The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2025
Filed:
Jan. 13, 2023
Hangzhou Oxygen Plant Group Co., Ltd., Hangzhou, CN;
Yisong Han, Hangzhou, CN;
Fang Tan, Hangzhou, CN;
Xudong Peng, Hangzhou, CN;
Lei Yao, Hangzhou, CN;
Liangying Li, Hangzhou, CN;
Jiawei Wang, Hangzhou, CN;
HANGZHOU OXYGEN PLANT GROUP CO., LTD., Hangzhou, CN;
Abstract
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 COand air separation nitrogen, liquid nitrogen and liquid COare output and used for the storage unit and dry ice production respectively, and the liquid hydrogen is reheated and supplied to a downstream process.