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Hi, Why isn't it recommanded to use a flash at low temperatures ? and why would we prefer a flash instead of a distillation column in some cases (ex: if we have to pull off methane from a natural gas) ? thank you :)

What does mean "a system with a relative degree one"? It's a hypothesis made for the application of the "lambda-tracking" method of control : the system must have a relative degree one !..i don't have much more details on this hypothesis. [ lambda-tracking is a relatively...

hi, I just want to know if it'a possible to make a distillation to separate propane from iso-butane at a very low temperature (-1?? C).

Hi everyone, what's a system with "a relative degree one"? Thanks, db.

hi, i'm trying to design a distillation column which will separate propane from butane (at 18 atm) and i'm looking for the equilibrium curve for the mixture butane-propne... i didn't find it. can someone send it to me please ? thanks a lot.