Chemistry of inorganic compounds – Carbon or compound thereof – Oxygen containing
Patent
1992-03-19
2000-01-04
Lund, Valerie
Chemistry of inorganic compounds
Carbon or compound thereof
Oxygen containing
423428, B01J 800, C01B 3118
Patent
active
060106751
ABSTRACT:
The concentration of carbon monoxide in a gaseous medium is reduced by selective catalytic oxidation in the presence of gaseous oxygen by passing the gaseous medium through a catalyst capable of oxidizing carbon monoxide in an exothermic reaction at temperatures within a given temperature range and by controlling the temperatures encountered in the catalyst in such a manner that the exothermic reaction takes place first above a threshold temperature below which the catalyst would be rapidly inactivated at the relatively high carbon monoxide concentrations present in the gaseous medium as it enters the catalyst, and subsequently, after the carbon monoxide concentration has been reduced to an acceptable level, at less than the threshold temperature to further reduce the carbon monoxide concentration to a desired minimum level below that achievable at temperatures above the threshold temperature.
REFERENCES:
patent: 4877592 (1989-10-01), Matros et al.
Marion Brown, et al., "Purifying H.sub.2 by . . . Selective Oxidation of CO" Industrial & Engineering Chemistry, vol. 52, #10, Oct. 1960, pp. 841-844.
Holger Anderson, "Removing CO from Ammonia Synthesis Gas", Industrial & Engineering Chemistry, vol. 52, #10, Aug. 1961, pp. 645-646.
Lesieur Roger R.
Schroll Craig R.
Trocciola John C.
International Fuel Cells Corp.
Lund Valerie
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