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Title: Production of methane-rich syngas from hydrocarbon fuels using multi-functional catalyst/capture agent

Abstract

The disclosure provides a gasification process for the production of a methane-rich syngas at temperatures exceeding 700.degree. C. through the use of an alkali hydroxide MOH, using a gasification mixture comprised of at least 0.25 moles and less than 2 moles of water for each mole of carbon, and at least 0.15 moles and less than 2 moles of alkali hydroxide MOH for each mole of carbon. These relative amounts allow the production of a methane-rich syngas at temperatures exceeding 700.degree. C. by enabling a series of reactions which generate H.sub.2 and CH.sub.4, and mitigate the reforming of methane. The process provides a methane-rich syngas comprised of roughly 20% (dry molar percentage) CH.sub.4 at temperatures above 700.degree. C., and may effectively operate within an IGFC cycle at reactor temperatures between 700-900.degree. C. and pressures in excess of 10 atmospheres.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1166771
Patent Number(s):
8920526
Application Number:
13/232,018
Assignee:
U.S. Department Of Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Sep 14
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Siefert, Nicholas S., Shekhawat, Dushyant, Berry, David A., and Surdoval, Wayne A.. Production of methane-rich syngas from hydrocarbon fuels using multi-functional catalyst/capture agent. United States: N. p., 2014. Web.
Siefert, Nicholas S., Shekhawat, Dushyant, Berry, David A., & Surdoval, Wayne A.. Production of methane-rich syngas from hydrocarbon fuels using multi-functional catalyst/capture agent. United States.
Siefert, Nicholas S., Shekhawat, Dushyant, Berry, David A., and Surdoval, Wayne A.. Tue . "Production of methane-rich syngas from hydrocarbon fuels using multi-functional catalyst/capture agent". United States. https://www.osti.gov/servlets/purl/1166771.
@article{osti_1166771,
title = {Production of methane-rich syngas from hydrocarbon fuels using multi-functional catalyst/capture agent},
author = {Siefert, Nicholas S. and Shekhawat, Dushyant and Berry, David A. and Surdoval, Wayne A.},
abstractNote = {The disclosure provides a gasification process for the production of a methane-rich syngas at temperatures exceeding 700.degree. C. through the use of an alkali hydroxide MOH, using a gasification mixture comprised of at least 0.25 moles and less than 2 moles of water for each mole of carbon, and at least 0.15 moles and less than 2 moles of alkali hydroxide MOH for each mole of carbon. These relative amounts allow the production of a methane-rich syngas at temperatures exceeding 700.degree. C. by enabling a series of reactions which generate H.sub.2 and CH.sub.4, and mitigate the reforming of methane. The process provides a methane-rich syngas comprised of roughly 20% (dry molar percentage) CH.sub.4 at temperatures above 700.degree. C., and may effectively operate within an IGFC cycle at reactor temperatures between 700-900.degree. C. and pressures in excess of 10 atmospheres.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {12}
}

Works referenced in this record:

Method And System For Producing Syngas
patent-application, September 2013


Processes for the Separation of Methane from a Gas Stream
patent-application, October 2009


Method for the production of hydrogen-containing gaseous mixtures
patent-application, March 2007


Hydrogen Generation
patent, June 1974


Production of hydrogen by steam gasification of dehydrochlorinated poly(vinyl chloride) or activated carbon in the presence of various alkali compounds
journal, September 2006


Process for Converting a Carbonaceous Material to Methane, Methanol and/or Dimethyl Ether Using Microchannel Process Technology
patent-application, October 2009


Hydrocarbon Cracking in a Regenerable Molten Media
patent, December 1974


Melt Cracking for Lubricating Oils
patent, January 1975