The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2012
Filed:
Apr. 11, 2008
Masaya Suzuki, Ibaraki, JP;
Chieko Ikeda, Ibaraki, JP;
Koji Tajiri, Aichi, JP;
Keiichi Inukai, Aichi, JP;
Masaki Maeda, Tokyo, JP;
Masaya Suzuki, Ibaraki, JP;
Chieko Ikeda, Ibaraki, JP;
Koji Tajiri, Aichi, JP;
Keiichi Inukai, Aichi, JP;
Masaki Maeda, Tokyo, JP;
Abstract
Provided is an adsorbent adapted to adsorb carbon dioxide by increasing the pressure, and to carry out 10% or more adsorption and adsorption of the adsorbed carbon dioxide by lowering the pressure at atmospheric pressure or higher in a range of 100 to 900 kPa without vacuuming or the like. As a result of using amorphous aluminum silicate with a Si/Al ratio of 0.7 to 1.0 and having a peak in the vicinity of −78 ppm and −87 ppm in aSi solid NMR spectrum, adsorption and desorption of 10 wt % or more can be performed in a range of 100 to 900 kPa, and this can be used as a carbon dioxide adsorbent mainly in the pressure swing adsorption method.