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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.:
U.S. Department Of Energy, Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1166771
Patent Number(s):
8,920,526
Application Number:
13/232,018
Assignee:
U.S. Department Of Energy (Washington, DC) NETL
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}
}

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Works referenced in this record:

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

  • Kamo, Tohru; Takaoka, Kanji; Otomo, Junichiro
  • Journal of Material Cycles and Waste Management, Vol. 8, Issue 2, p. 109-115
  • DOI: 10.1007/s10163-006-0152-y