U.S. Department of Energy

Other

Hanjing Tian

Ranjani V Siriwardane

Jianli Hu

Robert A Dagle

Dushyant Shekhawat

Mark D Bearden

Victor Abdelsayed

Michael J Spencer

Albert Stiegman

Christina Wildfire

In one aspect, the disclosure relates to relates to heterogeneous catalysts useful for the synthesis of ammonia under microwave irradiation, processes for preparing the disclosed heterogeneous catalysts, and processes for synthesizing ammonia using the heterogeneous catalysts with microwave irradiation. In various aspects, the disclosed heterogeneous catalysts comprise: a metal selected from Group 7, Group 8, Group 9, Group 10, Group 11, or combinations thereof; a metal oxide support; and optionally a promoter material. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Methods and compositions for microwave catalytic ammonia synthesis

Methods, systems and apparatus relate to producing synthesis gas or carbon and hydrogen utilizing a reduced catalyst CuO&#x2014;FeO. The method comprises introducing CH; reducing the CuO&#x2014;FeOwith the introduced CH, yielding at least a reduced metal catalyst; oxidizing the reduced metal with Oyielding CuO&#x2014;FeO; and generating heat that would be used for the hydrogen and carbon or syngas production with the reduced catalyst CuO&#x2014;FeO.

Production of pure hydrogen and synthesis gas or carbon with CUO-Fe2O3 oxygen carriers using chemical looping combustion and methane decomposition/reforming

The disclosure provides an oxygen carrier for a chemical looping cycle, such as the chemical looping combustion of solid carbonaceous fuels, such as coal, coke, coal and biomass char, and the like. The oxygen carrier is comprised of at least 24 weight % (wt %) CuO, at least 10 wt % Fe2O3, and an inert support, and is typically a calcine. The oxygen carrier exhibits a CuO crystalline structure and an absence of iron oxide crystalline structures under XRD crystallography, and provides an improved and sustained combustion reactivity in the temperature range of 600&#xb0; C.-1000&#xb0; C. particularly for solid fuels such as carbon and coal.

Regenerable mixed copper-iron-inert support oxygen carriers for solid fuel chemical looping combustion process

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Morgantown, WV, United States of America

Hanjing Tian