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. 12, 2005
Filed:
Aug. 29, 2002
Akihiro Nakamura, Kofu, JP;
Masato Kawai, Yokohama, JP;
Masayoshi Hayashida, Kitakoma-gun, JP;
Yoshinori Watanabe, Iwaki, JP;
Shinichi Marumo, Kitakoma-gun, JP;
Akihiro Nakamura, Kofu, JP;
Masato Kawai, Yokohama, JP;
Masayoshi Hayashida, Kitakoma-gun, JP;
Yoshinori Watanabe, Iwaki, JP;
Shinichi Marumo, Kitakoma-gun, JP;
Taiyo Nippon Sanso Corporation, Tokyo, JP;
Abstract
An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen is MSC wherein an oxygen and nitrogen separation ratio α and a ratio (t/t) of a time trequired for adsorbing 50% of the oxygen equilibrium adsorption amount and a time trequired for adsorbing 95% of the oxygen equilibrium adsorption amount satisfy the inequality()<×(α−)α≧The amount of adsorbent used with respect to a predetermined amount of nitrogen generated can be reduced since a method is carried out which uses this adsorbent to produce nitrogen by separating nitrogen from the mixed gas of oxygen and nitrogen by means of a PSA method. By this method, it is possible to reduce the cost of the apparatus and reduce and miniaturize the scale of the apparatus, and the power consumption amount can be reduced.