Method for desulfurizing a fluid and methods for operating a coal combustion system
AssigneeGeneral Electric Company
InventorChandrashekhar Sonwane
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Abstract
A method for desulfurizing a fluid comprising at least one sulfur compound is provided. The method includes providing an oxide composition comprising at least one byproduct oxide from a process for removing one or more impurities from coal and contacting the oxide composition with the fluid. The oxide composition reacts with the at least one sulfur compound to form a solid precipitate. Methods for operating a coal combustion system are also provided.
Claims20
A method for desulfurizing a fluid comprising at least one sulfur compound, the method comprising:
- providing an oxide composition comprising at least one byproduct oxide produced by a process for removing one or more impurities from coal;
- and
- contacting the oxide composition with the fluid, wherein the oxide composition reacts with the at least one sulfur compound to form a solid precipitate.
A method for operating a coal combustion system, the method comprising:
- providing coal comprising a plurality of impurities;
- removing one or more of the impurities from the coal to produce at least one byproduct oxide, the at least one byproduct oxide comprising one or more of the impurities, a product of a reaction between one or more of the impurities and at least one reactant, or both;
- separating the at least one byproduct oxide from the coal;
- combusting the coal to produce a flue gas comprising at least one sulfur compound;
- and
- contacting the at least one byproduct oxide with the flue gas, wherein the at least one byproduct oxide reacts with the at least one sulfur compound to form a solid precipitate.
A method for operating a coal combustion system, the method comprising:
- providing coal comprising a plurality of impurities;
- reacting a fluoride compound with an acid to produce hydrofluoric acid and a byproduct oxide;
- contacting the hydrofluoric acid with the coal to remove one or more of the impurities from the coal;
- separating the hydrofluoric acid from the coal;
- combusting the coal to produce a flue gas comprising at least one sulfur compound;
- and
- contacting the byproduct oxide with the flue gas, wherein the byproduct oxide reacts with the at least one sulfur compound to form a solid precipitate.
Dependencies are inferred from the claim text.