| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of separating an isotope gas based on differences in the rates of adsorption to an adsorbing material, without the high-cost helium. <P>SOLUTION: In a gas treatment apparatus, a methane gas containing an isotope gas is supplied to a column 10 filled with an adsorbing material 20, while a carrier gas is made to flow, and the exhaust gas from the column 10 is collected in a collection tank 50 for a specified time immediately after the breakthrough time to concentrate the 13C methane. A molecular sieve is used as the adsorbing material 20, and nitrogen as the carrier gas. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
