# Aspen HYSYS Reviews **Vendor:** Aspen Technology **Category:** [Oil and Gas Simulation and Modeling Software](https://www.g2.com/categories/oil-and-gas-simulation-and-modeling) **Average Rating:** 4.5/5.0 **Total Reviews:** 45 ## About Aspen HYSYS Maximize safety, throughput and profits by optimizing the entire site in one environment using industry-validated simulation accuracy and time-saving workflows. ## Aspen HYSYS Reviews ### 1. Best Chemical Simulator for process **Rating:** 4.5/5.0 stars **Reviewed by:** Mehulkumar S. | Graduate Engineering Trainee, Mid-Market (51-1000 emp.) **Reviewed Date:** May 22, 2022 **What do you like best about Aspen HYSYS?** Aspen HYSYS is a versatile process simulator. You can simulate any chemical process with different cases. It has a wide range of thermodynamic packages and compounds are available for different needs. The specialized processes like amine, HF, and hydrogen correction can be embedded in the process to get more accurate results. Different types of optimization, sensitivity analysis, Thermophysical data, and curves can be obtained for a wide range of process parameters. Recycle option is there which is not available in aspen plus. Unit operations for refineries are available in HYSYS. Crude assay and petroleum characteristics are more relevant than other simulators. Energy optimization, capital cost estimators, and Pinch analysis can be done with just one click. The help menu is very useful to get the theory behind various options available. **What do you dislike about Aspen HYSYS?** The user interface and selection of thermodynamic packages are very confusing. One needs to be an expert in thermodynamics before doing any modification. For custom packages, primitive computer language like FORTRAN is used. Unlike open-source simulator DWSIM, Calculation steps and equations are hidden from the user. **Recommendations to others considering Aspen HYSYS:** If you are an expert and want to get an in-depth understanding of the process which is very near to the real plant use HYSYS only. If you are a novice my suggestion would use another open-source easy-to-use software that builds a base for advanced simulation. **What problems is Aspen HYSYS solving and how is that benefiting you?** I am using aspen HYSYS for a better understanding of the effect of the process parameters on the chemical process. Hysys provide a range of studies to get in-depth knowledge of parameter vs variable. I realized that by using HYSYS, I can get a more in-depth view of process variable with changes in parameters. Help menu is there if i want to understand the theory behind the calculation which helps to get more insight. ### 2. Great experience **Rating:** 5.0/5.0 stars **Reviewed by:** Mohit R. | Production Engineer, Enterprise (> 1000 emp.) **Reviewed Date:** June 29, 2022 **What do you like best about Aspen HYSYS?** All possible scenarios are available and interface is too simple **What do you dislike about Aspen HYSYS?** As such there is nothing to dislike in Aspen environment **Recommendations to others considering Aspen HYSYS:** Great tool for simulation **What problems is Aspen HYSYS solving and how is that benefiting you?** Helps to get possible scenarios, get to know the sequencing of equipments ### 3. Staple Process Engineering Software **Rating:** 4.0/5.0 stars **Reviewed by:** Johann C. | Process Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** May 03, 2022 **What do you like best about Aspen HYSYS?** Well guided step by step usage. Simple to use. **What do you dislike about Aspen HYSYS?** Hydraulics is not to powerful/smart. Large models can be slow to run. **Recommendations to others considering Aspen HYSYS:** You may start with free DWSIM for practice. HYSYS is superior but it is not free. **What problems is Aspen HYSYS solving and how is that benefiting you?** Heat and mass balance. Determination of thermodynamic properties. Basic equipment sizing. ### 4. Review Regarding Aspen HYSYS Software **Rating:** 5.0/5.0 stars **Reviewed by:** Jay M. | Graduate Engineering Trainee, Enterprise (> 1000 emp.) **Reviewed Date:** August 31, 2021 **What do you like best about Aspen HYSYS?** Aspen HYSYS Software is very useful software provided by aspen tech and it is best for simulation purposes especially for oil and gas processes. With this software, I do simulation on heat exchanger, distillation, compressor, absorber, pump, reactor and so many things and you can also find the property of the liquid and gas mixture at various parameter.also we can do the sensitivity analysis and optimisation. **What do you dislike about Aspen HYSYS?** Everything is fine about the Aspen HYSYS software, but sometimes it gives run time error and also taking a long time to run the simulation. **Recommendations to others considering Aspen HYSYS:** One should always try Aspen HYSYS Software one who looking for the process simulater which help you to understand the process plant, properties and effects of parameters. **What problems is Aspen HYSYS solving and how is that benefiting you?** Generally, using Aspen HYSYS I do simulation on various processes like distillation, Absorber, and heat exchanger and many more process units and also I can find properties of different compositions with different parameters. And process optimisation. ### 5. Best software for Designing and Simulation **Rating:** 5.0/5.0 stars **Reviewed by:** Meetkumar P. | Graduate Engineering Trainee, Mid-Market (51-1000 emp.) **Reviewed Date:** January 31, 2022 **What do you like best about Aspen HYSYS?** I liked the most the designing and simulation of process plants and doing heat and mass balance for distillation column **What do you dislike about Aspen HYSYS?** Sometimes I am facing issue in simulation to drag and drop of equipment **Recommendations to others considering Aspen HYSYS:** Highly recommended to collegues for designing and simulation **What problems is Aspen HYSYS solving and how is that benefiting you?** Designing distillation column and reactor Simulation of process plants ### 6. ASPEN HYSYS is one of the Best Simulation software **Rating:** 5.0/5.0 stars **Reviewed by:** Sumit S. | Senior Process Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** August 18, 2021 **What do you like best about Aspen HYSYS?** Aspen HYSYS interface is very user-friendly. It is effortless to integrate with other tools such as Aspen EDR, MS excel. It has an extensive component database. **What do you dislike about Aspen HYSYS?** It needs some improvement in the visual representation part. Limited options are there to modify text inserted. **Recommendations to others considering Aspen HYSYS:** Aspen HYSYS is handy simulation software and simple to use in comparison to Aspen Plus. **What problems is Aspen HYSYS solving and how is that benefiting you?** I am using Aspen HYSYS for building simulations, property generation/estimation, and pressure relief valve sizing relief load calculations ### 7. Review on experience with Aspen Hysys till date **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Oil & Energy | Enterprise (> 1000 emp.) **Reviewed Date:** September 30, 2021 **What do you like best about Aspen HYSYS?** Aspen Hysys provides best and easy interface to simulate processes used in refinery operation. Along with that it also helps in sensitivity analysis and properties generation used in modelling. **What do you dislike about Aspen HYSYS?** Many times it abruptly stops working after not responding page and also the backup is not available thereafter. Run time error faced during simulation is also cumbersome at times. **Recommendations to others considering Aspen HYSYS:** Chemical engineering working in the area of process design must try this as it eases a lot of day to day stuff happening in refinery. User interface is also friendly and makes it easy for the new leraners to learn quickly. **What problems is Aspen HYSYS solving and how is that benefiting you?** Process simulation has been my main purpose of using Aspen Hysys. Physical parameter generation, process optimization, ecomoic analysis and efficiency check are the areas where I uses the most. ### 8. Aspen Hysis, batter simulation , if basics are clear than it will be too helpful to understand **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Higher Education | Small-Business (50 or fewer emp.) **Reviewed Date:** January 14, 2022 **What do you like best about Aspen HYSYS?** Aspen-HYSIS is effective for steady state simulation majorly petroleum product **What do you dislike about Aspen HYSYS?** It is difficult and vast compared to other simulation softwares **What problems is Aspen HYSYS solving and how is that benefiting you?** Simulation of the SRU can enable more reliable operations and fewer shutdowns through the prevention of issues and quick and effective troubleshooting. In this paper, we present three common operational issues and show how simulation was used to prevent or quickly resolve the situation. ### 9. Hysys is the best product for modeling petroleum product preparation systems **Rating:** 4.5/5.0 stars **Reviewed by:** Rustam H. | Геолог, Small-Business (50 or fewer emp.) **Reviewed Date:** March 21, 2021 **What do you like best about Aspen HYSYS?** The program is by far one of the best oil and gas treatment programs. Has a wide functionality that allows more detailed and accurate modeling of the oil product preparation system. Simple and intuitive interface **What do you dislike about Aspen HYSYS?** creation and preparation of data on the composition of oil and gas **Recommendations to others considering Aspen HYSYS:** I recommend this excellent program for those people who are faced with the oil and gas treatment system as it solves many issues and helps to obtain the desired result at the stage of modeling and selection. **What problems is Aspen HYSYS solving and how is that benefiting you?** This program allows you to create an optimal system for the preparation of petroleum products based on the composition and conditions. As a result, we get the result that we want to highlight at the output. Having simulated the training system for this program, we can easily start implementing this scheme in production. ### 10. I used this software to study of "TEG" loss in the process of Gas Dehydration Unit. **Rating:** 5.0/5.0 stars **Reviewed by:** Chandra C. | I, Small-Business (50 or fewer emp.) **Reviewed Date:** March 19, 2021 **What do you like best about Aspen HYSYS?** That was my first time when I went to use it. Due to it's simple layout and lots of helping features I was able to make a process flow diagram easily ,to do graphs and to go for analysis of designs and equipment. It's working efficiency with high accuracy makes me more positive to use it again and again. **What do you dislike about Aspen HYSYS?** it's expensive nature of Cost nothing else. It's powerful interface ,features and benefit's makes it more fascinating. **What problems is Aspen HYSYS solving and how is that benefiting you?** To optimize the Gas Dehydration unit and to the study of "Tri-ethylene Glycol" loss in the process of GDU. with the help of this software I found the specific reason of losing the quantity of 'TEG' (Tri-ethylene glycol) during Gas dehydration process . This software made me able to optimize the whole 'GDU' unit for controlling the "TEG" loss during GDU process. ### 11. Aspen Hysys review **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Chemicals | Enterprise (> 1000 emp.) **Reviewed Date:** October 12, 2021 **What do you like best about Aspen HYSYS?** I like the speed up and slow down option availablity when we are using controo systems to look at the change in values of plant. **What do you dislike about Aspen HYSYS?** I think the initial speed of software could be a little better, since it takes good enough time for start up. **Recommendations to others considering Aspen HYSYS:** The control system speee up buttons are really good, and one should definitely try them. **What problems is Aspen HYSYS solving and how is that benefiting you?** I am trying to simulate my plant variables usinh Aspen Hysys ### 12. Aspen HYSYS **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Oil & Energy | Small-Business (50 or fewer emp.) **Reviewed Date:** October 27, 2020 **What do you like best about Aspen HYSYS?** Advanced system in process engineering for Oil and Gas, Refineries, Fertilizer and services industries **What do you dislike about Aspen HYSYS?** Nothing to dislike in this valuable product. **Recommendations to others considering Aspen HYSYS:** Very easy to use software with friendly graphics. **What problems is Aspen HYSYS solving and how is that benefiting you?** Oil and Gas processing Upstream, Midstream and Downstream Processes ### 13. Great Modelling Software **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Oil & Energy | Mid-Market (51-1000 emp.) **Reviewed Date:** September 30, 2021 **What do you like best about Aspen HYSYS?** Most common processes can be easily modeled in this software. **What do you dislike about Aspen HYSYS?** Some advance process equipments need to be added in the software. **Recommendations to others considering Aspen HYSYS:** Some more advance equipments can be added in the model pallet. **What problems is Aspen HYSYS solving and how is that benefiting you?** Any process related to oil processing and refining can be easily simulated and modeled. ### 14. I have done my fine year project by simulating the heat exchanger through Aspen Hysys. **Rating:** 5.0/5.0 stars **Reviewed by:** Ashir Gul S. | Graduate Trainee - Operations, Small-Business (50 or fewer emp.) **Reviewed Date:** March 18, 2021 **What do you like best about Aspen HYSYS?** Everyone can check the feasibility of project without investing money and it prevents loss of your investment as well as minimize failure chances. **What do you dislike about Aspen HYSYS?** These is missing properties alot of few compounds. **Recommendations to others considering Aspen HYSYS:** G2 is a good plateform where you can get information and service about aspen Hysys. This sowft is all about your estimation of project with perfect cost and feasibility. **What problems is Aspen HYSYS solving and how is that benefiting you?** Well i have found the poor performance of heat exchanger when i was doing my final year thesis and i found the o through Aspen Hysys which was leakage issue in heat exchanger which affeacted the heat transfer rate. ### 15. Very usefull and good interface. **Rating:** 5.0/5.0 stars **Reviewed by:** Ridhollahi R. | Assistant field engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** March 22, 2021 **What do you like best about Aspen HYSYS?** this application help me to simulate gas processing and distillation process. also easy to calculate the capacity of cooling water needed for heat exchanger. The interfaced used is easy to understood, even by a colleaguer. **What do you dislike about Aspen HYSYS?** Sometime i feel lagging when working this application. It need more ram and better disk space **Recommendations to others considering Aspen HYSYS:** For everyone who works at oil & gas enginer, you must completely understand using this application, for better knowledge. **What problems is Aspen HYSYS solving and how is that benefiting you?** Heat exhanger, gas fraction from distillation process. ### 16. Aspen HYSYS Simulation for Capstone Project **Rating:** 4.5/5.0 stars **Reviewed by:** Gokul P. | Chemical Engineering Graduate, Mid-Market (51-1000 emp.) **Reviewed Date:** October 26, 2020 **What do you like best about Aspen HYSYS?** Aspen HYSYS is great and can be applied to many different chemical processes. Really great for simulating any process. **What do you dislike about Aspen HYSYS?** It is easy get lost and overwhelmed with all of the information given to you in the program. It is important to take your time with it and really understand all of its components for a s successful simulation. **Recommendations to others considering Aspen HYSYS:** Take your time with the software. At first it will be overwhelming, however take your time familiarizing yourself with the software. Once you understand how everything works you will be Well on your way in simulating real chemical processes. **What problems is Aspen HYSYS solving and how is that benefiting you?** I used HYSYS for my fourth year capstone projects. I used it to simulate a wastewater treatment process. My group and I developed the process, configured the different pieces of equipment and optimized the process to clean the required amount of industrial water. ### 17. "Aspen Hysys is an extraordinary industrial simulation and design tool" **Rating:** 5.0/5.0 stars **Reviewed by:** Criss A. | Project Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** September 16, 2020 **What do you like best about Aspen HYSYS?** Aspen Hysys has the best tools to simulate oil and gas processes, it is really a very complete software, with Hysys I have been able to carry out all kinds of processes, from compressor plant designs to hydrocarbon distribution network designs, one of the main functions for which I use this software is the dynamic way in which it shows the simulations, it is really wonderful to observe the complete process in a simulator, in addition to showing exact final results and with minimal errors, unlike other software where the results They are often questionable, Aspen Hysys has a robust interface but it is wonderful when you learn how to use it. **What do you dislike about Aspen HYSYS?** I do not find anything that I dislike about this software, but for many people it could be expensive to obtain it, however I consider that it is worth what it costs due to its high capacities to create designs and simulate processes with real results. **Recommendations to others considering Aspen HYSYS:** I recommend this software to all Process Engineers, Educators and Organizations in the framework of Industrial Processes because the results are truly incredible. **What problems is Aspen HYSYS solving and how is that benefiting you?** Personally Aspen Hysys is a favorite simulation software, in my Hydrocarbon Distribution Network projects, the hydraulic evaluation of the pipes is specified in a meticulous way and takes the velocity profile along the pipe, the increase in speed, If there is pressure drop due to friction, it also makes a thorough evaluation of the erosion rate, I really love it because it shows if the speeds of the pipe exceed the design standards and thus we can ensure its useful life and avoid future problems. That is how thorough it is and for all processes it provides real results, which is what is sought when simulating industrial processes. ### 18. I really like its extensive database with various thermodynamic models **Rating:** 4.5/5.0 stars **Reviewed by:** Derick K. | Performance Development Coordinator, Mid-Market (51-1000 emp.) **Reviewed Date:** September 15, 2020 **What do you like best about Aspen HYSYS?** Its first feature that highlights this software in its latest version is the extensive database with available thermodynamic models as well as a wide and detailed database of substance properties and parameters for many mixtures. Its optimizer allows to carry out sensitivity analysis in a much more precise way. Best of all is the way you perform calculations with forward and backward spread of variables. **What do you dislike about Aspen HYSYS?** Sometimes your way of calculating can be problematic because the variable propagation method sometimes causes convergence problems if the calculation engine is not turned off when the flowchart is being completed. This forces you to keep track of the available degrees of freedom. However, this can be controlled if handled properly **Recommendations to others considering Aspen HYSYS:** It is recommended for those engineers, designers or companies that wish to have a very powerful process simulator that is very easy to learn. In addition, its database is very extensive and thus covers a wide range of engineering simulations **What problems is Aspen HYSYS solving and how is that benefiting you?** With this program it is possible to carry out a complete simulation of the production processes that we wish to carry out maintenance or consider industrial operations and thus with energy integration we can analyze the study processes in a more integrative way. In other words, estimations and predictions can be made in a very comprehensive way, saving us a lot of mathematical and thermodynamic calculations. ### 19. I recently used Aspen for my Design Project for Production of Butadiene Plant **Rating:** 5.0/5.0 stars **Reviewed by:** Diana S. | Pipeline Intern, Small-Business (50 or fewer emp.) **Reviewed Date:** March 17, 2021 **What do you like best about Aspen HYSYS?** So far the features are great, easy to access. Simple yet understandable. **What do you dislike about Aspen HYSYS?** Sometimes it wont converge because the fluid package wasnt the right fit. **What problems is Aspen HYSYS solving and how is that benefiting you?** Problems: I cant converge my distillation columns Benefits: Easy calculation. It is automated cus it provides the calculation for you and specific details. It is interesting because the more you discover the easier it';; gets. ### 20. Unique in its performance **Rating:** 4.5/5.0 stars **Reviewed by:** Jack S. | Drilling Specialist Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** October 14, 2020 **What do you like best about Aspen HYSYS?** It has many features and options that make it increasingly innovative with each version that is released. Its optimizer is very powerful and also has an integration progressing in the CAPE standard and also has an interface that is quite user-friendly and is very visually representative. **What do you dislike about Aspen HYSYS?** The price is a bit higher than similar software on the market, but its ease of use makes it worthy of that price in some way. **What problems is Aspen HYSYS solving and how is that benefiting you?** It is very helpful in the work of saving us many thermodynamic calculations and mass-energy balance in processes related to the industrial area. In addition, you can create and design an industrial process in a more dynamic way using the thermodynamic models available and know the convergence of certain parameters and calculate different properties and variables. ### 21. The best in simulation of Chemical Processes "Aspen Hysys" **Rating:** 5.0/5.0 stars **Reviewed by:** Jacob L. | Field Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** August 09, 2020 **What do you like best about Aspen HYSYS?** Aspen Hysys is a simulator that responds to many chemical processes in the oil and natural gas processing industry, different sectors have benefited from this simulator for years, and it is always one of the best options for creating design and simulation processes. For example, simulate a distillation tower, a dehydration plant, etc. Since Aspen added Hysys to its product portfolio, I am more inclined to use it, because it has improved significantly, this simulator is one of my favorites as it shows me the simulated process in a stable and dynamic state, that is, that for my presentations of projects, it allows me to dynamically show the movements in the process so that the jury sees what I really want to solve. **What do you dislike about Aspen HYSYS?** It has nothing that I dislike. I think it has a complete package and a powerful interface that will allow you to have the best of the processes with all its parameters and indicators. **Recommendations to others considering Aspen HYSYS:** I always recommend Aspen Hysys to everyone who works with industrial chemical processes and industrial processes such as oil and gas, it is the best tool for process design and evaluation, process optimization. It's great **What problems is Aspen HYSYS solving and how is that benefiting you?** Aspen Hysys for me is a very powerful simulator, with a very powerful interface that not everyone can use without prior explanation or have had contact with a similar simulator, but once you become familiar with its processes you will realize that it is easy and the best option to observe the processes, with Aspen Hysys I love to simulate because when you are designing a process from scratch, if you are missing a parameter it indicates in red that you have not placed it or the range in which the parameter should be, it happened to me that When simulating a fractionation tower, in which two streams of rich gas are mixed, the energy stream had to be placed in the heat exchanger in addition to giving it specifications within the exchanger, which in PRO II is an internal variable of the process, and the Aspen Hysys simulator just didn't run, but the simulator is very friendly and would tell me what was missing, immediately upon connecting the power stream, I could continue with the simulation now yes successively. turning a stream rich in C3 + which was the main reason I was simulating. It is one more quality of Hysys since you correct everything on the way, with the green and red traffic light it is great, because it indicates how well you are in the process, it is very annoying those simulators that end the process and you run the simulation tells you that everything is fine and the final results are not what you want and you must start modifying parameters, that does not happen with Aspen Hysys. ### 22. Simulation with precision and ease **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Chemicals | Enterprise (> 1000 emp.) **Reviewed Date:** March 30, 2021 **What do you like best about Aspen HYSYS?** Hysys has been an integral part for my simulation projects. The simulation results are very precise and pilot results are also very much inline. I've used it for distillation columns and single fixed bed reactors. **What do you dislike about Aspen HYSYS?** The user interface could be a little better. **What problems is Aspen HYSYS solving and how is that benefiting you?** Used it for single fixed bed reactors and distillation column design. The height of the packed column and size of the reactor required for an organic synthesis were simulated correctly. ### 23. Aspen hysys is a great tool for process modeling and simulation study **Rating:** 4.5/5.0 stars **Reviewed by:** Priya S. | Project Leader – New Model development - Production Engineering Paint, Enterprise (> 1000 emp.) **Reviewed Date:** March 24, 2021 **What do you like best about Aspen HYSYS?** Process calculations are easy to do in ASPEN hysys and it is quite user friendly too **What do you dislike about Aspen HYSYS?** It is bit expensive rather than that there is nothing I dislike **Recommendations to others considering Aspen HYSYS:** Definitely will recommend this **What problems is Aspen HYSYS solving and how is that benefiting you?** Heat exchangers ### 24. Industrial Need for better results. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Consumer Services | Mid-Market (51-1000 emp.) **Reviewed Date:** March 19, 2021 **What do you like best about Aspen HYSYS?** It provides satisfaction for the industrial process and reduce the time for troubleshooting. **What do you dislike about Aspen HYSYS?** It’s all depends upon software and need high level of competence. **What problems is Aspen HYSYS solving and how is that benefiting you?** It is useful for design and process. Moreover many design faults can be manipulated from it at initial stages by which cost can be controlled. ### 25. Needed ASPEN for a project, has great repository for chemicals and can also create the ones included **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Chemicals | Small-Business (50 or fewer emp.) **Reviewed Date:** March 22, 2021 **What do you like best about Aspen HYSYS?** Repository of substances/chemicals and unit ops. **What do you dislike about Aspen HYSYS?** Lack of hints, as a relatively inexperienced user in the beginning it was tiring to grab help from the internet or an expert **What problems is Aspen HYSYS solving and how is that benefiting you?** Was trying to simulate and compare alternative methods of gas separation. Units operations were customizable. ### 26. Aspen HYSYS is a world class simulation tool that is highly beneficial for Plant Optimizations **Rating:** 5.0/5.0 stars **Reviewed by:** Engr. Khawaja R. | Business Development Executive, Small-Business (50 or fewer emp.) **Reviewed Date:** October 24, 2020 **What do you like best about Aspen HYSYS?** Its user friendly interface, safety analysis, petroleum assays calculations, flow assurance calculations and above all its optimization calculations **What do you dislike about Aspen HYSYS?** I dont find anything to dislike because its features and benefits are excellent **Recommendations to others considering Aspen HYSYS:** To perform Optimization Analysis, Safety analysis, design calculations in a most user friendly way with ease then Aspen HYSYS is the most suitable and valuable software to use. **What problems is Aspen HYSYS solving and how is that benefiting you?** Flow assudmrance calculations (Corrosion rates, slug analysis), Optimization calculations, PSV design and plant ideal behaviour ### 27. I used aspen in my university and now I have to use it for my PhD thesis to make a pyrolysis plant. **Rating:** 5.0/5.0 stars **Reviewed by:** Yehya J. | Scientific Researcher, Small-Business (50 or fewer emp.) **Reviewed Date:** November 19, 2020 **What do you like best about Aspen HYSYS?** The best part in aspen is the built in fluid thermo dynamics equation **What do you dislike about Aspen HYSYS?** Actually it is perfect but it needs knowledge in its usage **Recommendations to others considering Aspen HYSYS:** Go also for aspen plus to include solid phase **What problems is Aspen HYSYS solving and how is that benefiting you?** A am solving a kinetic model of more than 300 compounds.in aspen 300 compounds are made easy as one compound it doesn't matter ### 28. Convenient to use **Rating:** 2.5/5.0 stars **Reviewed by:** Verified User in Oil & Energy | Mid-Market (51-1000 emp.) **Reviewed Date:** March 18, 2021 **What do you like best about Aspen HYSYS?** Its GUI is very attractive and easy to use. **What do you dislike about Aspen HYSYS?** some chemicals related to pharmaceuticals, i could not find. **What problems is Aspen HYSYS solving and how is that benefiting you?** Some chemical process available to learn the software. ### 29. The best engineering software i’ve used **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Mechanical or Industrial Engineering | Mid-Market (51-1000 emp.) **Reviewed Date:** September 09, 2020 **What do you like best about Aspen HYSYS?** The program allows for a wide range of simulations that can allow you to perform simple tasks that are normally repetitive as well as extremely in depth optimisation on specific parts of a process, allowing you to see what changes in the system might impact. **What do you dislike about Aspen HYSYS?** The software itself does have a dated looking user interface however this is a very minor issue. The program it’s self could be more user friendly to newcomers as figuring the system out initially can be very daunting. **What problems is Aspen HYSYS solving and how is that benefiting you?** I used ASPEN to run simulations of stripping and absorbing columns i was optimising for my design project, allowing me to make changes the system without redoing my entire calculations. ### 30. My experience with ASPEN Hysis for modelling CO2 absorption using molecular sieves **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Education Management | Enterprise (> 1000 emp.) **Reviewed Date:** October 27, 2020 **What do you like best about Aspen HYSYS?** The layout was easy to understand and create. There were a lot of inbuilt equations that I could use. **What do you dislike about Aspen HYSYS?** Customer service was a little poor. When I encountered a problem, they helped at first. But when I could not solve the problem using the first suggestions, the customer care response had become much slower. **What problems is Aspen HYSYS solving and how is that benefiting you?** I am trying to model the use of Molecular sieves for CO2 absorption used in the natural gas drying process. The process and design was easy to accomplish. ### 31. Top Design Program **Rating:** 5.0/5.0 stars **Reviewed by:** David R. | Proposal Engineer, Small-Business (50 or fewer emp.) **Reviewed Date:** October 20, 2020 **What do you like best about Aspen HYSYS?** We get data doing some calculations really close to real life, in my case forma heat exchangers **What do you dislike about Aspen HYSYS?** It is not so easy to use because there are some red mistakes that can't be avoided **Recommendations to others considering Aspen HYSYS:** Check all the data before run **What problems is Aspen HYSYS solving and how is that benefiting you?** Heat exchangers pressure drop and outlet temperature ### 32. Aspen HYSYS is an amazing software to simulate the whole production process. **Rating:** 4.0/5.0 stars **Reviewed by:** numrah s. | Enterprise (> 1000 emp.) **Reviewed Date:** September 18, 2020 **What do you like best about Aspen HYSYS?** It allows to compare and contrast different equipment being used for the process. **What do you dislike about Aspen HYSYS?** It doesn't have all the chemical compounds used in the industry especially if you're designing a bioprocess which can be a draw back when designing. **Recommendations to others considering Aspen HYSYS:** Its a really amazing software if you're designing processes **What problems is Aspen HYSYS solving and how is that benefiting you?** Sensitivity analysis and optimization ### 33. ASPEN REVIEW **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Utilities | Enterprise (> 1000 emp.) **Reviewed Date:** October 19, 2020 **What do you like best about Aspen HYSYS?** Flexibility and traceability. its a complex software and a great toolu **What do you dislike about Aspen HYSYS?** Not easy to learn. Also software interaction with other softwares takes close attention. **Recommendations to others considering Aspen HYSYS:** Imvest in this software and save project cost. It wil help in getting good control on project and help project management. **What problems is Aspen HYSYS solving and how is that benefiting you?** Various project problems. We could optimize cost. ### 34. Great software **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Chemicals | Small-Business (50 or fewer emp.) **Reviewed Date:** October 24, 2020 **What do you like best about Aspen HYSYS?** Great software to build simulation to support project and development. **What do you dislike about Aspen HYSYS?** Graphic designing could be improved to see the flow and error management can could be improved. **What problems is Aspen HYSYS solving and how is that benefiting you?** Fractional distillation. Great way to see the product simulation ### 35. The Perfect Learning Tool **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Higher Education | Mid-Market (51-1000 emp.) **Reviewed Date:** September 10, 2020 **What do you like best about Aspen HYSYS?** What I enjoyed about ASPEN was the ease of access. It was very intuitive and contained an impressive number of features to model nearly any imaginable process **What do you dislike about Aspen HYSYS?** I can't really think of anything that I disliked about ASPEN **What problems is Aspen HYSYS solving and how is that benefiting you?** I used ASPEN to model flow systems and separation processes ### 36. Review about hyses **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Mechanical or Industrial Engineering | Mid-Market (51-1000 emp.) **Reviewed Date:** October 23, 2020 **What do you like best about Aspen HYSYS?** Very powerful software for equipment design **What do you dislike about Aspen HYSYS?** Aspen should seperate the modulesfor turbines and heat exchanger design **Recommendations to others considering Aspen HYSYS:** Must try this software **What problems is Aspen HYSYS solving and how is that benefiting you?** I am desining Heat exvhanger ### 37. 2 years of experience in industry field **Rating:** 2.5/5.0 stars **Reviewed by:** Verified User in Chemicals | Enterprise (> 1000 emp.) **Reviewed Date:** September 12, 2020 **What do you like best about Aspen HYSYS?** How to solve the problem easily and get the result **What do you dislike about Aspen HYSYS?** The small mistake will stop the result and stock it **Recommendations to others considering Aspen HYSYS:** Make it more simple **What problems is Aspen HYSYS solving and how is that benefiting you?** I solve the heat exchanger temperature, one of the temperature unknown ### 38. Good software for carrying out process simulations **Rating:** 4.0/5.0 stars **Reviewed by:** Arjun S. | Process Engineer, Oil & Energy, Mid-Market (51-1000 emp.) **Reviewed Date:** December 02, 2019 **What do you like best about Aspen HYSYS?** Blowdown analysis tool which they have newly introduced is more accurate to do staggered RO size calculations and finding the minimum temperature at discharge of RO especially for Adiabatic cold case. **What do you dislike about Aspen HYSYS?** For dense phase it still needs work as it keeps flipping from 0 to 1 for denser gas phase. **What problems is Aspen HYSYS solving and how is that benefiting you?** Aspen HYSYS has helped me in do dynamic calculations for compressor settle out conditions. It benefitted me to finalize my anti surge valve data sheets and verifying vendor data. ### 39. Incredible tool **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Chemicals | Enterprise (> 1000 emp.) **Reviewed Date:** November 25, 2019 **What do you like best about Aspen HYSYS?** I love that I am able to do complex simulations with this program. I also love that I can do graphs and analysis of designs/equipment. HYSYS saves more so much time and work much more efficiently. **What do you dislike about Aspen HYSYS?** It takes a long time to load the program and other things. Also can be confusing when things don't converge and I don't know what to do. Can be a bit complicated to use when starting up. I also dislike that the program randomly crashes sometimes. **What problems is Aspen HYSYS solving and how is that benefiting you?** I can do a quick analysis of designs much more quickly with HYSYS than I could by hand. I can also check hand calculations with HYSYS to make sure I am doing my work correctly. ### 40. Hysys Review **Rating:** 4.0/5.0 stars **Reviewed by:** Vivek B. | Managing Director, Oil & Energy, Mid-Market (51-1000 emp.) **Reviewed Date:** December 02, 2019 **What do you like best about Aspen HYSYS?** The ease of use and familiarity of all attributes **What do you dislike about Aspen HYSYS?** The Aspen suite that one has to buy even though I will only use the simulation software. **What problems is Aspen HYSYS solving and how is that benefiting you?** Heat & Mass balance of production system. Evaluating operational scenarios. Once the process has been simulated it’s very easy to run the cases I want ### 41. Hysys Review **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Oil & Energy | Enterprise (> 1000 emp.) **Reviewed Date:** December 05, 2019 **What do you like best about Aspen HYSYS?** User interface is intuitive for basic simulations. Blowdown and depressuring utility is extremely useful. **What do you dislike about Aspen HYSYS?** Dynamics is very hard to use and not intuitive - resources for basic simulation set-up would be useful. **What problems is Aspen HYSYS solving and how is that benefiting you?** Using hysys for depressuring calculations to ensure our site meets API521 standards. ### 42. I had simulated Distillation process , process simulation. **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Design | Small-Business (50 or fewer emp.) **Reviewed Date:** December 04, 2019 **What do you like best about Aspen HYSYS?** We can design process simulation so good **What do you dislike about Aspen HYSYS?** Process design controlling the process ,simulation and optimization of process **What problems is Aspen HYSYS solving and how is that benefiting you?** My specialization is process designing and process optimization and this program can help me so easily to solve problems. ### 43. Excellent engineering tool **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Oil & Energy | Mid-Market (51-1000 emp.) **Reviewed Date:** November 28, 2019 **What do you like best about Aspen HYSYS?** Can save you a massive amount of time and provide much higher levels of accuracy compared to doing things by hand **What do you dislike about Aspen HYSYS?** It can sometimes fail to converge without you knowing how to resolve it **What problems is Aspen HYSYS solving and how is that benefiting you?** Have used for a wide range of applications, flow/pressure drops, equipment design, operations validation, depressuring, physical properties ### 44. A nice software to inprove your ingenering skills **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Biotechnology | Mid-Market (51-1000 emp.) **Reviewed Date:** November 27, 2019 **What do you like best about Aspen HYSYS?** It is a software where you can test whatever you want and see how could be the behaviour of your sistem in the reality **What do you dislike about Aspen HYSYS?** the cahnges in the interface of the new versions. **What problems is Aspen HYSYS solving and how is that benefiting you?** Normally I used to solve problems related to redesign equipment and see the possible response ### 45. Review of Aspen **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Utilities | Mid-Market (51-1000 emp.) **Reviewed Date:** November 23, 2019 **What do you like best about Aspen HYSYS?** I like how easy it is to create a simulation with minimal effort and the layout of it is not complicated. **What do you dislike about Aspen HYSYS?** Sometimes it can be quite clonky when running a simulation and takes longer than expected **What problems is Aspen HYSYS solving and how is that benefiting you?** Injecting of water solutions into oil wells to ensure it is most effective ## Aspen HYSYS Discussions - [How much does Aspen Hysys cost?](https://www.g2.com/discussions/how-much-does-aspen-hysys-cost) - [Which is better Aspen Hysys vs Aspen Plus?](https://www.g2.com/discussions/which-is-better-aspen-hysys-vs-aspen-plus) - [What is Aspen Hysys for?](https://www.g2.com/discussions/what-is-aspen-hysys-for) - [user can use this software for their process plant optimization. Industries include Oil and Gas Industries, Fertilizer Sector, Oil Refineries](https://www.g2.com/discussions/32878-user-can-use-this-software-for-their-process-plant-optimization-industries-include-oil-and-gas-industries-fertilizer-sector-oil-refineries) - 1 upvote - [I need more practic to simulate high sulfur oil distillation](https://www.g2.com/discussions/49857-i-need-more-practic-to-simulate-high-sulfur-oil-distillation) - [View Aspen HYSYS pricing details and edition comparison](https://www.g2.com/products/aspen-hysys/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-10+19%3A05%3A38+-0500&secure%5Bsession_id%5D=7630d9bf-840f-45ad-b3c0-ed71fbbade75&secure%5Btoken%5D=2361769d999abce43c18a698076a05d827f6a291e0b52526c1697195a3417f12&format=llm_user) ## Aspen HYSYS Features **Agentic AI - Oil and Gas Simulation and Modeling** - Adaptive Learning - Decision Making ## Top Aspen HYSYS Alternatives - [gPROMS](https://www.g2.com/products/gproms/reviews) - 4.3/5.0 (23 reviews) - [CHEMCAD](https://www.g2.com/products/chemcad/reviews) - 4.0/5.0 (10 reviews) - [Surfer](https://www.g2.com/products/surfer/reviews) - 4.6/5.0 (124 reviews)