HIGH RECOVERY PSA CYCLE AND APPARATUS WITH REDUCED COMPLEXITY

摘要

PROBLEM TO BE SOLVED: To provide a pressure swing adsorption (PSA) process which separates a gas mixture by adsorbing gas components.;SOLUTION: In the pressure swing adsorption process including a step of separating the gas mixture by adsorbing the gas components in adsorption beds provided in containers 10, 20, 30, and 40, the separation step is performed by at least two stage pressure equalization and is performed by 5 or less valves 10A, 20A, 30A, and 40A per each of the plurality of the containers. This process comprises an adsorption step, a first pressure equalization step having at least two stages where the pressure decreases, a purge step, and a second pressure equalization step having at least two stages where the pressure increases.;COPYRIGHT: (C)2010,JPO&INPIT