TREATMENT METHOD FOR SEPARATING CARBON DIOXIDE AND HYDROGEN FROM A MIXTURE

摘要

The invention relates to a method for treating a mixture (1) in order to separate carbon dioxide and hydrogen from said mixture, in which: i) the mixture (1) is cooled and partially condensed and a first liquid (4) is separated from the rest of the mixture in a first phase separator (E1); ii) a gas (3) from or derived from a gas from the first phase separator (E1) is treated in a hydrogen pressure swing adsorption module (B) in order to produce a hydrogen-rich gas (5) and a hydrogen-depleted residual gas (2); and iii) said hydrogen-depleted residual gas (2) or a gas (6) derived from said depleted gas (2) is cooled and partially condensed and a second liquid (7) is separated from the remaining gas (8) in a second phase separator (E2), separate from the first phase separator (E1), the first and/or second liquid (4, 7) or a liquid derived from the first and/or second liquid from the first phase separator (E1) and/or from the second phase separator (E2) being rich in carbon dioxide. The invention also relates to a facility for implementing such a method.