Fuel and related compositions – Coal treating process or product thereof – Removal of undesirable
Patent
1992-04-30
1994-11-29
Medley, Margaret
Fuel and related compositions
Coal treating process or product thereof
Removal of undesirable
44580, 44604, 110342, 110343, 110345, 423235, 423242, 423244A, 423244R, 4232421, 42324407, 42324408, C10L 900, C10L 1000, C10L 500
Patent
active
053686179
ABSTRACT:
An improved process for reducing sulfur oxide emissions from the combustion of coal is disclosed wherein a fuel mixture comprising calcium-containing sorbent and coal is fed to the burners and sulfur oxides react with calcium from the sorbent in a high temperature sulfur capture region, followed by additional sulfur capture in a lower temperature, high humidity sulfur capture region prior to separation of particulates from the flue gas. Sulfur capture using calcium-containing sorbents can be combined with aggressive coal beneficiation techniques to further enhance reduction of sulfur oxide emissions. The process of the invention provides a process for reducing sulfur oxides that efficiently uses calcium-containing sorbents to enhance sulfur capture while reducing the need for expensive equipment or process modifications.
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Medley Margaret
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