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Metal ferrite oxygen carriers/catalyst for partial oxidation of methane for production of synthesis gas

Patent ·
OSTI ID:1496962
;
Materials, methods to prepare, and methods of use for partial oxidation of methane. Embodiments include delivering a metal ferrite oxygen carrier to a fuel reactor, wherein the metal ferrite oxygen carrier comprises MFexOy where 1.ltoreq.x.ltoreq.3 and 3.ltoreq.y.ltoreq.5, and where M comprise a Group II alkali earth metals; and delivering a gaseous stream that contains methane to the metal ferrite oxygen carrier in the fuel reactor and maintaining the fuel reactor at a reducing temperature sufficient to reduce some portion of the metal ferrite oxygen carrier and oxidize some portion of the methane containing gas stream. Embodiments further include generating gaseous products containing H.sub.2 and CO gas in the fuel reactor; withdrawing a product stream from the fuel reactor, where the gaseous products comprise the product stream, and where at least >50 vol. % of the product stream includes CO and H.sub.2; oxidizing the reduced carrier in an oxidizing reactor by contacting the reduced carrier and an oxidizing gas at an oxidizing temperature, where the oxidizing gas is comprised of oxygen, and where the oxidizing temperature is sufficient to generate an oxidizing reaction, where the reactants of the oxidizing reaction comprise some portion of the oxygen, some portion of the M component, and some portion of the FecOd component, and further wherein the product of the oxidizing reaction is a re-oxidized carrier that comprises some portion of the MFexOy; and delivering heat generated in the oxidizing reactor to the fuel reactor for the reaction of metal ferrite with methane.
Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
NONE;
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
10,106,407
Application Number:
15/497,708
OSTI ID:
1496962
Country of Publication:
United States
Language:
English

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