Method of and an apparatus for gasifying carbonaceous material
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United States of America Patent
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May 24, 2011
Grant Date -
Oct 16, 2008
app pub date -
May 15, 2006
filing date -
May 18, 2005
priority date (Note) -
Expired
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Abstract
A method of and an apparatus for gasifying carbonaceous material, the apparatus including a gasification reactor, to which oxygen-containing primary gas and secondary gasification gas are introduced, whereby a portion of the material to be gasified is gasified to product gas, residual carbon contained in the fly ash extracted from the product gas is combusted in a cyclone combustor, and the exhaust gas from the cyclone combustor is guided to above the bottom level of the gasification reactor to act as secondary gasification gas.
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