Photoelectric hydrogen production energy storage and cold energy recovery coupled dry ice production device and use method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12215921
APP PUB NO 20230228485A1
SERIAL NO

18154040

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Abstract

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A photoelectric hydrogen production energy storage and cold energy recovery coupled dry ice production device and a use method are disclosed. The device comprises a photoelectric conversion liquid hydrogen energy storage unit, photoelectricity participates in electrolysis of water in the storage unit to prepare hydrogen, and surplus hydrogen meeting downstream process requirements is liquefied in the unit; liquid hydrogen is output, so that intermittent photoelectric energy is converted into hydrogen energy to be stored. When hydrogen production through electrolysis of water is insufficient but industrial hydrogen is continuously used, high-grade and low-grade cold energy of low-temperature liquid hydrogen serving as cold sources in the unit is recovered from industrial tail gas purified CO2 and air separation nitrogen, liquid nitrogen and liquid CO2 are output and used for the storage unit and dry ice production respectively, and the liquid hydrogen is reheated and supplied to a downstream process.

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Patent Owner(s)

  • HANGZHOU OXYGEN PLANT GROUP CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Han, Yisong Hangzhou, CN 9 1
Li, Liangying Hangzhou, CN 5 1
Peng, Xudong Hangzhou, CN 11 1
Tan, Fang Hangzhou, CN 13 1
Wang, Jiawei Hangzhou, CN 51 31
Yao, Lei Hangzhou, CN 86 1896

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