Compositions – Absorptive – or bindive – and chemically yieldive
Patent
1978-06-27
1980-07-29
Hunt, Brooks H.
Compositions
Absorptive, or bindive, and chemically yieldive
252462, 34 15, 55 74, 55 16, 55 58, 55 62, B01D 1508
Patent
active
042150086
ABSTRACT:
An efficient and economical method for the purification of hydrogen gas is proposed by use of an alloy of a rare earth metal with nickel and/or cobalt plus, optionally, iron, copper or chromium, utilizing the great selectivity of the alloy for the adsorption of hydrogen gas with very little adsorptivity for impurity gases commonly found in an impure hydrogen gas. The purification process is carried out by the pressurized adsorption of hydrogen on the alloy powder, followed by the recovery of high-purity hydrogen gas released from the alloy under reduced pressure or by heating. The alloy in the form of powder is preferably activated prior to use by repeated adsorption-desorption cycles of hydrogen on and from the alloy powder.
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Hagiwara Zenzi
Matsui Sigeo
Sakaguchi Susumu
Yamanaka Yoshio
Hunt Brooks H.
Osaka Oxygen Industries Ltd.
Shin-Etsu Chemical Co. , Ltd.
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