Patent ID: 8974554
Filing Date: 2015-03-10
Classification: C10J,F23C,F23G

Abstract:
1. A fluidized-bed gasification facility comprising: a fluidized-bed combustion furnace configured to burn char to heat a bed material, a separator in fluid communication with and disposed downstream of said fluidized-bed combustion furnace and configured to separate hot fluid from said fluidized-bed combustion furnace into the bed material and an exhaust gas, a fluidized-bed gasification furnace connected to and disposed downstream of said separator, into which fluidized-bed gasification furnace the bed material separated in said separator is introduced via a downcomer, into which fluidized-bed gasification furnace raw material is introduced and where the raw material is gasified by a fluidized bed fed with a gasifying agent and a produced gas is taken out, a circulation passage connected to said fluidized-bed gasification furnace and configured to circulate char produced upon the gasification of the raw material in said fluidized-bed gasification furnace and the bed material to the fluidized-bed combustion furnace, a dispersion section extending along width of a bed-material-introduction-side wall constituting one of side surfaces of said fluidized-bed gasification furnace and configured to receive the bed material from said downcomer, fluidizing-gas introduction means for blowing a fluidizing gas into said dispersion section to fluidize the bed material in the dispersion section, and a supply section configured to supply the bed material in said dispersion section into the fluidized-bed gasification furnace evenly throughout the width on a bed-material-introduction side, wherein said supply section comprises a plurality of supply pipes arranged along the width of the bed-material-introduction-side wall and leading from the dispersion section to the fluidized-bed gasification furnace.