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AssigneeTaiyo Nippon Sanso Corporation
InventorsAkihiro Nakamura, Masato Kawai, Masayoshi Hayashida, Yoshinori Watanabe, Shinichi Marumo
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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 t50 required for adsorbing 50% of the oxygen equilibrium adsorption amount and a time t95 required for adsorbing 95% of the oxygen equilibrium adsorption amount satisfy the inequality (t95/t50)<0.4×(α−24)α≧35. 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.
An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen, the adsorbent being a MSC, wherein a oxygen and nitrogen separation ratio α (ratio of an oxygen adsorption rate constant K(O2) and nitrogen adsorption rate constant K(N2), K(O2)/K(N2)) is 35 or more, and an adsorption rate characteristic, expressed by a time t95 required for adsorbing 95% of an oxygen equilibrium adsorption amount and a time t50 required for adsorbing 50% of an oxygen equilibrium adsorption amount, satisfies the following inequality:
An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen, the adsorbent being a MSC, wherein an oxygen adsorption rate constant is 6.5×10−2 s−1 or more, an oxygen and nitrogen separation ratio α (ratio of an oxygen adsorption rate constant K(O2) and a nitrogen adsorption rate constant K(2), K(O2)/K(N2)) is 35 or more, and an adsorption rate characteristic, expressed by a time t95 required for adsorbing 95% of an oxygen equilibrium adsorption amount and a time t50 required or adsorbing 50% of an oxygen equilibrium adsorption amount, satisfies the following inequality:
Dependencies are inferred from the claim text.