Metal ferrite catalyst for conversion of CO2 and methane to synthesis gas via reforming

Patent · 01 October 2019

OSTI ID:1576238

Siriwardane, Ranjani V.

The invention provides a use of metal ferrite oxygen carrier for converting carbon dioxide to carbon monoxide or synthesis gas via three processes: catalytic dry reforming of methane, chemical looping dry reforming of fuel and promoting coal gasification with CO2. The metal ferrite oxygen carrier comprises MzFexOy, where MzFexOy is a chemical composition with 0 < x ≤ 4, z > 0 and 0 < y ≤ 6 and M is one of Ca, Ba, and/or combinations thereof. For example, MzFexOy may be one of CaFe2O4, BaFe2O4, MgFe2O4, SrFe2O4 and/or combinations thereof. In catalytic dry reforming, methane and carbon dioxide react in the presence of metal ferrites generating a product stream comprising at least 50 vol. % CO and H2. In another embodiment, chemical looping dry reforming process where metal ferrite is reduced with a fuel and then oxidized with carbon dioxide is used for production of CO from carbon dioxide. In another embodiment, the metal ferrite is used as a promoter to produce CO continuously from coal gasification with CO2.

• Research Organization: U.S. Dept. of Energy, Washington, DC (United States)
• Sponsoring Organization: USDOE
• Assignee: U.S. Department of Energy (Washington, DC)
• Patent Number(s): 10,427,138
• Application Number: 15/599,988
• OSTI ID: 1576238
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES