Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: PHP78
  • Order by date
  1. PHP78

    Lean amine loading for MEA

    Montemayor Thanks a lot for response. Prashant
  2. PHP78

    Lean amine loading for MEA

    Hi What is a typical value for lean amine loading in CO2 capture when MEA is used? I am trying to get information for using MEA for CO2 capture. From search i see various values. 0.13 to 0.2. What is the basis of this? These values look very high in comparison with other amines (DEA, MDEA)...
  3. PHP78

    operational data of aMDEA and Benfield process

    Hi zznook Check the Bryan Research and Engineering websiter. (www.bre.com) and go to the technical papers section. There they have given data for some commercial units. Ofcourse, you wont find column diameter etc there. but you can calculate them using correlations available in literature...
  4. PHP78

    gas to liquid rate in MDEA gas sweetening system

    Hi Although Aspen has bought HYSYS, HYSYS simulation package is as it was before. They are still working separately. Three major simulation engine in this area are: TSWEET, HYSYS and ASPEN ASPEN has some amine property packages which are based on some VLE theories (electrolyte-NRTL...
  5. PHP78

    gas to liquid rate in MDEA gas sweetening system

    Hi I have worked with different simulations fro amines. In my experience, ASPEN has not powerful simulation for the same. HYSYS and TSWEET have special packages for amines developed by specialist in that area. Therefore they are more reliable. Do you have these alternative simulations? I...
  6. PHP78

    gas to liquid rate in MDEA gas sweetening system

    It is difficult to tell unless we know the composition of a sour gas stream and what are the purity requirements. Can you be more specific about your problem? Like give some more details? What property package are you using in ASPEN? The results are strongly dependant on that. Give some more...
  7. PHP78

    absorber column

    dear 16613 Still your question is not clear. If I understand your information correctly, then you have plant which removes H2S using some amine (which amine?) and now you have to run it for removing H2S and CO2 simultaneously. OK. now what? What information you are looking for? - Have...
  8. PHP78

    Batch Distillation book

    The books you have mentioned are probably the most referred ones in the batch distillation area. In my opinion you should stick to them. Prashant
  9. PHP78

    Choose a process simulation model.

    Annie I think it depends on which system you are dealing with. In general, popular softwares for simulation in chemical engineering are 1. Aspen - now aspen has aquired HYSYS but still they are selling it separately. It has got lot of options and can do loads of things (solids...
  10. PHP78

    low pressure rich sour gas treating

    Jibran it is nice community here and people are ready to help. still i will suggest you that you should compare both options MEA and MDEA. why I am saying it is because.... though MDEA is known for long while, real applications came in large number in last 10 years. Thats what i can see...
  11. PHP78

    low pressure rich sour gas treating

    Hi I am PhD student working on such kind of problem. Well i have to firtst clarify that i dont have much industry experience and my work is synthesis of such flowsheets. well.. one of the main reason for your client to avoid MEA is it is highly corrosive and also thermodynamically, it is...
  12. PHP78

    interface between excel and MSDOS file

    friends thanks a lot. i think i have idea how to proceed. thanks again regards Prashant
  13. PHP78

    interface between excel and MSDOS file

    Dear EGT01 and IRstuff I think you have some experience what i am looking for. Let me explain you in detail what are steps i need. 1. Put input data on spreadsheet. 2. Click button on spreadsheet (some link throuh macro throuh visual basic????? ) 3. This will put this input data for fortran...
  14. PHP78

    interface between excel and MSDOS file

    Thank you very much for the tips. I will try to use them ans see what happens. regards Prashant
  15. PHP78

    interface between excel and MSDOS file

    Hi I want to import some data from excel spreadsheet to MSDOS file (or text file). I have some fortran programmes written and got executable file. I want interface with excel. for example.. if i want to change some number in my programme, i will change it in excel spreadsheet and that will...
  16. PHP78

    Amine Package on HYSYS

    Winson what design specifications did you give for your simulation (Reflux ratio, boilup ratio, purity etc). it depends on what kind of design specifications you give. if you list them then i can get better idea of your problem. Prashant
  17. PHP78

    Column optimization

    Hi if you are using commercial softwares, then they may not be used to do optimization studies like NLP, MINLP or similar optimization tools can do. I think ASPEN has got some sort of optimizer with it but they got limitations with them. Like it can't optimize height on its own. What you...
  18. PHP78

    Nonlinear vs linear system

    hi eogut First of all, how did you decide that your nonlinear system is unstabel? did you simultate it and found that it is unstable? Well, when you say that your nonlinear system is unstable, you are checking it at some initial point giving rise to unstability. That doesn't mean that it...
  19. PHP78

    HYSYS MDEA SIMULATION

    dear aikmeam and mondolfi its problem with HYSYS 3.1 version. I just checked the same stream n HYSYS 3.1 version and got the results which mondolfi was stating before .i.e. 210 kmol/hr H2S in vapor phase. i think we need to write to ASPEN .. Prashant
  20. PHP78

    HYSYS MDEA SIMULATION

    dear mondolfi I have HYSYS 2.4 version. and it doesn't have NH3 for amine package. But it doesn't matter as its conc is very very low compared to major components. I checked for this tream in separator and I am getting correct answer. Vapour stream is 14.56 knol/hr with H2S 0.612...

Part and Inventory Search

Back
Top