Title:
OXYGEN CARRIER, METHOD FOR PRODUCING OXYGEN CARRIER, AND METHOD FOR PRODUCING GAS
Document Type and Number:
WIPO Patent Application WO/2022/065339
Kind Code:
A1
Abstract:
[Problem] To provide: an oxygen carrier which contains a metal oxide containing Cu (copper), in which the conversion efficiency of carbon dioxide to carbon monoxide is high and which can be used in, for example, a chemical looping method; a method for producing said oxygen carrier; and a method for producing a gas using said oxygen carrier. [Solution] This oxygen carrier contains a metal oxide represented by the formula Cu1-x(M)xOy (here, M is an element having a Pauling electronegativity of 1.3-2.3, x is a positive integer, and y is an integer between 1 and 4). In addition, one preferred embodiment of this oxygen carrier is characterized: by containing a metal oxide containing copper (Cu) and a second element such as zinc (Zn); and in that when the metal oxide is subjected to X-Ray diffraction measurements, at least one diffraction peak having a half value width of 0.7° or less is observed in an X-Ray diffraction profile.
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Inventors:
TAKIZAWA KOJI (JP)
SHINMEI KENICHI (JP)
BABA EISUKE (JP)
SHINMEI KENICHI (JP)
BABA EISUKE (JP)
Application Number:
PCT/JP2021/034706
Publication Date:
March 31, 2022
Filing Date:
September 22, 2021
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C01G3/00; C01B32/40; C01G9/00; C01G15/00; C01G33/00; C01G45/00; C01G49/00; C01G51/00; C01G53/00; B01J23/72; B01J23/745; B01J23/75; B01J23/755; B01J23/78; B01J23/80; B01J23/825; B01J23/83; B01J23/847; B01J23/889; B01J37/03; B01J37/08
Domestic Patent References:
| WO2014155116A1 | 2014-10-02 |
Foreign References:
| KR20200055939A | 2020-05-22 | |||
| KR101889654B1 | 2018-08-20 | |||
| CN110553275A | 2019-12-10 | |||
| US20110207069A1 | 2011-08-25 | |||
| US9492809B2 | 2016-11-15 | |||
| US9540236B2 | 2017-01-10 |
Other References:
HIGO TAKUMA, MAKIURA JUN-ICHIRO, KUROSAWA YUTARO, MURAKAMI KOTA, OGO SHUHEI, TSUNEKI HIDEAKI, HASHIMOTO YASUSHI, SATO YASUSHI, SEK: "Fast oxygen ion migration in Cu-In-oxide bulk and its utilization for effective CO2 conversion at lower temperature", CHEMRXIV, 18 June 2027 (2027-06-18), US , pages 1 - 5, XP009535459, ISSN: 2573-2293, DOI: 10.26434/chemrxiv.12973844.v1
IMOTO EIJI: "Development of the concepts of electronegativity", JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN, 1 January 1990 (1990-01-01), pages 2 - 15, XP055915506, DOI: 10.5059/yukigoseikyokaishi.48.2
JOURNAL OF CO2 UTILIZATION, vol. 17, 2017, pages 60 - 68
IMOTO EIJI: "Development of the concepts of electronegativity", JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN, 1 January 1990 (1990-01-01), pages 2 - 15, XP055915506, DOI: 10.5059/yukigoseikyokaishi.48.2
JOURNAL OF CO2 UTILIZATION, vol. 17, 2017, pages 60 - 68
Attorney, Agent or Firm:
KOMAI Shinji (JP)
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