| 发明名称 |
GAS PURIFICATION METHOD AND GAS PURIFICATION DEVICE |
| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gas purification method by which sulfurization of a sulfur resistant CO shift catalyst converting CO into CO<SB>2</SB>under coexistence of H<SB>2</SB>S is made possible with simple piping without providing a special device in a treatment process for simultaneously removing H<SB>2</SB>S and CO<SB>2</SB>in a crude gas formed by gasifying a solid fuel containing carbon. <P>SOLUTION: The gas purification method includes: a shift step of converting CO contained in the crude gas formed by gasifying the solid fuel containing carbon into CO<SB>2</SB>by a catalyst; a gas absorbing step of absorbing CO<SB>2</SB>converted in the shift step and H<SB>2</SB>S in a purification gas by using an absorption liquid; a gas regenerating step of heating the absorption liquid in which CO<SB>2</SB>and H<SB>2</SB>S are absorbed in the gas absorbing step to eliminate CO<SB>2</SB>and H<SB>2</SB>S; a fuel supplying step of supplying a purified gas purified by absorbing CO<SB>2</SB>and H<SB>2</SB>S in the absorption liquid in the gas absorbing step to a gas turbine as a fuel gas; and an H<SB>2</SB>S recycling step of supplying H<SB>2</SB>S eliminated from the absorption liquid in the gas regenerating step to the shift step. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
| 申请公布号 |
JP2011168628(A) |
申请公布日期 |
2011.09.01 |
| 申请号 |
JP20100030887 |
申请日期 |
2010.02.16 |
| 申请人 |
HITACHI LTD |
发明人 |
SASAKI TAKASHI;AKIYAMA TOMOKO |
| 分类号 |
C10K1/08;B01D53/14;C01B3/16;C01B3/52;C10K3/04 |
主分类号 |
C10K1/08 |
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