Tailored reforming of n-dodecane in an aqueous discharge reactor

Handle URI:
http://hdl.handle.net/10754/621764
Title:
Tailored reforming of n-dodecane in an aqueous discharge reactor
Authors:
Zhang, Xuming; Cha, Min Suk ( 0000-0003-4059-3421 )
Abstract:
Here, we present an original technical approach to simultaneously produce a tailored synthetic liquid fuel and a syngas. In an aqueous discharge reactor with gaseous bubbles, we reformed an emulsified n-dodecane/water mixture. The higher dielectric permittivity of the mixture facilitates electrical discharges that cause the electron impact dissociation of n-dodecane into alkyl and hydrogen radicals, while the addition of water also provides a steam-reforming environment inside the discharged bubbles. We added methane and carbon dioxide to the system because they dissociate into methyl and oxygen radicals, respectively, which prevent the alkyl-alkyl recombinations that result in the formation of long-chain hydrocarbons (HCs). Thus, we were able to control product selectivity by adding methane to increase the production of short-chain HCs and hydrogen gas or by adding carbon dioxide to increase the production of oxygenated fuels, such as 1-dodecanol. Using gas chromatography and gas chromatography-mass spectrometry we detail the compositions of both the synthetic liquid and the syngas, and we provide conceptual chemical mechanisms to selectively increase the production of oxygenates and that of HCs that are shorter or longer than the base fuel. The basis of this in-liquid discharge for the purpose of fuel reforming has potential applications to advanced engines to control ignition delay time, a continuing focus of study in our lab. © 2016 IOP Publishing Ltd.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division
Citation:
Zhang X, Cha MS (2016) Tailored reforming of n-dodecane in an aqueous discharge reactor. J Phys D: Appl Phys 49: 175201. Available: http://dx.doi.org/10.1088/0022-3727/49/17/175201.
Publisher:
IOP Publishing
Journal:
Journal of Physics D: Applied Physics
Issue Date:
24-Mar-2016
DOI:
10.1088/0022-3727/49/17/175201
Type:
Article
ISSN:
0022-3727; 1361-6463
Sponsors:
The research reported in this publication was supported by Competitive Research Funding from King Abdullah University of Science and Technology (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.accessioned2016-11-03T13:24:26Z-
dc.date.available2016-11-03T13:24:26Z-
dc.date.issued2016-03-24en
dc.identifier.citationZhang X, Cha MS (2016) Tailored reforming of n-dodecane in an aqueous discharge reactor. J Phys D: Appl Phys 49: 175201. Available: http://dx.doi.org/10.1088/0022-3727/49/17/175201.en
dc.identifier.issn0022-3727en
dc.identifier.issn1361-6463en
dc.identifier.doi10.1088/0022-3727/49/17/175201en
dc.identifier.urihttp://hdl.handle.net/10754/621764-
dc.description.abstractHere, we present an original technical approach to simultaneously produce a tailored synthetic liquid fuel and a syngas. In an aqueous discharge reactor with gaseous bubbles, we reformed an emulsified n-dodecane/water mixture. The higher dielectric permittivity of the mixture facilitates electrical discharges that cause the electron impact dissociation of n-dodecane into alkyl and hydrogen radicals, while the addition of water also provides a steam-reforming environment inside the discharged bubbles. We added methane and carbon dioxide to the system because they dissociate into methyl and oxygen radicals, respectively, which prevent the alkyl-alkyl recombinations that result in the formation of long-chain hydrocarbons (HCs). Thus, we were able to control product selectivity by adding methane to increase the production of short-chain HCs and hydrogen gas or by adding carbon dioxide to increase the production of oxygenated fuels, such as 1-dodecanol. Using gas chromatography and gas chromatography-mass spectrometry we detail the compositions of both the synthetic liquid and the syngas, and we provide conceptual chemical mechanisms to selectively increase the production of oxygenates and that of HCs that are shorter or longer than the base fuel. The basis of this in-liquid discharge for the purpose of fuel reforming has potential applications to advanced engines to control ignition delay time, a continuing focus of study in our lab. © 2016 IOP Publishing Ltd.en
dc.description.sponsorshipThe research reported in this publication was supported by Competitive Research Funding from King Abdullah University of Science and Technology (KAUST).en
dc.publisherIOP Publishingen
dc.subjectaqueous dischargeen
dc.subjectfuel reformingen
dc.subjectin-liquid plasmaen
dc.subjectliquid hydrocarbonsen
dc.titleTailored reforming of n-dodecane in an aqueous 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.authorZhang, Xumingen
kaust.authorCha, Min Suken
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