Gas separation: processes – Solid sorption – Including reduction of pressure
Reexamination Certificate
2005-07-12
2005-07-12
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
Solid sorption
Including reduction of pressure
C095S138000, C095S903000, C096S108000, C502S416000
Reexamination Certificate
active
06916358
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 (t95/t50) of a time t50required for adsorbing 50% of the oxygen equilibrium adsorption amount and a time t95required for adsorbing 95% of the oxygen equilibrium adsorption amount satisfy the inequalityin-line-formulae description="In-line Formulae" end="lead"?(t95/t50)<0.4×(α−24)α≧35.in-line-formulae description="In-line Formulae" end="tail"?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.
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Magazine “Kagaku Sochi (Chemical Apparatus)” 1983 (Showa 58), No. 8, p. 39.
Hayashida Masayoshi
Kawai Masato
Marumo Shinichi
Nakamura Akihiro
Watanabe Yoshinori
Spitzer Robert H.
Taiyo Nippon Sanso Corporation
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