ADSORBENT AND METHOD FOR SEPARATING CARBON ISOTOPE USING THE SAME

Title:

ADSORBENT AND METHOD FOR SEPARATING CARBON ISOTOPE USING THE SAME

Document Type and Number:

Japanese Patent JP2004230267

Kind Code:

A

Abstract:

To obtain an adsorbent capable of separating carbon isotope from a material safely and stably supplied since harmful CO gas is not used and capable of easily separating/adsorbing a stable isotope 13C without using a large amount of coolant as in a low temperature distillation method, and to provide a method for separating the carbon isotope using the same.

An inorganic porous substance such as zeolite and meso-porous silicate is used as the adsorbent for the carbon isotope (13C isotope) in a lower hydrocarbon such as methane. The carbon isotope is separated to obtain 13C isotope by contacting the lower hydrocarbon containing at least the carbon isotope with an inorganic porous substance such as zeolite and meso-porous silicate and selectively adsorbing the carbon isotope (13C isotope) in the lower hydrocarbon.

Inventors:

ITO KOICHI
OTAKE KUNINOBU
UMEDA YOKO

Application Number:

JP2003020811A

Publication Date:

August 19, 2004

Filing Date:

January 29, 2003

Export Citation:

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Assignee:

TOKYO ELECTRIC POWER CO

International Classes:

B01D59/26; B01J20/10; B01J20/18; C07C7/12; C07C9/04; (IPC1-7): B01J20/18; B01D59/26; B01J20/10; C07C7/12; C07C9/04

Domestic Patent References:

JP2005519733A	2005-07-07
JPH10128071A	1998-05-19
JP2002003208A	2002-01-09
JPH10114508A	1998-05-06

Attorney, Agent or Firm:

Mitsuko Nakayama

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