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Indexed by:期刊论文

Date of Publication:2008-10-01

Journal:PLASMA SCIENCE & TECHNOLOGY

Included Journals:SCIE、EI、CSCD、Scopus

Volume:10

Issue:5

Page Number:600-604

ISSN No.:1009-0630

Key Words:methane conversion; ethylene; pulsed spark discharges; plasma; catalyst

Abstract:Oxygen-free conversion of methane to ethylene was investigated in a two-stage plasma-followed-by-catalyst (PFC) reactor. In the absence of catalyst, pulsed spark discharges and pulsed corona discharges were compared for methane conversion. The results showed that methane was mainly converted to acetylene, but pulsed spark discharges exhibited distinct advantages over the pulsed corona discharges in methane conversion. Thereby, pulsed spark discharges were employed and followed by Ag-Pd/SiO2 catalyst for achieving ethylene as a target product in the PFC reactor. Using the PFC reactor, a steady single-pass ethylene yield of 57% was obtained at a rate of methane conversion of 74%.