Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1995-05-05
1996-08-20
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
423235, 42324402, 42324409, 423246, 95137, 588205, B01D 5346, B01D 5381, B01D 5396
Patent
active
055476481
ABSTRACT:
Removing sulfur oxide and carbon monoxide in a flue gas stream by combusting fuel in the combustor with a reduced amount of oxygen to partially convert carbon monoxide therein to carbon dioxide and sufficient to convert all sulfur-containing species in the flue gas stream to sulfur oxide and thus form a sulfur oxide enriched gas stream having between at least about 500 ppm carbon monoxide. The sulfur oxide enriched gas stream is contacted with a solid adsorbent bed for adsorbing the sulfur oxides in the form of inorganic sulfates and/or sulfur oxides. The solid adsorbent contains a catalytic oxidation promoter for oxidizing the carbon monoxide gas stream to carbon dioxide, thus forming a sulfur oxide and carbon monoxide depleted stream for disposal. The adsorbent bed is then contacted with a reducing gas stream for regenerating the adsorbent bed to form a hydrogen sulfide and/or sulfur dioxide bearing stream.
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Buchanan John S.
Mathias Mark F.
Sodomin, III Joseph F.
Teitman Gerald J.
Bleeker Ronald A.
Harris Gerald L.
Keen Malcolm D.
Mobil Oil Corporation
Straub Gary P.
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