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Title:
CHEMICAL HEAT-STORAGE MATERIAL AND METHOD FOR MANUFACTURING SAME, AND CHEMICAL HEAT PUMP AND METHOD FOR OPERATING SAME
Document Type and Number:
WIPO Patent Application WO/2019/004313
Kind Code:
A1
Abstract:
Provided is a chemical heat-storage material that stores heat using a dehydration reaction of a hydroxide of an alkaline earth metal, said chemical heat-storage material exhibiting a higher reaction rate and enabling heat storage at a lower temperature. Also provided is a chemical heat pump for using said chemical heat-storage material to store and emit heat. The chemical heat-storage material contains an oxide and/or a hydroxide of an alkaline earth metal, and an acid, the acid content being 0.05–30mol% with respect to the alkaline earth metal. The chemical heat pump (10) uses an endothermic dehydration reaction and an exothermic hydration reaction, and comprises: a reactor (11) that accommodates the chemical heat-storage material (21) containing an oxide and/or hydroxide of an alkaline earth metal; a heat-supply means (12) that is thermally connected to the reactor and supplies heat from outside to the chemical heat-storage material; a heat-recovery means (13) that is thermally connected to the reactor and extracts heat created from the chemical heat-storage material to the outside; a storage tank (14) that stores water (22); a connecting pipe (15) that connects the reactor and the storage tank, and through which water passes; and an acid-supply mechanism (17) that supplies acid into the chemical heat pump.

Inventors:
OKADA, Shota
RYU, Junichi
Application Number:
JP2018/024453
Publication Date:
January 03, 2019
Filing Date:
June 27, 2018
Export Citation:
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Assignee:
TATEHO CHEMICAL INDUSTRIES CO., LTD. (974 Aza Kato, Kariya Ako-sh, Hyogo 39, 〒6780239, JP)
NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY (1-33, Yayoi-cho Inage-ku, Chiba-sh, Chiba 22, 〒2638522, JP)
International Classes:
F28D20/00; C01F5/14; C09K5/16; F25B17/08
Domestic Patent References:
WO2008041542A12008-04-10
Foreign References:
JP2015215155A2015-12-03
JP2016074597A2016-05-12
JP2004131413A2004-04-30
JP2010223575A2010-10-07
JP2014052181A2014-03-20
JPS61133284A1986-06-20
JP2009186119A2009-08-20
JP2007309561A2007-11-29
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (3rd Fl, Bo-eki Bldg. 123-1, Higashimachi, Chuo-ku, Kobe-sh, Hyogo 31, 〒6500031, JP)
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