Sorbents for coal combustion
First Claim
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1. A method of preparing a fuel for combustion, comprising adding a mercury sorbent and a sulfur sorbent onto coal, wherein the mercury sorbent comprises an iodine compound, and wherein the sulfur sorbent comprises an aluminosilicate clay and a basic powder that contains calcium.
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Abstract
Sorbent compositions containing halogen and calcium are added to coal to mitigate the release of sulfur and/or other harmful elements, including mercury, into the environment during combustion of coal containing natural levels of mercury.
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Citations
16 Claims
- 1. A method of preparing a fuel for combustion, comprising adding a mercury sorbent and a sulfur sorbent onto coal, wherein the mercury sorbent comprises an iodine compound, and wherein the sulfur sorbent comprises an aluminosilicate clay and a basic powder that contains calcium.
- 5. A fuel composition comprising coal, an added iodine compound, added SiO2, and added Al2O3.
- 11. A method of operating a coal burning facility with lowered emissions of sulfur and mercury into the atmosphere, the method comprising adding sorbent components into the coal burning system during combustion of coal, wherein the sorbent components comprise iodine, silica, alumina, and calcium.
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