METHOD OF OBTAINING CARBON DIOXIDE FROM A CARBON DIOXIDE-CONTAINING GAS MIXTURE BY MEANS OF A MEMBRANE AND CONDENSING

摘要

A method of obtaining carbon dioxide from a CO2 - containing gas mixture, said method comprising the steps of flowing the cooled gas mixture into a gas separation membrane module to produce a carbon dioxide -rich permeate and a carbon dioxide- lean non-permeate, separating the partially condensed compressed carbon dioxide -rich permeate into a C02 rich liquid and a C02 lean vapor stream, providing cold energy with one or more streams selected from the group consisting of the cold carbon dioxide- lean stream, the C02 lean vapor stream, and a portion of the C02 rich liquid.