CO2 reforming of CH4 by combination of cold plasma jet and Ni/γ-Al2O3 catalyst☆

Long, Huali; Shang, Shuyong; Tao, Xumei; Yin, Yuan‐Qi; Dai, Xin

doi:10.1016/j.ijhydene.2008.05.026

Cited by 87 publications

(36 citation statements)

References 21 publications

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“…5a. As it can be seen at higher flow rate (180 ml/min) from a defined value of Feed conversion as a function of specific input energy (10). Input voltage = 6 kV, CH 4 / CO 2 = 1, a, total feed flow rate = 180 ml/min, b total feed flow rate = 90 ml/min SIE (*6 kJ/L) the perceptible amounts of acetylene is produced, and after this point the hydrogen production shows no major variation.…”

Section: Resultsmentioning

confidence: 85%

“…Figure 4 reveals that the conversions increase with SIE in the linear trend. Equation (10) shows that the SIE values of each component inversely affected by the input flow rate of that component to the reactor. Therefore, higher conversion of CO 2 and CH 4 can be achieved in the lower SIE values with increasing the residence time of the reactants in the plasma zone through reducing input feed flow rates to the reactor.…”

Section: Resultsmentioning

confidence: 99%

“…The following relations were used for calculation of the methane and carbon dioxide conversions (X i ), H 2 and CO selectivity (S i ) [10], and specific input energy (SIE), …”

Section: Methodsmentioning

confidence: 99%

“…They achieved higher feed conversion, higher product selectivity and higher specific energy by thermal plasma with catalyst, compare to thermal plasma only. Long et al [10] investigated dry reforming of methane to synthesis gas by cold plasma jet only and combination of cold plasma jet with Ni/c-Al 2 O 3 catalyst. Bo et al [11] employed gliding arc discharge (GAD) for dry reforming of methane to synthesis gas.…”

Section: Introductionmentioning

confidence: 99%

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DC-Pulsed Plasma for Dry Reforming of Methane to Synthesis Gas

Seyed-Matin¹,

Jalili²,

Jenab³

et al. 2010

Plasma Chem Plasma Process

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The carbon dioxide reforming of methane to synthesis gas under DC-pulsed plasma was investigated. The effects of specific input energy and feed ratio on the product distribution and also feed conversion was studied. At the input energy of about 11 eV/ molecule per methane and/or carbon dioxide the feed conversion of 38% for CH 4 and 28% for CO 2 and product selectivity of 74% has been attained for H 2 and CO at feed flow rate of 90 ml/min. The energy consumption in this work displays potential to further study and optimization of the process. The importance of the electron impact reactions in the process was discussed. The results show that by prudent tuning of system variables, the process be able to run in the way of synthesis gas, instead of hydrocarbon production.

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Section: Resultsmentioning

confidence: 85%

Section: Resultsmentioning

confidence: 99%

“…The following relations were used for calculation of the methane and carbon dioxide conversions (X i ), H 2 and CO selectivity (S i ) [10], and specific input energy (SIE), …”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

DC-Pulsed Plasma for Dry Reforming of Methane to Synthesis Gas

Seyed-Matin¹,

Jalili²,

Jenab³

et al. 2010

Plasma Chem Plasma Process

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show abstract

“…As for plasma catalysis, various catalysts including Ni/γ-Al 2 O 3 [18]- [20], Cu/γ-Al 2 O 3 [21], Pd/γ-Al 2 O 3 [22], Ag/γ-Al 2 O 3 [23], and zeolite [24] have been investigated with a single-stage configuration (implying that catalyst is placed in the discharge zone) for DRM. However, relevant studies indicate that a positive role of the combination of plasma with catalyst is not always obtained.…”

Section: Introductionmentioning

confidence: 99%

Dry Reforming of CH<sub>4</sub> With CO<sub>2</sub> to Generate Syngas by Combined Plasma Catalysis

Pan

Chung

Chang

2014

IEEE Trans. Plasma Sci.

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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.Index Terms-Dry reforming of methane (DRM), greenhouse gases (GHGs), nonthermal plasma, plasma catalysis, syngas.

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Hydrogen and Syngas Production from Hydrocarbons

Heintze

2012

Plasma Chemistry and Catalysis in Gases and Liquids

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CO2 reforming of CH4 by combination of cold plasma jet and Ni/γ-Al2O3 catalyst☆

Cited by 87 publications

References 21 publications

DC-Pulsed Plasma for Dry Reforming of Methane to Synthesis Gas

DC-Pulsed Plasma for Dry Reforming of Methane to Synthesis Gas

Dry Reforming of CH<sub>4</sub> With CO<sub>2</sub> to Generate Syngas by Combined Plasma Catalysis

Hydrogen and Syngas Production from Hydrocarbons

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