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Hello all, I want to ask if there is any rule of thumb for selecting discharge pressure of hydrogen gas compressor used to fill a hydrogen storage vessel, in relation with the storage vessel maximum pressure. The compressor is reciprocating (piston), although the quantity compressed is...

To mbt22 My knowledge so far concerning crude distillation is that using the TBP curve to construct the EFV curve of the whole crude at heater outlet conditions and flash zone is the first step for successful distillation calculations, because it will give the actual % vaporized. Creating EFV is...

Conditions Sorry for not providing the conditions to check for % vaporized Watkins made his illustration for the crude distillation at the following conditions Heater outlet T = 700 oF, P = 35 psia Flash Zone conditions T = 695 oF , P = 25 psia The heater outlet conditions are the main...

For those who have access to simulation software and are willing to check my inquiry, following are the analysis of the crude in the example of Watkins book: Bulk Gravity : 36.3 oAPI Light end analysis per 100 barrels bbl C2H6 0.1 C3H8 0.9 iC4H10 1.4 nC4H10 2.3 iC5H12...

Thank you all for your comments. Since the basis of distillation is vaporization, the simulation software should be able to provide the phase change of crude correctly. I don't know if it is possible for people who have access to different simulation software to try to find how much of a...

Hi, Which simulation software is considered the best and most accurate for crude refining ? Hysys, Chemcad, Pro II, Design II .. ? Did anyone try to cross check the simulation with manual calculation ?

Hi all, Refineries use many chemicals such as (corrosion inhibitors, scale inhibitors, neutralizers, filmers ... etc) in the utilities sections (water treatment, steam production ... etc) and process units. We receive many commercial offers when we prepare tenders for supply of such chemicals...