B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 59/00 (2006.01) B01D 59/04 (2006.01) B01D 59/26 (2006.01) B01D 59/50 (2006.01)
Patent
CA 2478207
A isotopic gas of high purity is obtained at low cast, wherein for example, in a case of separating 13CH4 from methane gas and obtaining 13CH4 of high purity, the enrichment of 13CH4, using the difference in adsorption of 12CH4 and 13CH4 onto an adsorbing material, is performed up to a certain concentration, and thereafter, 13CH4 is enriched by a separation method by distillation that uses the difference in boiling point.
Selon cette invention, un gaz isotopique de grande pureté est obtenu à faible coût. Par exemple, dans le cas de la séparation de ?13¿CH¿4 ?à partir de gaz méthane et de l'obtention de ?13¿CH¿4? d'une grande pureté, l'enrichissement de ?13¿CH¿4?, mettant en oeuvre la différence d'adsorption de ?12¿CH¿4? et de ?13¿CH¿4? sur un matériau adsorbant, est effectué jusqu'à une certaine concentration. Ensuite, ?13¿CH¿4? est enrichi à l'aide d'un procédé de séparation par distillation mettant en oeuvre la différence de point d'ébullition.
Hori Kazuhide
Inomata Kiyoto
Kohno Tadashi
Mikami Naoto
Kirby Eades Gale Baker
Tokyo Gas Co. Ltd.
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