Methane decomposition by plasma-packed bed non-thermal plasma reactor

Chawdhury, Piu; Rawool, Sarita Bhanudas; Rao, M. Umamaheswara; Subrahmanyam, Ch.

doi:10.1016/j.ces.2022.117779

Cited by 16 publications

(5 citation statements)

References 32 publications

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“…Alumina is also used as catalyst support in DBD reactors. Many active metals were investigated for the purpose of methane pyrolysis, e.g., Pt [59], Cu/Zn [55], Pd [52,62], and Ni [63]. In all of this work, a typical cylindrical, atmospheric-pressure reactor was used, usually with a packed catalyst bed.…”

Section: Two-stage Dbd Thermal Reactormentioning

confidence: 99%

Methane Pyrolysis with the Use of Plasma: Review of Plasma Reactors and Process Products

Wnukowski

2023

Energies

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With the increasing role of hydrogen in the global market, new ways of hydrogen production are being sought and investigated. One of the possible solutions might be the plasma pyrolysis of methane. This approach provides not only the desired hydrogen, but also valuable carbon-containing products, e.g., carbon black of C2 compounds. This review gathers information from the last 20 years on different reactors that were investigated in the context of methane pyrolysis, emphasizing the different products that can be obtained through this process.

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Section: Two-stage Dbd Thermal Reactormentioning

confidence: 99%

Methane Pyrolysis with the Use of Plasma: Review of Plasma Reactors and Process Products

Wnukowski

2023

Energies

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“…[441] Figure 21a shows the DBD, one of the most widely utilized NTP sources for chemical reactions, because it is easily scaled up and combined with catalysts. [26,436,440,442] Indeed, a physically-based model of the DBD reactor revealed that OH and O radicals produced by the dissociative electron-impact reactions could boost CH 4 conversion, making water a key abatement promoter in the plasma process. [440,443] For instance, the Ni-DBD combination led to CH 4 conversions of 18-20%, as shown in (Figure 21b), emphasizing again the interaction between the DBD and Ni catalyst to boost the reaction.…”

Section: Nonthermal Plasma Activation Of Methanementioning

confidence: 99%

“…[ 441 ] Figure 21 a shows the DBD, one of the most widely utilized NTP sources for chemical reactions, because it is easily scaled up and combined with catalysts. [ 26 , 436 , 440 , 442 ] Indeed, a physically‐based model of the DBD reactor revealed that OH and O radicals produced by the dissociative electron‐impact reactions could boost CH 4 conversion, making water a key abatement promoter in the plasma process. [ 440 , 443 ]…”

Section: Catalytic Activation Of Methane At Relatively Low Temperaturementioning

confidence: 99%

Current Progress on Methods and Technologies for Catalytic Methane Activation at Low Temperatures

et al. 2022

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Methane (CH 4 ) is an attractive energy source and important greenhouse gas. Therefore, from the economic and environmental point of view, scientists are working hard to activate and convert CH 4 into various products or less harmful gas at low-temperature. Although the inert nature of C-H bonds requires high dissociation energy at high temperatures, the efforts of researchers have demonstrated the feasibility of catalysts to activate CH 4 at low temperatures. In this review, the efficient catalysts designed to reduce the CH 4 oxidation temperature and improve conversion efficiencies are described. First, noble metals and transition metal-based catalysts are summarized for activating CH 4 in temperatures ranging from 50 to 500 °C. After that, the partial oxidation of CH 4 at relatively low temperatures, including thermocatalysis in the liquid phase, photocatalysis, electrocatalysis, and nonthermal plasma technologies, is briefly discussed. Finally, the challenges and perspectives are presented to provide a systematic guideline for designing and synthesizing the highly efficient catalysts in the complete/partial oxidation of CH 4 at low temperatures.

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“…6 However, even at an elevated temperature (>400 °C), these processes usually end up with low methane conversion, 7 while the high reaction temperature may also cause severe coke formation and poor selectivity of desired products. 8,9 To utilize methane at a mild condition with boosted conversion, several novel techniques have been wellinvestigated in the last few decades, including plasmacatalysis, 10,11 electro-catalysis, 12,13 and photo-catalysis. 14,15 Out of all these processes, non-thermal plasma (NTP) is considered as the most promising one in consideration of its high methane conversion, and more importantly, it is considered as a promising technique that could be potentially scaled up for industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Non-thermal plasma assisted non-oxidative methane liquefaction for fuel production at near ambient conditions

Meng

Song

2023

Catal. Sci. Technol.

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Methane decomposition by plasma-packed bed non-thermal plasma reactor

Cited by 16 publications

References 32 publications

Methane Pyrolysis with the Use of Plasma: Review of Plasma Reactors and Process Products

Methane Pyrolysis with the Use of Plasma: Review of Plasma Reactors and Process Products

Current Progress on Methods and Technologies for Catalytic Methane Activation at Low Temperatures

Non-thermal plasma assisted non-oxidative methane liquefaction for fuel production at near ambient conditions

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