Aspen simulation method for the properties of three-phase separation
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Hello, everyone! During hydrogenation simulation calculations, the presence of water injection makes it difficult to perform three-phase separation calculations for the high-pressure and low-pressure separators, as no suitable property methods can be found. I tried several physical property methods, the Grayson method; the concentrations of hydrogen sulfide and ammonia in the aqueous phase differ significantly ； In the NRTL method, the contents of non-condensable gases and hydrocarbons in the aqueous phase also vary significantly. I would like to ask those who work on hydrogenation simulations: once this problem is resolved, which property method should be used to achieve three-phase separation of hydrogen-rich fluid, water, hydrogen sulfide, ammonia, and petroleum components? Thank you!
Two two-phase separation tanks can be considered as an alternative to three-phase separation. HYSYS has good three-phase separation performance.
Is it necessary to set a Henry component for gases?
I don’t know, and I won’t set it either.