Dry reforming for syngas production

Salahi, Fatemeh; Zarei-Jelyani, Fatemeh; Rahimpour, Hamid Reza; Rahimpour, Mohammad Reza

doi:10.1016/b978-0-323-91871-8.00018-0

Cited by 3 publications

(2 citation statements)

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“…Concerns regarding climate change have spurred extensive research efforts in the development of technologies aimed at reducing greenhouse gas emissions, notably carbon dioxide (CO 2 ) and methane (CH 4 ) . One emerging trend is the utilization of atmospheric nonthermal plasma (NTP) to convert CO 2 and CH 4 into valuable end products such as methanol (CH 3 OH) and synthesis gas (H 2 and CO) . Nonthermal, or nonequilibrium plasma, is characterized by its deviation from thermodynamic equilibrium, with electron temperatures higher than the temperature of heavier species such as the ions and neutrals.…”

Section: Introductionmentioning

confidence: 99%

Long-Chain Hydrocarbons from Nonthermal Plasma-Driven Biogas Upcycling

Knezevic,

Zhang,

Zhou

et al. 2024

J. Am. Chem. Soc.

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The burgeoning necessity to discover new methodologies for the synthesis of long-chain hydrocarbons and oxygenates, independent of traditional reliance on high-temperature, high-pressure, and fossil fuel-based carbon, is increasingly urgent. In this context, we introduce a nonthermal plasma-based strategy for the initiation and propagation of long-chain carbon growth from biogas constituents (CO 2 and CH 4 ). Utilizing a plasma reactor operating at atmospheric room temperature, our approach facilitates hydrocarbon chain growth up to C40 in the solid state (including oxygenated products), predominantly when CH 4 exceeds CO 2 in the feedstock. This synthesis is driven by the hydrogenation of CO 2 and/or amalgamation of CH x radicals. Global plasma chemistry modeling underscores the pivotal role of electron temperature and CH x radical genesis, contingent upon varying CO 2 /CH 4 ratios in the plasma system. Concomitant with long-chain hydrocarbon production, the system also yields gaseous products, primarily syngas (H 2 and CO), as well as liquid-phase alcohols and acids. Our finding demonstrates the feasibility of atmospheric room-temperature synthesis of long-chain hydrocarbons, with the potential for tuning the chain length based on the feed gas composition.

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Section: Introductionmentioning

confidence: 99%

Long-Chain Hydrocarbons from Nonthermal Plasma-Driven Biogas Upcycling

Knezevic,

Zhang,

Zhou

et al. 2024

J. Am. Chem. Soc.

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“…It can contain one or more of the following: N 2 , CO 2 , CH 4 , C x H y , and C x H y O z . SG is formed by the following processes: (i) partial oxidation [7,8]; (ii) wet reforming [9][10][11]; (iii) dry reforming [12][13][14]; (iv) autothermal reforming [15,16]; (v) hydrothermal gasification [17][18][19]; (vi) pyrolysis, or partial combustion, carbonization, or gasification [20][21][22][23]. SG can be manufactured from any carbonaceous (organic) material, including municipal waste.…”

Section: Introductionmentioning

confidence: 99%

Conversion of Waste Synthesis Gas to Desalination Catalyst at Ambient Temperatures

Antia¹

2023

Waste

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In this study, a continuous flow of a synthetic, dry, and acidic waste synthesis gas (WSG) (containing N2, H2, CO, CH4, and CO2) at ambient temperatures was first passed through a fixed bed reactor (FBR) containing halite + m-Fe0 and then a saline bubble column diffusion reactor (BCDR) containing m-Fe0. The FBR converted 47.5% of the CO + CH4 + CO2 into n-C0. Passage of the n-C0 into the BCDR resulted in the formation of the desalination catalyst (Fe0:Fe(a,b,c)@C0) + CH4 + CO + CO2 + CxHy, where 64% of the feed n-C0 was converted to gaseous products. The desalination pellets can remove >60% of the water salinity without producing a reject brine or requiring an external energy source. The gaseous products from the BCDR included: CxHy (where x < 6), CO, CO2, and H2.

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