CO2および1種以上の炭化水素および/または窒素酸化物で汚染されたガス流を凝集したゼオライト系吸着剤に吸着させることにより精製する方法

Title:

CO2および1種以上の炭化水素および/または窒素酸化物で汚染されたガス流を凝集したゼオライト系吸着剤に吸着させることにより精製する方法

Document Type and Number:

Japanese Patent JP2007515279

Kind Code:

A

Abstract:

Purifying a gas stream containing carbon dioxide and impurities (hydrocarbons and/or nitrogen oxides and optionally water) comprises contacting the gas stream with adsorbent granules to adsorb carbon dioxide and impurities, desorbing the impurities and regenerating the adsorbent. The adsorbent comprises either a sodium LSX zeolite or a mixture of at least 20 wt.% of a sodium X zeolite and up to 80 wt.% of a sodium LSX zeolite. Purifying a gas stream containing carbon dioxide and other impurities (hydrocarbons and/or nitrogen oxides and optionally water) comprises contacting the gas stream with adsorbent granules to adsorb carbon dioxide and impurities, desorbing the impurities and regenerating the adsorbent. The adsorbent comprises either at least 70 wt.% of a LSX zeolite in at least 90% sodium form, up to 5 wt.% inert binder and optionally up to 25 wt.% other zeolite(s) or at least 70 wt.% of a mixture of at least 20 wt.% of an X zeolite in at least 90% sodium form and up to 80 wt.% of a LSX zeolite in at least 90% sodium form, up to 5 wt.% inert binder and optionally up to 25 wt.% other zeolite(s).

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Inventors:

Liyutsu, Cecil
Schmitt, Paul-Guillaume

Application Number:

JP2006546136A

Publication Date:

June 14, 2007

Filing Date:

December 16, 2004

Export Citation:

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Assignee:

Susa S Are

International Classes:

B01J20/18; B01D53/02; B01D53/04; B01D53/047; B01D53/56; B01D53/62; B01D53/72; B01J20/34; C01B39/22

Domestic Patent References:

JP2002519188A	2002-07-02
JP2000210557A	2000-08-02
JP2002505942A	2002-02-26
JP2003511218A	2003-03-25
JP2001347123A	2001-12-18
JP2003246606A	2003-09-02
JPH11253736A	1999-09-21

Foreign References:

EP0995477B1	2002-07-03
EP1064978A1	2001-01-03

Attorney, Agent or Firm:

Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura

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