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    • 9. 发明授权
    • Process for the reduction of carbon monoxide and carbonyl sulfide emissions
    • 降低一氧化碳和羰基硫化物排放的方法
    • US06602819B2
    • 2003-08-05
    • US09754609
    • 2001-01-04
    • Dale R CoulsonKostantinos Kourtakis
    • Dale R CoulsonKostantinos Kourtakis
    • B01J2300
    • B01D53/864B01D53/8606B01J23/40B01J23/66B01J23/685B01J23/72B01J23/8876B01J23/89B01J37/32Y10S502/506Y10S502/514
    • Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas contaminated with CO and COS, and an oxygen-containing gas, is contacted with a suitable catalyst. The catalyst may be a metal oxide catalyst containing bismuth, cobalt and nickel, such as metal oxides containing oxides of the formula, (BiaCobNic)yMo1−yOz, where a, b and c are from 0 to 1, y is from 0.01 to 0.75 and z is from 1.125 to 4.875; a xerogel or aerogel catalyst containing Au, Rh, Ru and Co in aluminum oxide/oxyhydroxide matrices, such as those of the formula [(Au1−(w+d)RhwRud)eCofAlO1.5−u(OH)2u]1−(e+f), where w and d are from 0 to 1, e is from 0.001 to 0.2, f is from 0 to 0.2 and u is from 0 to 1.5; or a supported metal catalyst that contains at least one metal from the group Pd, Rh, Ru and Cu. In the latter case, the catalyst support contains alumina or carbon. A catalyst composite of Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide may also be used, such as a composites containing Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide of the formula (Au1−(w+d)RhwRud)eCrf(CegLa1−g)1−(e+f)Ov, where w and d are from 0 to 1, e is from 0.001 to 0.2, f is from 0 to 0.2, g is from 0 to 1 and v is from 1.1 to 2.4.
    • 一氧化碳和羰基硫化物的排放在制造过程中减少,包括四氯化钛生产过程。 被CO和COS污染的气体和含氧气体与合适的催化剂接触。 催化剂可以是含有铋,钴和镍的金属氧化物催化剂,例如含有下式的氧化物的金属氧化物(BiaCobNic)yMo1-yOz,其中a,b和c为0至1,y为0.01至0.75 z为1.125〜4.875; 在氧化铝/羟基氧化物基质中含有Au,Rh,Ru和Co的干凝胶或气凝胶催化剂,例如式[(Au1-(w + d)RhwRud)eCofAlO1.5-u(OH)2u] 1-( e + f),其中w和d为0至1,e为0.001至0.2,f为0至0.2,u为0至1.5; 或包含至少一种Pd,Rh,Ru和Cu族金属的负载金属催化剂。 在后一种情况下,催化剂载体包含氧化铝或碳。 还可以使用Au,Rh,Ru和Cr以及氧化铈和氧化镧的催化剂复合物,例如包含Au,Rh,Ru和Cr的复合材料,以及式(Au1-(w))的氧化铈和氧化镧 + d)RhwRud)eCrf(CegLa1-g)1-(e + f)Ov,其中w和d为0至1,e为0.001至0.2,f为0至0.2,g为0至1 v为1.1〜2.4。