METHOD AND SYSTEM FOR INCREASING HYDROGEN YIELD/PRODUCTION IN A REFINERY

Title:

METHOD AND SYSTEM FOR INCREASING HYDROGEN YIELD/PRODUCTION IN A REFINERY

Document Type and Number:

WIPO Patent Application WO/2011/082210

Kind Code:

A3

Abstract:

A method and system for capturing hydrogen gas in a refinery is disclosed. The system comprises a first membrane and pre-reformer. The membrane is suitable for separating a refinery fuel gas feed, which includes hydrogen gas and hydrocarbon gases, into a hydrogen gas depleted retentate stream and a hydrogen gas enriched permeate stream. The pre-reformer receives the retentate stream from the first membrane and catalytically converts the retentate stream into an outlet stream of hydrogen and methane gases. The system may further include a reformer which receives at least a portion of the outlet stream and catalytically converts the methane gas into hydrogen and carbon oxides. A second membrane may be used for separating the outlet stream into a second hydrogen depleted retentate stream and second hydrogen enriched permeate stream. The reformer, in this case, receives the second hydrogen depleted retentate stream to provide methane for steam reforming. Because hydrogen is removed from the original refinery fuel gas feed fed to the pre-reformer and/or the outlet stream fed to the reformer, additional hydrocarbons can be fed to the pre-reformer and/or reformer, in place of the removed hydrogen gas, to increase the overall hydrogen gas production from the system.

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Inventors:

GORSKI ALAN (US)
OKEOWO OLUWASIJIBOMI (US)
WANG MING (US)

Application Number:

PCT/US2010/062315

Publication Date:

November 17, 2011

Filing Date:

December 29, 2010

Export Citation:

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Assignee:

CHEVRON USA INC (US)
GORSKI ALAN (US)
OKEOWO OLUWASIJIBOMI (US)
WANG MING (US)

International Classes:

C01B3/56; B01D71/02; C01B3/34

Foreign References:

US6589303B1	2003-07-08
US6544316B2	2003-04-08
US6350371B1	2002-02-26
US6613125B1	2003-09-02
US6011192A	2000-01-04

Attorney, Agent or Firm:

SCHULTE, Richard, J. et al. (Law DepartmentPost Office Box 600, San Ramon California, US)

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