Electron-induced dry reforming of methane in a temperature-controlled dielectric barrier discharge reactor

Handle URI:
http://hdl.handle.net/10754/562980
Title:
Electron-induced dry reforming of methane in a temperature-controlled dielectric barrier discharge reactor
Authors:
Zhang, Xuming; Cha, Min Suk ( 0000-0003-4059-3421 )
Abstract:
Dry reforming of methane has the potential to reduce the greenhouse gases methane and carbon dioxide and to generate hydrogen-rich syngas. In reforming methane, plasma-assisted reforming processes may have advantages over catalytic processes because they are free from coking and their response time for mobile applications is quick. Although plasma-assisted reforming techniques have seen recent developments, systematic studies that clarify the roles that electron-induced chemistry and thermo-chemistry play are needed for a full understanding of the mechanisms of plasma-assisted reformation. Here, we developed a temperature-controlled coaxial dielectric barrier discharge (DBD) apparatus to investigate the relative importance of electron-induced chemistry and thermo-chemistry in dry reforming of methane. In the tested background temperature range 297-773 K, electron-induced chemistry, as characterized by the physical properties of micro-discharges, was found to govern the conversions of CH4 and CO2, while thermo-chemistry influenced the product selectivities because they were found to depend on the background temperature. Comparisons with results from arc-jet reformation indicated that thermo-chemistry is an efficient conversion method. Our findings may improve designs of plasma-assisted reformers by using relatively hotter plasma sources. However, detailed chemical kinetic studies are needed. © 2013 IOP Publishing Ltd.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division
Publisher:
IOP Publishing
Journal:
Journal of Physics D: Applied Physics
Issue Date:
23-Sep-2013
DOI:
10.1088/0022-3727/46/41/415205
Type:
Article
ISSN:
00223727
Sponsors:
This work was supported by KAUST.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Xumingen
dc.contributor.authorCha, Min Suken
dc.date.accessioned2015-08-03T11:17:56Zen
dc.date.available2015-08-03T11:17:56Zen
dc.date.issued2013-09-23en
dc.identifier.issn00223727en
dc.identifier.doi10.1088/0022-3727/46/41/415205en
dc.identifier.urihttp://hdl.handle.net/10754/562980en
dc.description.abstractDry reforming of methane has the potential to reduce the greenhouse gases methane and carbon dioxide and to generate hydrogen-rich syngas. In reforming methane, plasma-assisted reforming processes may have advantages over catalytic processes because they are free from coking and their response time for mobile applications is quick. Although plasma-assisted reforming techniques have seen recent developments, systematic studies that clarify the roles that electron-induced chemistry and thermo-chemistry play are needed for a full understanding of the mechanisms of plasma-assisted reformation. Here, we developed a temperature-controlled coaxial dielectric barrier discharge (DBD) apparatus to investigate the relative importance of electron-induced chemistry and thermo-chemistry in dry reforming of methane. In the tested background temperature range 297-773 K, electron-induced chemistry, as characterized by the physical properties of micro-discharges, was found to govern the conversions of CH4 and CO2, while thermo-chemistry influenced the product selectivities because they were found to depend on the background temperature. Comparisons with results from arc-jet reformation indicated that thermo-chemistry is an efficient conversion method. Our findings may improve designs of plasma-assisted reformers by using relatively hotter plasma sources. However, detailed chemical kinetic studies are needed. © 2013 IOP Publishing Ltd.en
dc.description.sponsorshipThis work was supported by KAUST.en
dc.publisherIOP Publishingen
dc.titleElectron-induced dry reforming of methane in a temperature-controlled dielectric barrier discharge reactoren
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Physics D: Applied Physicsen
kaust.authorCha, Min Suken
kaust.authorZhang, Xumingen
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