METHOD AND DEVICE FOR CARBON CAPTURE COUPLED HYDROGEN PRODUCTION

WIPO Patent Application WO/2024/016114

A1

The present invention provides a method and device for carbon capture coupled hydrogen production. The method comprises: capturing low concentration CO2 by using an alkali metal hydroxide solution to obtain a low concentration CO2 absorption solution, and capturing high concentration CO2 by using a first part of the low concentration CO2 absorption solution to obtain a high concentration CO2 absorption solution; and taking a second part of the low concentration CO2 absorption solution as a cathode solution, the high concentration CO2 absorption solution as an anode solution, and a non-ionic diaphragm as a diaphragm for electrolysis. According to the method of the present invention, capture of CO2 in a wide concentration range can be realized, the non-ionic diaphragm is used for electrolysis to realize regeneration and coupled hydrogen production of the absorption solution, the capture cost of CO2 in a wide concentration range can be reduced, by-products of H2 and O2 are obtained, and the hydrogen production cost is reduced.

WO/2010/066025	ELECTROCHEMICAL ENERGY STORAGE AND DISCHARGE
WO/2022/243845	PHOTO-ELECTROCHEMICAL CELL AND CORRESPONDING APPARATUS
WO/2022/112732	SOLAR POWER INSTALLATION

LV XIJIA (CN)
ZHUANG SHUXIAN (CN)
ZHANG JUNWEI (CN)
ZHANG HAO (CN)
ZHAO TU (CN)
LIU YIFAN (CN)
CHEN SHEN (CN)
BAI YAKUI (CN)

PCT/CN2022/106277

January 25, 2024

July 18, 2022

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XECA TURBO TECH BEIJING CO LTD (CN)

C25B1/04

CN108636069A	2018-10-12
CN104131311A	2014-11-05
CN101068610A	2007-11-07
CN103227339A	2013-07-31
CN112499651A	2021-03-16
CN113549929A	2021-10-26
CN114645290A	2022-06-21
CN114703493A	2022-07-05

KANGXIN PARTNERS, P.C. (CN)

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