| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gas refining method, which can remove dimethylsiloxane from a methane-containing gas over a long period of time, and to provide a method for utilizing refined gas. <P>SOLUTION: When a methane-containing gas generated in the anaerobic fermentation of organic waste such as garbage or sewage sludge is supplied to and passed through a packed bed of activated carbon having pores with a mean pore size of 2.0 to 4.0 nm and a volume of pores with a size of not more than 1.0 nm of not more than 0.2 ml/g, dimethylsiloxane contained in the methane-containing gas is effectively adsorbed by the activated carbon. As a result, even if the methane-containing gas passed through the packed bed of activated carbon is burnt, the amount of SiO<SB>2</SB>generated is small. Therefore, the methane-containing gas can be utilized as fuel for a gas engine or the like, e.g., for power generation which requires long-time stable operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
