Method and apparatus for making ultra-pure hydrogen

Details Method and apparatus for making ultra-pure hydrogen Method and apparatus for making ultra-pure hydrogen

1997-09-30

1999-09-21

Langel, Wayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

95 55, 95 56, 96 4, 96 11, 422177, 423246, 4236481, B01D 5322, C01B 302

Patent

active

059550449

ABSTRACT:
Ultra-high purity hydrogen is produced from a hydrogen stream containing impurities including carbon monoxide and carbon dioxide, by first depleting the stream of carbon monoxide and carbon dioxide, than passing it through a semipermeable membrane such as a palladium-silver membrane, to remove methane, water and other impurities. Preferably, a methanation catalyst is used in the first step to convert the carbon monoxide and carbon dioxide to methane and water. This stream, free of carbon monoxide and carbon dioxide, is then passed through the semipermeable membrane to separate the remaining impurities.

REFERENCES:
patent: 2747970 (1956-05-01), Rosenblatt
patent: 2773561 (1956-12-01), Hunter
patent: 3251652 (1966-05-01), Pfefferle
patent: 3615164 (1971-10-01), Baker et al.
patent: 3663162 (1972-05-01), Randhava
patent: 4056373 (1977-11-01), Rubin
patent: 4238204 (1980-12-01), Perry
patent: 4242105 (1980-12-01), Frost
patent: 4368142 (1983-01-01), Frohning et al.
patent: 4400575 (1983-08-01), Frost
patent: 4654047 (1987-03-01), Hopkins et al.
patent: 4732583 (1990-05-01), DeLong et al.
patent: 5064446 (1991-11-01), Kusuki et al.
patent: 5259870 (1993-11-01), Edlund
patent: 5489327 (1996-02-01), Otsuka et al.
patent: 5492682 (1996-02-01), Succi et al.
patent: 5556603 (1996-09-01), Succi et al.

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