Method and device for separating a gas mixture according to a pressure swing adsorption process (PSA process).

摘要

Method for separating a first gas mixture (A, C) from a first gas (A) and at least a second gas (C) into a first gas (A) and at least a second gas (C) according to a pressure swing adsorption process (PSA process), comprising adsorbing at least one gas (C) in an adsorption mass (5) provided in each vessel of a plurality of vessels (1, 2, 3, 4), the adsorption strength for the first gas (A) is less than the adsorption strength for the second gas (C) and wherein a third gas (B) is added to the gas mixture, the adsorption strength of the third gas being greater than the adsorption strength of the first gas (A) is less than the adsorption strength of the second gas (C), and device for producing a product gas mixture of nitrogen gas (N2) and hydrogen gas (H2) from nitrogen gas (N2) and a hydrocarbon gas.