Hydrogen recovery by adsorbent membranes

Details Hydrogen recovery by adsorbent membranes Hydrogen recovery by adsorbent membranes

1992-08-03

1994-10-11

Langel, Wayne

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

95 41, 95 45, 95 50, 423652, B01D 5910

Patent

active

053545478

ABSTRACT:
A composite semipermeable membrane comprising microporous adsorbent material supported by a porous substrate is operated in series with a pressure swing adsorption (PSA) system and the PSA reject gas is used as a sweep gas to improve membrane performance. The integrated membrane-PSA system is particularly useful for recovering high-purity hydrogen from a mixture of hydrogen and hydrocarbons, and is well-suited for integration with a steam-methane reformer.

REFERENCES:
patent: 4398926 (1983-08-01), Doshi
patent: 4690695 (1987-09-01), Doshi
patent: 4701187 (1987-10-01), Choe et al.
patent: 4981676 (1991-01-01), Minet et al.
patent: 5104425 (1992-04-01), Rao et al.
patent: 5131930 (1992-07-01), Vines

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