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Title: Methane-rich syngas production 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 400.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 400.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 400.degree. C., and may effectively operate within an IGFC cycle at reactor temperatures between 400-900.degree. C. and pressures in excess of 10 atmospheres.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1342740
Patent Number(s):
9,562,203
Application Number:
14/554,266
Assignee:
U.S. Department of Energy NETL
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 26
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Siefert, Nicholas S., Shekhawat, Dushyant, Berry, David A., and Surdoval, Wayne A. Methane-rich syngas production from hydrocarbon fuels using multi-functional catalyst/capture agent. United States: N. p., 2017. Web.
Siefert, Nicholas S., Shekhawat, Dushyant, Berry, David A., & Surdoval, Wayne A. Methane-rich syngas production from hydrocarbon fuels using multi-functional catalyst/capture agent. United States.
Siefert, Nicholas S., Shekhawat, Dushyant, Berry, David A., and Surdoval, Wayne A. Tue . "Methane-rich syngas production from hydrocarbon fuels using multi-functional catalyst/capture agent". United States. https://www.osti.gov/servlets/purl/1342740.
@article{osti_1342740,
title = {Methane-rich syngas production 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 400.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 400.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 400.degree. C., and may effectively operate within an IGFC cycle at reactor temperatures between 400-900.degree. C. and pressures in excess of 10 atmospheres.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {2}
}

Patent:

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