Dry reforming of CH4 with CO2 to generate syngas by combined plasma catalysis

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Title:	Dry reforming of CH4 with CO2 to generate syngas by combined plasma catalysis
Authors:	張木彬;Pan, Kuan Lun;Chung, Wei Chieh;Chang, Moo Been
Contributors:	工學院環境工程研究所
Keywords:	Carbon;Dielectric constant;Discharges (electric);Dry reforming of methane (DRM);Gases;greenhouse gases (GHGs);Methane;nonthermal plasma;plasma catalysis;Plasma temperature;syngas
Date:	2014-12-01
Issue Date:	2026-04-23 15:02:03 (UTC+8)
Publisher:	IEEE
Abstract:	摘要： The hybrid plasma catalysis system was investigated for dry reforming of methane (DRM) with CO 2 to form syngas. First, dielectric barrier discharge (DBD) alone was evaluated for the effectiveness in conversion of CO 2 and CH 4 , and with the applied voltage of 15.0-19.5 kV, and frequency of 200 Hz. The ratio of feeding gas (CH 4 /CO 2 ) and total gas flow rate were controlled at 1 and 40 mL/min, respectively. The results indicate that conversions of CO 2 and CH 4 significantly increase with increasing applied voltage. The conversion of both greenhouse gases (CO 2 and CH 4 ) achieved the maximum value of 18.9% and 24.0%, respectively, at applied voltage of 19.5 kV. Selectivity of CO decreases from 53.6% to 42.4% as applied voltage is increased from 15.0 to 19.5 kV, while selectivity of H 2 increases from 30.1% to 35.8%. In addition, the influences of gas flow rate and ratio of feeding gas were also explored for DBD-alone system, and the results indicate that energy efficiency of syngas generation can be significantly increased as the flow rate is increased. As a catalyst with a high dielectric constant is placed into the discharge zone, the conversions of two gases (CO 2 and CH 4 ) reach 27.3% and 31.2%, respectively, at applied voltage of 19.5 kV. Selectivity of CO decreases from 59.4% to 49.6% as applied voltage is increased from 15 to 19.5 kV, while selectivity of H 2 increases from 32.0% to 38.3%. In the meantime, energy efficiency of syngas generation is increased by 0.3%. Overall, this paper indicates that combining DBD with a catalyst of high dielectric constant is a viable process for DRM. 其他題名： TPS 出版者： IEEE 出版日期： 2014-12 出處： IEEE transactions on plasma science, 2014-12, Vol.42 (12), p.3809-3818 資源來源： IEEE Xplore (NTUSG) 識別號： ISSN: 0093-3813 識別號： EISSN: 1939-9375 識別號： DOI: 10.1109/TPS.2014.2360238 識別號： CODEN: ITPSBD
Appears in Collections:	[Graduate Institute of Environmental Engineering ] journal & Dissertation

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