Apparatus to produce high purity ethanol from CO2 and a low BTU gas stream
AssigneeGasTechno Corp
InventorWalter Breidenstein
Life of this patent
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Abstract
Catalytic CO2 hydrogenation to ethanol utilizing radio frequency is very attractive due to higher selectivity (~99%) to ethanol and yield of 0.000718 g/h or higher. A dielectric barrier discharge (DBD) plasma reactor packed with a catalyst comprising of Cu/Zn/Al2O3 can be used for this purpose, which can be operated at approximately 100-200° C., 1-20 atm pressure and gas flow rates above 20 mL/min. The reactor can be made of a simple inert tube. The process is very attractive for a feasible industrial application. To scale up the process to industrial relevance, a multi-tubular reactor configuration is proposed.
Claims31
A plasma reactor system for producing ethanol from carbon dioxide comprising:
- one or more dielectric barrier discharge plasma reactors, each of the one or more dielectric barrier discharge plasma reactors being packed with a transition metal oxide catalyst, the transition metal oxide catalyst comprising Cu/Zn/Al2O3, wherein the one or more dielectric barrier discharge plasma reactors are configured to receive a plasma reactor gas feed from a CO2-containing source, the plasma reactor gas feed comprising a mixture of CO2 and H2O and to output ethanol.
Dependencies are inferred from the claim text.