Plasma‐catalytic synthesis of acrylonitrile from methane and nitrogen
[1];
[1];
[3]
- Department of Energy, Environmental and Chemical Engineering Washington University in Saint Louis Saint Louis Missouri USA
- Institute of Materials Science and Engineering Washington University in Saint Louis Saint Louis Missouri USA
- Department of Energy, Environmental and Chemical Engineering Washington University in Saint Louis Saint Louis Missouri USA, Institute of Materials Science and Engineering Washington University in Saint Louis Saint Louis Missouri USA
Abstract In this work, we demonstrate plasma‐catalytic synthesis of hydrogen and acrylonitrile (AN) from CH 4 and N 2 . The process involves two steps: (1) plasma synthesis of C 2 H 2 and HCN in a nominally 1:1 stoichiometric ratio with high yield up to 90% and (2) downstream thermocatalytic reaction of these intermediates to make AN. The effect of process parameters on product distributions and specific energy requirements are reported. If the catalytic conversion of C 2 H 2 and HCN in the downstream thermocatalytic step to AN were perfect, which will require further improvements in the thermocatalytic reactor, then at the maximum output of our 1 kW radiofrequency 13.56 MHz transformer, a specific energy requirement of 73 kWh kg AN −1 was determined. The expectation is that scaling up the process to higher throughputs would result in decreases in specific energy requirement into the predicted economically viable range less than 10 kWh kg AN −1 .
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 2263283
- Journal Information:
- AIChE Journal, Journal Name: AIChE Journal Vol. 70 Journal Issue: 1; ISSN 0001-1541
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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