| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for refining coal-gasified gas, the method retrieving carbon dioxide in its liquid state simultaneously with hydrogen gas from the coal-gasified gas, and to provide a system for the method. <P>SOLUTION: The system comprises the following process: in refining a feedstock gas 1 obtained by gasifying coal, first, moisture in the feedstock gas 1 is removed by the molecular sieve of a moisture remover 20; next, using a liquefier 30, carbon dioxide 3 in a liquid state is retrieved from the feedstock gas freed from moisture; finally, using a pressure swing adsorber 40, a highly refined hydrogen gas 4 is retrieved from the feedstock gas freed from the carbon dioxide. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
