| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To effectively heat and concentrate waste water discharged from a gas derivation system path deriving a produced gas from a steam gasification furnace, without generating scale at a heating surface, and further, to effectively utilize steam generated upon the heating and concentration of the waste water as steam for reaction in the steam gasification furnace. <P>SOLUTION: The waste water 10 discharged from a gas derivation system path 6 through which a gas 5 produced by a steam gasification furnace 1 where a raw material 2 and steam 4 are introduced, and gasification is performed is fed to a waste water evaporator 22. The gas 5 at the outlet of the steam gasification furnace 1 is subjected to heat exchange with purified water 25, and the generated steam 27 for heating is introduced into the waste water evaporator 22. The waste water 10 is heated, thus steam 30 for reaction is generated, so as to concentrate the waste water 10, and the steam 30 for reaction is fed to the steam gasification furnace 1 and is utilized for the gasification of the raw material 2. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
