Power generation from sulphur-containing fuels
AssigneeEnflow Power Generation Inc.
InventorsCharles Q. Jia, Donald W. Kirk
Life of this patent
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Abstract
A process for obtaining energy values contained in a sulphur-containing carbonaceous fuel, the process comprising (a) treating a feed carbonaceous fuel having a first bound-sulphur content with an effective amount of an oxygen and SO2-containing gas in a reactor at an effective temperature to (i) provide elemental sulphur from the SO2, (ii) release exothermic heat, and (iii) produce a hot effluent gaseous steam containing the elemental sulphur and treated fuel having a second bound-sulphur content, (b) separating the elemental sulphur from the treated fuel; (c) collecting the elemental sulphur; (d) collecting the treated fuel; and (e) collecting the exothermic heat.
Claims14
A process for obtaining energy values contained in sulphur-containing carbonaceous fuel, said process comprising
- (a) burning a first sulphur-containing carbonaceous fuel in an oxygen-containing gas in a combustion boiler to produce
- (i) exothermic heat;
- and
- (ii) a first combustion oxygen-lean gaseous stream comprising sulphur dioxide;
- (b) collecting said exothermic heat;
- (c) feeding said first combustion gaseous stream to a reactor containing a second sulphur-containing carbonaceous fuel having a first bound-sulphur content;
- (d) reacting said second fuel with said first combustion gas in an oxygen-containing atmosphere at an effective temperature to
- (i) produce elemental sulphur from said SO2;
- (ii) release reactor exothermic heat;
- and
- (iii) produce a second combustion gaseous stream containing said elemental sulphur and a treated fuel having a second bound-sulphur content;
- (e) separating said elemental sulphur from said treated fuel;
- (f) collecting said elemental sulphur;
- (g) collecting said treated fuel;
- and
- (h) producing a separated combustion stream.
Dependencies are inferred from the claim text.