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Title:
METHOD OF REMOVING OXYGEN FROM CRUDE CARBON MONOXIDE GAS AND METHOD OF PURIFYING CARBON MONOXIDE GAS
Document Type and Number:
WIPO Patent Application WO/2019/171882
Kind Code:
A1
Abstract:
Provided is a method of removing oxygen from a crude carbon monoxide gas while avoiding metal contamination as much as possible. This oxygen removing method removes oxygen from a crude carbon monoxide gas that comprises oxygen as an impurity by contacting the gas with activated carbon (1a) not carrying metal in a catalyst tank (1). Furthermore, the produced gas after oxygen removal is contacted with an alkali aqueous solution (2a) to absorb and remove carbon dioxide, thereby obtaining a purified carbon monoxide gas.

Inventors:
YOKONO TAKASHI (JP)
KUWANA AKIHIRO (JP)
Application Number:
PCT/JP2019/004705
Publication Date:
September 12, 2019
Filing Date:
February 08, 2019
Export Citation:
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Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C01B32/40; B01J21/18
Foreign References:
JPS63251496A1988-10-18
JPS62132543A1987-06-15
JPH02189389A1990-07-25
JP2000034115A2000-02-02
Attorney, Agent or Firm:
YOSHIDA Minoru et al. (JP)
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