Hydrogen recovery from hydrocarbon synthesis processes

Details Hydrogen recovery from hydrocarbon synthesis processes Hydrogen recovery from hydrocarbon synthesis processes

2007-01-23

2007-01-23

Parsa, J. (Department: 1621)

Chemistry: fischer-tropsch processes; or purification or recover

Hydrogenation with gaseous hydrogen to purify or recover

C518S700000, C518S722000, C518S709000

Reexamination Certificate

active

10794084

ABSTRACT:
The invention relates to a process for producing a hydrogen-rich stream from a hydrogen-depleted stream. More particularly, the invention relates to a hydrocarbon synthesis process, by way of example, a Fischer Tropsch process, from which both hydrocarbons and high purity hydrogen are obtained. The process comprises contacting the hydrogen-depleted stream with a reverse-selective membrane to provide a CO2-enriched permeate and a hydrogen-containing retentate. The high purity hydrogen is produced from the hydrogen-containing retentate. The high purity hydrogen thus obtained may be used in a process selected from the group consisting of upgrading hydrocarbons produced from the hydrocarbon synthesis process, hydrotreating a natural gas stream, recycling to the hydrocarbon synthesis reaction unit, high purity hydrogen production, catalyst rejuvenation, and combinations thereof.

REFERENCES:
patent: 3852207 (1974-12-01), Stangeland et al.
patent: 3904513 (1975-09-01), Fisher et al.
patent: 4157294 (1979-06-01), Iwao et al.
patent: 4348486 (1982-09-01), Calvin et al.
patent: 4568663 (1986-02-01), Mauldin
patent: 4963165 (1990-10-01), Blume et al.
patent: 5082551 (1992-01-01), Reynolds et al.
patent: 5260239 (1993-11-01), Hsia
patent: 5268344 (1993-12-01), Pedrick et al.
patent: 5283216 (1994-02-01), Mitchell
patent: 5844005 (1998-12-01), Bauman et al.
patent: 6043288 (2000-03-01), DeGeorge et al.
patent: 6103773 (2000-08-01), Wittenbrink
patent: 6147126 (2000-11-01), DeGeorge et al.
patent: 6179995 (2001-01-01), Cash et al.
patent: 6258860 (2001-07-01), Weedon et al.
patent: 6361583 (2002-03-01), Pinnau et al.
patent: 6562111 (2003-05-01), Edlund et al.
patent: 6572679 (2003-06-01), Baker et al.
patent: 6572680 (2003-06-01), Baker et al.
patent: 6579331 (2003-06-01), Ho
patent: 6589303 (2003-07-01), Lokhandwala et al.
patent: 6627666 (2003-09-01), Pedersen
patent: 0609079 (1994-08-01), None
patent: 0700708 (1996-03-01), None
patent: WO02/051744 (2002-07-01), None
Newsome, D.W., “The Water-Gas Shift Reaction”,Catal. Rev.-Sci. Eng. 21(2):275-318 (1980).
UK Search report dated Aug. 31, 2005.

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