| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coal gasification system capable of reducing the amount of carbon dioxide recovered by a carbon dioxide recovering device. <P>SOLUTION: The coal gasification system 1 for manufacturing at least hydrogen gas and carbon monoxide gas by gasifying coal includes: a coal supply device 11 for pneumatically conveying coal; a gasification reactor 12 which receives coal supplied by the coal supply device and generates produced gas containing carbon dioxide gas; a carbon dioxide recovering device 17 which separates the produced gas to thin gas of low-concentration carbon dioxide gas and rich gas of high-concentration carbon dioxide gas as compared to the thin gas; a thin gas flow path 21 for conveying the thin gas therethrough; and a rich gas flow path 22 for conveying the rich gas therethrough; wherein either one of the thin gas conveyed through the thin gas flow path and the rich gas conveyed through the rich gas flow path can be supplied to the coal supply device. <P>COPYRIGHT: (C)2013,JPO&INPIT |
