Roles of CO2 and H2O as oxidants in the plasma reforming of aliphatic hydrocarbons

Futamura, Shigeru; Kabashima, Hajime; Annadurai, G.

doi:10.1016/j.cattod.2006.02.032

Cited by 22 publications

(8 citation statements)

References 19 publications

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“…[13,16,19,20] Numerous examples are also found in the literature describing the integrated application of plasma plus a catalyst. [26][27][28][29][30][31][32][33][34][35][36][37][38] One major advantage of using plasma to achieve methane dry reforming is the possibility to operate at low temperature and the consequent decrease of carbon deposition during the process.…”

Section: Introductionmentioning

confidence: 99%

“…Different types of electrical discharges were applied to generate plasma at room temperature and atmospheric pressure, including continuous corona discharge (DC) of positive and negative polarity, AC discharges, dielectric barrier discharges (DBD), and pulsed discharges . Numerous examples are also found in the literature describing the integrated application of plasma plus a catalyst …”

Section: Introductionmentioning

confidence: 99%

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Development and Testing of a Self-Triggered Spark Reactor for Plasma Driven Dry Reforming of Methane

Shapoval

Marotta

Ceretta

et al. 2014

Plasma Process. Polym.

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A versatile reactor was developed for plasma induced dry reforming of methane at atmospheric pressure and room temperature. Among different types of electrical discharges tested, low-power self-triggered pulsed spark discharges give the best results in terms of CH 4 and CO 2 conversion, H 2 and CO yield and selectivity, and energy efficiency. Moreover, undesired carbon deposits are not formed, certainly due to the low temperature but also to the short but strong current pulses between the electrodes, the surfaces of which are kept ‘‘clean’’ by the discharge itself. Optical emission spectroscopy was also used to investigate the plasma emitting species and to determine the average electron density

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and Testing of a Self-Triggered Spark Reactor for Plasma Driven Dry Reforming of Methane

Shapoval

Marotta

Ceretta

et al. 2014

Plasma Process. Polym.

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show abstract

“…H 2 O and CO 2 have similar oxidation capacities. The difference between the two is mainly reflected in the product-H 2 O produces higher numbers of H free radicals than CO 2 [58]. O and OH free radicals can be formed by ionization of H 2 O (H 2 O → H + OH) in the presence of steam.…”

Section: Homogeneous Conversion Of Biomass Tarmentioning

confidence: 99%

Mechanism of In-Situ Catalytic Cracking of Biomass Tar over Biochar with Multiple Active Sites

Feng¹,

Zhao²,

Sun³

2020

Applications of Biochar for Environmental Safety

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Biomass tar is the bottleneck in the development of efficient utilization of biomass syngas. The in-situ catalytic cracking biomass tar with multi-active biochar is investigated in a two-stage fluidized bed-fixed bed reactor. It indicates that adding H 2 O or CO 2 is found to improve the homogeneous and heterogeneous cracking of biomass tar. Activation of biochar by H 2 O or CO 2 impacted the morphology of biochar surface and distribution of metal species. H 2 O or CO 2 affects the creation and regeneration of pore structures, influencing the biochar structure and dynamical distribution of alkali and alkaline earth metal species (AAEMs), which ensure enough surface active sites to maintain the catalytic activity of biochar. The tar cracking into low-quality tar or small-molecule gas may be catalyzed by K, while the combination of tar with biochar would be promoted by Ca. The volatilizations of K and Ca, due to their reaction with volatiles, are to a large extent in accordance with their valences and boiling points. The subsequent transformation from the small aromatic ring systems to the larger ones occurs due to the volatile-biochar interaction. During tar cracking over biochar, K and Ca act as the active sites on biochar surface to promote the increase of active intermediates (C▬O bonds and C▬O▬K/Ca).

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“…Techniques for producing H 2 from natural gas or hydrocarbon type fuel ðC n H m Þ include research being carried out on steam reforming, CO 2 reforming and partial oxidation reforming [1].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on partial oxidation of methane to produce hydrogen using low-temperature plasma in AC Glidarc discharge

Kim

Chun

2008

Int. J. Energy Res.

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SUMMARYA reformer using low-temperature plasma was designed and developed for hydrogen production. The reformer has three electrodes and uses AC gliding arc discharge.A reference condition, which is the highest hydrogen production, has a O 2 =C ratio of 0.45, input flow rate of 4:9 l min À1 and power supply of 1 kW. And the methane conversion rate, the high hydrogen selectivity and the reformer efficiency were 69.2, 77.8 and 35.2%, respectively.To investigate reforming characteristics, parametric studies were achieved for the gas components ratio, a gas flow rate, a reactor temperature, an input electric power and catalyst addition effect.The results are as follows: The gas components ratio was an important factor, which had maximum value. When the gas flow rate, the reactor temperature and the electric power were increased, the methane conversion rate and the hydrogen concentration also increased.

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Roles of CO2 and H2O as oxidants in the plasma reforming of aliphatic hydrocarbons

Cited by 22 publications

References 19 publications

Development and Testing of a Self-Triggered Spark Reactor for Plasma Driven Dry Reforming of Methane

Development and Testing of a Self-Triggered Spark Reactor for Plasma Driven Dry Reforming of Methane

Mechanism of In-Situ Catalytic Cracking of Biomass Tar over Biochar with Multiple Active Sites

Experimental study on partial oxidation of methane to produce hydrogen using low-temperature plasma in AC Glidarc discharge

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