Title:
GAS PURIFIER AND GAS PURIFICATION METHOD
Document Type and Number:
Japanese Patent JP2018083149
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gas purifier and a gas purification method capable of efficiently reducing the carbonyl sulfide concentration in a processing target gas even when the carbonyl sulfide concentration in the processing target gas is high.SOLUTION: A gas purifier 1 comprises a first COS converter 12 that performs a first conversion processing the ammonia of which is hydrogen cyanide contained in a gasification gas Gin a first predetermined temperature under the presence of a first catalyst, a second COS converter 14 that performs a second conversion processing the hydrogen sulfide of which is carbonyl sulfide contained in a gasification gas Gafter the first conversion processing under the presence of a second catalyst in a second predetermined temperature lower than the first predetermined temperature, a first cleaning column 13 that performs cleaning removal the ammonium by bringing the gasification gas Gin gas-liquid contact with the cleaning liquid, and a desulfurization column 16 that performs the absorption removal of the hydrogen sulfide in the gasification gas Gby bringing the gasification gas Gafter cleaning processing in gas-liquid contact with the absorption liquid.SELECTED DRAWING: Figure 1
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Inventors:
YOSHIDA KAORI
HIRATA HARUAKI
SUGA RIKIO
KAKESAKO SEIJI
HIRATA HARUAKI
SUGA RIKIO
KAKESAKO SEIJI
Application Number:
JP2016226753A
Publication Date:
May 31, 2018
Filing Date:
November 22, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
B01D53/14; C10K1/08; C10K1/34
Attorney, Agent or Firm:
Sakai International Patent Office