High-low pressure coupling type pressure swing adsorption hydrogen extraction system and method

The invention discloses a high-low pressure coupling type pressure swing adsorption hydrogen extraction system and method, and solves the technical problems of high investment cost and high operation energy consumption of hydrogen separation equipment for high-low pressure raw gas with different hyd...

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Hauptverfasser:	LIU GUOLI, YANG YINLONG, ZHANG JIE, DING YI, BU LINGBING, WANG JIAN, SUN LEI, CHEN JIAN, WU WEI, ZHANG HONGYU, ZHENG JIANCHUAN, ZHANG CHONGHAI, YANG ZHONGGUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:	The invention discloses a high-low pressure coupling type pressure swing adsorption hydrogen extraction system and method, and solves the technical problems of high investment cost and high operation energy consumption of hydrogen separation equipment for high-low pressure raw gas with different hydrogen contents in the prior art. The hydrogen extraction system comprises a high-pressure pressure swing adsorption hydrogen extraction device and a low-pressure pressure swing adsorption hydrogen extraction device, and a low-pressure product hydrogen output pipe on the low-pressure pressure swing adsorption hydrogen extraction device is connected with each high-pressure adsorption tower in the high-pressure pressure swing adsorption hydrogen extraction device. According to the separation and purification method, a hydrogen storage step is added to a hydrogen extraction adsorption tower of a high-pressure pressure swing adsorption device, product hydrogen of a low-pressure pressure swing adsorption hydrogen extract