Adsorption method for producing hydrogen and device for...

Details Adsorption method for producing hydrogen and device for... Adsorption method for producing hydrogen and device for...

2004-06-28

2009-12-08

Hopkins, Robert A (Department: 1797)

Gas separation: processes

Solid sorption

Including reduction of pressure

C095S143000

Reexamination Certificate

active

07628843

ABSTRACT:
A feedstock hydrogen-enriched gas (3) is supplied to a PSA purification unit (1) which delivers pure hydrogen at a production output (4) and a hydrogen-deficient gas at a residual output. Said hydrogen-deficient gas is compressed (9) and injected into a line (10) wherein a gaseous combustible mixture circulates whose part (12) is extracted upstream of the PSA unit (1), compressed (13) and reinjected into said feedstock of the PSA unit (1). Said invention is used, in particular for petrochemical sites.

REFERENCES:
patent: 4836833 (1989-06-01), Nicholas et al.
patent: 5435836 (1995-07-01), Anand et al.
patent: 7252702 (2007-08-01), Al-Babtain
patent: 0 579 290 (1994-01-01), None
International Search Report for PCT/FR2004/050294, Oct. 19, 2004.

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