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US 9,987,591 B2Granted
Method for removing sulphur dioxide from gas streams, using titanium dioxide as catalyst
AssigneeLe Gaz Integral SAS
InventorPeter Frank Cross
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Abstract
The present invention relates to a method for removing sulphur dioxide from gaseous effluent, wherein a mixture of gaseous outlet gasses or gaseous effluent includes sulphur dioxide and carbon monoxide, and wherein, to perform a catalytic reduction, a catalyst is used to catalyze a reaction between carbon monoxide and sulphur dioxide to produce carbon dioxide and sulphur.
Claims21
A method comprising removing sulphur dioxide from gaseous effluent using a Claus catalyst,
- wherein the gaseous effluent includes sulphur dioxide, hydrogen and carbon monoxide,
- wherein the Claus catalyst comprises at least 90% by weight of titanium dioxide to catalyse a catalytic reaction between carbon monoxide and sulphur dioxide to produce carbon dioxide and sulphur to remove sulphur dioxide from the gaseous effluent,
- wherein the catalytic reaction is performed at a gauge pressure of from 0.1 bar(g) to 1 bar(g), and wherein the catalytic reaction occurs at a temperature from about 350° C. to about 450° C.
A method for removing sulphur dioxide from gaseous effluent by performing a catalytic reduction using a Claus catalyst:
- wherein the gaseous effluent includes sulphur dioxide, hydrogen and carbon monoxide,
- wherein the catalytic reduction is performed at a gauge pressure of from 0.1 bar(g) to 1 bar(g),
- wherein the catalytic reduction is performed using titanium dioxide to catalyse a reaction between carbon monoxide and sulphur dioxide to produce carbon dioxide and sulphur such that a majority of the carbon monoxide reacts, and
- wherein the catalytic reduction is performed at a temperature from about 350° C. to about 450° C.
1 more element
Dependencies are inferred from the claim text.