Method for generating electrical energy wherein carbonaceous fuel is gasified
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United States of America Patent
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Apr 30, 2013
Grant Date -
Oct 25, 2012
app pub date -
Apr 27, 2012
filing date -
Oct 27, 2009
priority date (Note) -
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Abstract
A method for generating electrical energy, wherein a carbonaceous fuel is gasified to a combustible gas, the combustible gas being combusted to drive an apparatus chosen from a gas turbine and a gas engine. Relatively hot exhaust gas from the apparatus is passed along a heat exchanger for removing heat from the relatively hot exhaust gas results in relatively cold exhaust gas after passing the heat exchanger. A kaolin or metakaolin-containing sorbent and a source of active free silica are introduced after the apparatus to remove mercury from the relatively hot exhaust gas, the relatively hot exhaust gas having a temperature of at least 800° C.
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