Title: Ammonia coke-oven-gas desulfurization and decyanation technology by using hydrochinone phthalocyanine cobalt sulfonate as composite catalyst
Application Number: 96119502 Application Date: 1996.10.23
Publication Number: 1154998 Publication Date: 1997.07.23
Approval Pub. Date: Granted Pub. Date: 2001.05.16
International Classifi-cation: C10K1/00
Applicant(s) Name: Anshan Jiaohua Fire-Retardant Material Design Address: 114002
Inventor(s) Name: Dong Tianhe, Zhong Jinming
Attorney & Agent: TIAN QINGLU
Abstract:
     The present invention relates to a process for purifying coke-oven gas, which includes: using ammonia as alkali source; using hydroquinol; phtalocyanine, cobalt, sulfosalt and ferrous sulfate as composite catalyst; using said materials to form desulfurizing liquor; making the desulfurizing liquor and coke-oven gas counter flow and pass through such processes of chemical absorption reaction, catalytic chemical reaction and catalytic regeneration oxidation reaction to remove hydrogen sulfide and cyanogen from coke-oven gas. The temp. of the desulfurizing liquor and coke-oven gas entering into tower respectively are 30-40 deg.C and 25-35 deg.C, and the flow rate of the coke-oven gas is 0.3-0.6 m/s, liquid-gas ratio is 20-30 l/cu.m, regenerated air intensity is 90-115 cu m/sq.m.h and regeneration time is 15-25 min..
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