C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
183/18, 48/45, 2
C01B 3/16 (2006.01) C01B 3/50 (2006.01) C01B 17/04 (2006.01) C10J 3/00 (2006.01) C10K 1/32 (2006.01) C10K 3/02 (2006.01)
Patent
CA 2036052
Disclosed is a process for purifying a high temperature reducing gas by removing sulfur compounds contained in the reducing gases by dry adsorption on an adsorbent. The process comprises subjecting the high temperature reducing gas to a catalytic CO-shift reaction in a reactor having a catalyst and equipped with a heat recovery means for controlling the reaction gas temperature while injecting steam into the high temperature reducing gas, in order to convert the content of CO in the high temperature reducing gas into CO2, effecting the removal of the sulfur compounds and CO2 by dry adsorption on adsorbent under control of the temperature of the gas by means of the heat recovery means of the reactor and separating the sulfur compounds from CO2. The sulfur compounds separated from CO2 may be supplied to a Claus process sulfur recovery unit to convert H2S in the sulfur compounds into elementary sulfur to recover it. Also disclosed is an integrated coal gasification combined cycle (IGCC) power plant, which comprises a CO-shift reactor for converting CO in a purified product gas into CO2 disposed between a gas purifier and a combustor of a gas turbine power generation unit, a means for removing CO2 and sulfur compounds from the coal gas in dry system and a sulfur compound separator for separating sulfur compounds from the gas left after the removal of CO2 and sulfur compounds.
Izumi Jun
Mitsuoka Shigeaki
Ogawa Kiichiro
Seto Toru
Suehiro Mitsugi
Fetherstonhaugh & Co.
Mitsubishi Jukogyo Kabushiki Kaisha
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