Production of ethylene with nanowire catalysts
AssigneeSiluria Technologies, Inc.
InventorsErik C. Scher, Fabio R. Zurcher, Joel M. Cizeron, Wayne P. Schammel, Alex Tkachenko, Joel Gamoras, Dmitry Karshtedt, Greg Nyce
Life of this patent
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Abstract
Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethylene. Related methods for use and manufacture of the same are also disclosed.
Claims37
A method for the preparation of ethylene from methane, the method comprising contacting a mixture comprising oxygen and methane at a temperature below 600° C. with a catalytic nanowire, thereby producing C2 hydrocarbons at a selectivity of greater than 30%, wherein the catalytic nanowire comprises one or more elements from any of Groups 1 through 7, lanthanides, actinides or combinations thereof in the form of oxides, hydroxides, oxyhydroxides, sulfates, carbonates, oxide carbonates, oxalates, phosphates, hydrogenphosphates, dihydrogenphosphates, oxyhalides, hydroxihalides, oxysulfates or combinations thereof.
A method for preparing a downstream product of ethylene, the method comprising converting ethylene into a downstream product of ethylene, and the method comprising contacting a mixture comprising oxygen and methane at a temperature below 600° C. with a catalytic nanowire, thereby producing C2 hydrocarbons at a selectivity of greater than 30%, wherein the catalytic nanowire comprises one or more elements from any of Groups 1 through 7, lanthanides, actinides or combinations thereof in the form of oxides, hydroxides, oxyhydroxides, sulfates, carbonates, oxide carbonates, oxalates, phosphates, hydrogenphosphates, dihydrogenphosphates, oxyhalides, hydroxihalides, oxysulfates or combinations thereof.
A method for the preparation of a downstream product of ethylene, the method comprising:
- converting methane into ethylene by contacting a mixture comprising oxygen and methane at a temperature below 600° C. with a catalytic nanowire, thereby producing C2hydrocarbons at a selectivity of greater than 30%;
- and
- oligomerizing the ethylene to prepare a downstream product of ethylene, wherein the catalytic nanowire comprises one or more elements from any of Groups 1 through 7, lanthanides, actinides or combinations thereof in the form of oxides, hydroxides, oxyhydroxides, sulfates, carbonates, oxide carbonates, oxalates, phosphates, hydrogenphosphates, dihydrogenphosphates, oxyhalides, hydroxihalides, oxysulfates or combinations thereof.
Dependencies are inferred from the claim text.