Hydromethanation of a carbonaceous feedstock

Inactive Publication Date: 2013-02-21
SURE CHAMPION INVESTMENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0037]The process in accordance with the present invention is useful, for example, for more efficiently producing hi

Problems solved by technology

Generating the required amount and type (temperature/pressure) of superheated steam solely from process heat rec

Method used

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  • Hydromethanation of a carbonaceous feedstock
  • Hydromethanation of a carbonaceous feedstock
  • Hydromethanation of a carbonaceous feedstock

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Example

[0041]The present invention relates to processes for converting a non-gaseous carbonaceous material ultimately into one or more value-added gaseous products. Further details are provided below.

[0042]In the context of the present description, all publications, patent applications, patents and other references mentioned herein, if not otherwise indicated, are explicitly incorporated by reference herein in their entirety for all purposes as if fully set forth.

[0043]Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. In case of conflict, the present specification, including definitions, will control.

[0044]Except where expressly noted, trademarks are shown in upper case.

[0045]Unless stated otherwise, all percentages, parts, ratios, etc., are by weight.

[0046]Unless stated otherwise, pressures expressed in psi units are gauge, and pressures expressed in kP...

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Abstract

The present invention relates to processes for hydromethanating a carbonaceous feedstock to a methane product stream and electrical power, in which heat energy from the hot methane-enriched synthesis gas is used to generate a dry saturated steam stream, the dry saturated steam stream is converted into a superheated steam stream via pressure drop for feeding into the hydromethanation reactor to satisfy the steam demand of the hydromethanation reaction, and heat generated from a downstream gas methanation processing is recovered to produce a superheated process steam stream which is used to generate the electric power.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority under 35 U.S.C. §119 from U.S. Provisional Application Ser. No. 61 / 524,536 (filed 17 Aug. 2011), the disclosure of which is incorporated by reference herein for all purposes as if fully set forth.[0002]This application is related to commonly owned U.S. patent application Ser. No. ______, (attorney docket no. FN-0070 US NP1, entitled HYDROMETHANATION OF A CARBONACEOUS FEEDSTOCK, concurrently filed herewith), the disclosure of which is incorporated by reference herein for all purposes as if fully set forth.FIELD OF THE INVENTION[0003]The present invention relates to processes for hydromethanating a carbonaceous feedstock to a methane product stream and electrical power, in which heat energy from the hot methane-enriched synthesis gas is used to generate a dry saturated steam stream, and the dry saturated steam stream is converted into a superheated steam stream via pressure drop for feeding into the hydrometh...

Claims

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Application Information

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IPC IPC(8): F22B33/00
CPCC10L3/08
Inventor SIRDESHPANDE, AVINASH
Owner SURE CHAMPION INVESTMENT LTD
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