Generating steam from carbonaceous material
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United States of America Patent
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Nov 22, 2016
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N/A
app pub date -
Jan 21, 2011
filing date -
Jan 21, 2010
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Abstract
A system and method of generating steam comprising providing a continuous supply of coal, combusting the coal in a primary processing chamber in the presence of oxygen and water to provide a first product gas stream, recovering heat from the first product gas stream in a first heat recovery steam generator to produce a first steam output, processing the first product gas stream in a secondary processing chamber in the presence of oxygen and water to provide a second product gas stream, recovering heat from the second product gas stream in a second heat recovery steam generator to produce a second steam output, and combining the first steam output and the second steam output. Preferably, the combined steam output is used to drive a steam turbine and the turbine is coupled to a generator.
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