| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a carbon dioxide membrane separation system in a coal gasification process which, in addition to having no absorbent regeneration process required for a conventional carbon dioxide absorption method, can concentrate a fuel gas, gasified from coal, by separating carbon dioxide at high temperature to enable supply of the obtained fuel gas to a gas turbine, and coal gasification combined power generation equipment using the carbon dioxide membrane separation system. <P>SOLUTION: In the carbon dioxide membrane separation system in a coal gasification process, a mixed gas of carbon dioxide (CO<SB POS="POST">2</SB>) and hydrogen (H<SB POS="POST">2</SB>) in a high-temperature and high-pressure state generated from a water gas shift reactor by a water gas shift reaction is introduced into a zeolite membrane module having a carbon oxide removing zeolite membrane while keeping the high-temperature and high-pressure state, thereby removing carbon dioxide and generating a fuel gas rich in hydrogen. The fuel gas rich in hydrogen in the high-temperature and high-pressure state discharged from the zeolite membrane module is supplied to a gas turbine of the power generation equipment while keeping the high-temperature and high-pressure state. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
