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Real-Time Monitoring for Reforming Processes of Liquid Hydrocarbon Fuel-Air Pre-Mixtures by Non-Thermal Plasmas using Ion Attachment Mass Spectrometry

Abstract

The plasma induced reforming processes of fuel-air mixtures was investigated to understand the mechanism of plasma-assisted combustion, which can improve the thermal efficiency and stability of internal combustion engines. In this study, a mixture of air with i-octane or n-heptane fuels were reformed by non–thermal plasma in the flow reactor, generated by a dielectric barrier discharge, and then directly analyzed by ion attachment mass spectrometry. Plasma irradiation of the air/hydrocarbon mixture produced an oxygen atom which then reacted with a hydrocarbon, leading to hydroxyl and alkyl radicals. The alkyl radical was immediately converted to alkyl hydroperoxide. Finally, ketone and aldehyde were formed through the alkyloxy radical intermediate. The details of each reaction process were investigated by ab initio calculations. The proposed plasma induced fuel reforming processes are strongly supported by the computational results.

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Publication details

The article was received on 26 Oct 2017, accepted on 01 Dec 2017 and first published on 01 Dec 2017


Article type: Paper
DOI: 10.1039/C7CP07249J
Citation: Phys. Chem. Chem. Phys., 2017, Accepted Manuscript
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    Real-Time Monitoring for Reforming Processes of Liquid Hydrocarbon Fuel-Air Pre-Mixtures by Non-Thermal Plasmas using Ion Attachment Mass Spectrometry

    D. Asakawa, A. Kuramochi, E. Takahashi and N. Saito, Phys. Chem. Chem. Phys., 2017, Accepted Manuscript , DOI: 10.1039/C7CP07249J

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