Methane to acetylene conversion by employing cost-effective low-temperature arc

Kang, Hee-Seok; Lee, Dae Hoon; Kim, Kwan-tae; Jo, Sungkwon; Pyun, Sunghyun; Song, Young‐Hoon; Yu, Sangseok

doi:10.1016/j.fuproc.2016.02.028

Cited by 38 publications

(10 citation statements)

References 33 publications

(37 reference statements)

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“…3,4 One of the methanol-based prospective monomers and chemicals is known to be methyl vinyl ether (MVE), mainly manufactured by vinylation of methanol with acetylene. [5][6][7][8] The latter is also an industrially multi-thousand ton raw material, produced both from methane, [9][10][11] coal and biomass (via calcium carbide, CaC 2 ). [12][13][14] Furthermore, CaC 2 is now rated as a renewable source for a number of commodity chemicals.…”

Section: Introductionmentioning

confidence: 99%

Towards C1 chemistry: methanol vinylation by CaC₂ in water in the presence of potassium or sodium carbonates

Паршина

Опарина

Гусарова

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Methyl vinyl ether (MVE), which polymers and copolymers are widely used in industry and medical chemistry, is produced mainly through base‐catalysed vinylation of methanol with acetylene under pressure. The most well‐known and sustainable acetylene source is calcium carbide. Significant economic benefits can be achieved by using calcium carbide as the source of acetylene directly in the industrial production of MVE. RESULTS Eco‐friendly and operationally simple method for vinylation of methanol, one of a major objects of C1 chemistry, using calcium carbide in water in the presence of potassium or sodium carbonates (140–150 °C, 1‐L steel rotating autoclave, maximum autogenic pressure 18–30 atm) has been developed and realized on 10‐g scale. The major co‐product of this reaction is a mixture of calcium hydroxide and calcium carbonate with minor content of potassium or sodium carbonates, which can be safely used for improving acidic soils. CONCLUSION Novel efficient method for vinylation of methanol with calcium carbide in water in the presence of alkali metal carbonates has been developed. The method allows avoiding acetylene gas under pressure that demands special equipment and safety measures. The major advantages of this technology are also availability and low cost of the catalysts. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Towards C1 chemistry: methanol vinylation by CaC₂ in water in the presence of potassium or sodium carbonates

Паршина

Опарина

Гусарова

et al. 2019

J of Chemical Tech & Biotech

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“…CH4 can be converted into added value products either in two steps, via synthesis gas [9], or directly to C2 hydrocarbons in one step. Pyrolysis [10,11], partial oxidation [12,13], dry [14,15] and steam reforming [16] constitute CH4 valorization processes of great commercial interest [17].…”

Section: Introductionmentioning

confidence: 99%

Low energy cost conversion of methane to ethylene in a hybrid plasma-catalytic reactor system

Delikonstantis

Scapinello

Stefanidis

2018

Fuel Processing Technology

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In this work, we report on low energy cost methane conversion to ethylene in a hybrid plasmacatalytic reactor system. Methane is first converted to acetylene, reaching up to 23.5% yield per pass, by a nanosecond pulsed discharge (NPD), and subsequently, acetylene is hydrogenated to ethylene using a Pd-based catalyst, which is placed in the post-plasma zone. Overall, ethylene is formed as major product at 25.7% yield per pass, consuming 1642 kJ/molC2H4 , which is the lowest energy cost reported for plasma-assisted methane-to-ethylene conversion so far. The two-step process is carried out in a single reactor volume that aside from the discharge energy does not require any heat or hydrogen input since both are provided by methane cracking in the plasma zone itself.

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“…Chem. 2021, 2, FOR PEER REVIEW 10 In this hypothetical bio-based route, methane is first produced by AD and then partially oxidised, generating acetylene (and syngas) [29,30]. Acetylene is reacted with two equivalents of ABE fermentation-sourced acetone using xylene as a solvent and potassium isobutoxide (KO i Bu) as a recoverable base to yield an alkyne hexanediol (AHD, Scheme 5).…”

Section: Route 3-via Bio-acetylene and Bio-acetonementioning

confidence: 99%

Greenness Assessment and Synthesis for the Bio-Based Production of the Solvent 2,2,5,5-Tetramethyloxolane (TMO)

Byrne

Clark

Angelici

et al. 2021

Sustainable Chemistry

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2,2,5,5-tetramethyloxolane (TMO) has recently been identified and demonstrated as a safer solvent to replace toluene, THF, and hydrocarbons in a handful of applications. Herein, several bio-based routes to TMO are presented and assessed for greenness, assisted by the CHEM21 Metrics Toolkit and BioLogicTool plots. Using glucose as a common starting point, two chemocatalytic routes and two biochemical routes to TMO were identified and the pathways compared using the aforementioned tools. In addition, bio-based TMO was synthesised via one of these routes; from methyl levulinate supplied by Avantium, a by-product of the sugar dehydration step during the production of 2,5-furandicarboxylic acid. First, methyl levulinate underwent triple methylation using methyl magnesium chloride (MeMgCl) to yield 2,5-dimethylhexane-2,5-diol (DHL) in high yields of 89.7%. Then DHL was converted to high purity TMO (>98.5%) by cyclodehydration using H-BEA zeolites based on the previously reported approach. Bio-based content of this TMO was confirmed by ASTM D6866-20 Method B and found to have 64% bio-based carbon, well above the threshold of 25% set by CEN/TC 411 standards and matching the anticipated content. This study represents the first demonstration of a bio-based synthesis of TMO and confirmation of bio-content by accepted standards.

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Methane to acetylene conversion by employing cost-effective low-temperature arc

Cited by 38 publications

References 33 publications

Towards C1 chemistry: methanol vinylation by CaC₂ in water in the presence of potassium or sodium carbonates

Towards C1 chemistry: methanol vinylation by CaC₂ in water in the presence of potassium or sodium carbonates

Low energy cost conversion of methane to ethylene in a hybrid plasma-catalytic reactor system

Greenness Assessment and Synthesis for the Bio-Based Production of the Solvent 2,2,5,5-Tetramethyloxolane (TMO)

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Methane to acetylene conversion by employing cost-effective low-temperature arc

Cited by 38 publications

References 33 publications

Towards C1 chemistry: methanol vinylation by CaC2 in water in the presence of potassium or sodium carbonates

Towards C1 chemistry: methanol vinylation by CaC2 in water in the presence of potassium or sodium carbonates

Low energy cost conversion of methane to ethylene in a hybrid plasma-catalytic reactor system

Greenness Assessment and Synthesis for the Bio-Based Production of the Solvent 2,2,5,5-Tetramethyloxolane (TMO)

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Towards C1 chemistry: methanol vinylation by CaC₂ in water in the presence of potassium or sodium carbonates

Towards C1 chemistry: methanol vinylation by CaC₂ in water in the presence of potassium or sodium carbonates