| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device and method for enriching the methane contained in a mixed gas to produce a high concentration methane gas. <P>SOLUTION: This piping line system is equipped with a mixed gas-introducing part 1 for introducing the mixed gas containing methane, a carrier gas-feeding part 2 for feeding the carrier gas, a dehydrating part 3 for removing water from the mixed gas, a carbon dioxide-removing part 4 for removing carbon dioxide from the mixed gas and a methane-capturing part 5 capable of capturing methane from the mixed gas removed with water and carbon dioxide and holding, and also capable of releasing the held methane. And the carrier gas-feeding part 2, mixed gas-introducing part 1, dehydrating part 3, carbon dioxide-removing part 4 and methane-capturing part 5 are joined in a series so as to convey the mixed gas introduced from the mixed gas-introducing part 1 through in the order of the dehydrating part 3, carbon dioxide-removing part 4 and methane-capturing part 5 by the carrier gas. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
