Fluidized-bed gasification method and facility therefor
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United States of America Patent
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Mar 10, 2015
Grant Date -
May 26, 2011
app pub date -
Jun 12, 2009
filing date -
Jun 20, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are a fluidized-bed combustion furnace 1, a separator 8 for separation into bed material 11 and an exhaust gas, a fluidized-bed gasification furnace 40 into which the bed material 11 is introduced through a downcomer 46 and into which raw material is introduced, a circulation passage for circulating char and the bed material 11 to the combustion furnace 1, a dispersion section 43 extending along a width of a bed-material-introduction-side wall 41 of the gasification furnace 40 to receive the bed material 11 from the downcomer, fluidizing-gas introduction means 47 for blowing fluidizing gas into the dispersion section 43 to fluidize the bed material 11 in the section 43, and a supply section 48 for supplying the bed material 11 in the dispersion section 43 to the fluidized-bed gasification furnace 40 substantially evenly throughout the width on the bed-material-introduction side.
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