Title:
タール汚れ洗浄剤及びタール汚れの洗浄方法
Document Type and Number:
Japanese Patent JP6913902
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a tar-contamination cleaning agent and a tar-contamination cleaning method allowing for efficient cleaning of tar-contamination in a portion contacting scrubber water for use in purification of coke oven gas.SOLUTION: The tar-contamination cleaning agent is a chemical for cleaning tar-contamination in a portion contacting with scrubber water for use in a coke gas purifying apparatus while stopping the operation of the coke gas purifying apparatus, and includes a non-ionic surface active agent composed of polyoxyethylene aliphatic amine. The tar-contamination cleaning method for cleaning tar-contamination in a portion contacting scrubber water for use in a coke gas purifying apparatus includes bringing the tar-contamination in the portion contacting scrubber water for use in the coke gas purifying apparatus into contact with a cleaning solution containing a nonionic surface active agent composed of polyoxyethylene aliphatic amine while stopping the operation of the coke gas purifying apparatus.SELECTED DRAWING: None
Inventors:
Kunihiro Fukae
Bando Masayuki
Iku Abe
Bando Masayuki
Iku Abe
Application Number:
JP2017039700A
Publication Date:
August 04, 2021
Filing Date:
March 02, 2017
Export Citation:
Assignee:
Katayama Chemical Research Institute Co., Ltd.
Narco Japan GK
Nippon Steel Corporation
Narco Japan GK
Nippon Steel Corporation
International Classes:
C11D1/44; C10K1/10; C11D17/08
Domestic Patent References:
| JP2014201697A | ||||
| JP2016079258A | ||||
| JP57049699A | ||||
| JP47008525A | ||||
| JP63255384A |
Attorney, Agent or Firm:
Patent business corporation Ikeuchi and Partners