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Journal articles on the topic 'Methane Conversion - Hydrogen'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Vodopyanov A.V., Mansfeld D.A., Sintsov S.V., et al. "Plasmolysis of methane using a high-frequency plasma torch." Technical Physics Letters 48, no. 12 (2022): 29. http://dx.doi.org/10.21883/tpl.2022.12.54942.19383.

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The possibility of converting methane into hydrogen using a high-frequency induction plasma torch at the atmospheric pressure has been experimentally studied. The dependencies of the degree of methane conversion and the rate of hydrogen production were studied depending on the process conditions. It has been demonstrated that the degree of the methane-to-hydrogen conversion can reach values close to 100%. Keywords: methane plasmolysis, HF plasma torch, hydrogen.

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2

Kushch, S. D., V. E. Muradyan, and N. S. Kuyunko. "Methane Conversion over Vacuum Carbon Black: Influence of Hydrogen." Eurasian Chemico-Technological Journal 3, no. 3 (2017): 163. http://dx.doi.org/10.18321/ectj560.

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<p>Methane pyrolysis over vacuum carbon black has been studied in the temperature range 550–1000 °C. The methane conversion degree and selectivity with respect to ethene and propene do not depend on the initial concentration of methane <em>i.e. </em>the process order with respect to methane is first. The selectivity with respect to pyrolytic carbon is antibate to the methane initial concentration. Hydrogen introduced to methane inhibits formation of pyrolytic carbon and aromatics especially in methane pyrolysis. The methane conversion degree in pyrolysis of methane/hydrogen m

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3

Водопьянов, А. В., Д. А. Мансфельд, С. В. Синцов та ін. "Плазмолиз метана при помощи высокочастотного плазмотрона". Письма в журнал технической физики 48, № 23 (2022): 34. http://dx.doi.org/10.21883/pjtf.2022.23.53950.19383.

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The possibility of converting methane into hydrogen using a high-frequency induction plasma torch at atmospheric pressure has been experimentally studied. The dependencies of the degree of methane conversion and the rate of hydrogen production were studied depending on the process conditions. It has been demonstrated that the degree of conversion of methane to hydrogen can reach values close to 100%.

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4

Skakov, M. K., T. R. Tulenbergenov, I. A. Sokolov, A. Zh Miniyazov, and A. A. Agatanova. "EXPERIMENTAL STUDY OF METHANE CONVERSION IN A MICROWAVE DISCHARGE." NNC RK Bulletin, no. 3 (September 30, 2024): 123–28. http://dx.doi.org/10.52676/1729-7885-2024-3-123-128.

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This paper presents the results of experiments on the production of hydrogen by methane pyrolysis using a microwave discharge at the PM-6 installation for applied research. For the first time, experimental results on the effect of installation parameters (microwave discharge power, gas ratio) on the efficiency of natural gas conversion to hydrogen have been obtained. The technology of hydrogen production using a microwave discharge, with a maximum methane conversion rate of up to 82% and hydrogen selectivity of up to 15%, has been implemented. The results of the conducted studies on hydrogen p

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5

Garcia-Villalva, Rolando, Martí Biset-Peiró, Andreina Alarcón, Carmen Bacariza, Sebastián Murcia-López, and Jordi Guilera. "Comparison of methane reforming routes for hydrogen production using dielectric barrier discharge plasma-catalysis." International Journal of Hydrogen Energy 59 (March 15, 2024): 1367–75. https://doi.org/10.1016/j.ijhydene.2024.02.161.

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Methane reforming is an interesting resource for obtaining hydrogen. DBD plasma-catalysis allows a direct use of electricity for methane reforming reactions, such as direct methane reforming (MR), dry methane reforming (DMR) and steam methane reforming (SMR). In this work, the first comprehensive comparison of these three routes for hydrogen production is experimentally and systematically investigated using dielectric barrier discharge (DBD) plasma and various catalyst formulations. Among the three routes, SMR is the most effective, achieving significantly higher methane co

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Marquardt, Tobias, Sebastian Wendt, and Stephan Kabelac. "Impact of Carbon Dioxide on the Non-Catalytic Thermal Decomposition of Methane." ChemEngineering 5, no. 1 (2021): 12. http://dx.doi.org/10.3390/chemengineering5010012.

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Economically and ecologically, the thermal decomposition of methane is a promising process for large scale hydrogen production. In this experimental study, the non-catalytic decomposition of methane in the presence of small amounts of carbon dioxide was analyzed. At large scales, natural gas or biomethane are possible feedstocks for the thermal decomposition and can obtain up to 5% carbon dioxide. Gas recycling can increase the amount of secondary components even further. Experiments were conducted in a packed flow reactor at temperatures from 1250 to 1350 K. The residence time and the amounts

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7

Myltykbayeva, L. K., K. Dossumov, G. E. Yergaziyeva, et al. "Catalysts for methane conversion process." BULLETIN of the L.N. Gumilyov Eurasian National University. Chemistry. Geography. Ecology Series 134, no. 1 (2021): 44–53. http://dx.doi.org/10.32523/2616-6771-2021-134-1-44-53.

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The article describes current trends in the catalytic processing of natural gas such as partial and deep, also steam oxidation of methane and methane decomposition. Kazakhstan is rich in large energy resources. Therefore, it is important to create new gas chemical technologies that will allow gas resources to produce valuable chemical products. Currently, processes based on these reactions have not been introduced into production. There are highlighted catalyst systems for each reaction that provides good performance. The oxide catalysts based on metals of variable valency are effective in all

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8

Wang, Chang Mei, Wu Di Zhang, Yu Bao Chen, et al. "The Efficiency of Material Utilization and Energy Conversion of Biogas Fermentation by Annua." Advanced Materials Research 621 (December 2012): 273–77. http://dx.doi.org/10.4028/www.scientific.net/amr.621.273.

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This paper used annua as material to do a biogas fermentation experiment. The result suggests that biogas-fermentation by pretreated annua is a preferable approach compared with methane production followed by hydrogen production, only methane production, or only hydrogen production, due to its decreasing overall fermentation time, and increasing material utilization efficiency and energy conversion efficiency. It shows that the TS and VS utilization ratio of first hydrogen production then methane production is higher than that of first methane production then hydrogen production.

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9

Zhao, Te, Chusheng Chen, and Hong Ye. "CFD Simulation of Hydrogen Generation and Methane Combustion Inside a Water Splitting Membrane Reactor." Energies 14, no. 21 (2021): 7175. http://dx.doi.org/10.3390/en14217175.

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Hydrogen production from water splitting remains difficult due to the low equilibrium constant (e.g., Kp ≈ 2 × 10−8 at 900 °C). The coupling of methane combustion with water splitting in an oxygen transport membrane reactor can shift the water splitting equilibrium toward dissociation by instantaneously removing O2 from the product, enabling the continuous process of water splitting and continuous generation of hydrogen, and the heat required for water splitting can be largely compensated for by methane combustion. In this work, a CFD simulation model for the coupled membrane reactor was devel

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Nahmatova, G. Ch, L. M. Gasanova, and T. M. Nagiev. "MECHANISM AND KINETICS OF DIRECT OXIDATION OF METHANE TO METHANOL BY HYDROGEN PEROXIDE ON A BIOMIMETIC CATALYST IN THE CONTEXT OF COHERENTLY SYNCHRONIZED REACTIONS." Azerbaijan Chemical Journal, no. 3 (June 24, 2025): 54–62. https://doi.org/10.32737/0005-2531-2025-3-54-62.

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The biomimetic catalyst penta-FTPhPFe(III)OH/Al2O3 was synthesized by adsorption of the active complex FTPhPFe(III)OH on Al2O3 from a solution in dimethylformamide The active complex concentration relative to the Al2O3 mass was 0.64 mg/g. Activity of penta- FTPhPFe(III)/Al2O3 biomimetic catalyst in the reaction of methane direct conversion into methanol by green oxidant hydrogen peroxide was studied at the t=150-350°C and atmospheric pressure, where methanol yield was 19.2% with methane conversion of 28%. The kinetic investigation of methane biomimetic monooxidation reaction with hydrogen pero

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11

Sasidhar, Nallapaneni. "In-situ and Ex-situ Conversion of Coal to Methane using Hydrogen." Indian Journal of Energy and Energy Resources 4, no. 3 (2025): 1–5. https://doi.org/10.54105/ijeer.c1044.04030525.

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This paper explains a process to produce methane using coal, steam, and hydrogen by autothermal reactions. In coal gasification, oxygen is used to burn extra coal for providing the necessary energy to the process. The proposed process uses hydrogen in place of oxygen to provide the necessary energy to produce methane. The process uses fossil coal as a feedstock only and not as a fuel. Both ex-situ and in-situ methods are feasible to produce methane/natural gas from coal and green hydrogen. For one unit mass of hydrogen, nearly 24 times methane production is feasible. The required carbon-neutra

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Nallapaneni, Sasidhar. "In-situ and Ex-situ Conversion of Coal to Methane using Hydrogen." Indian Journal of Energy and Energy Resources (IJEER) 4, no. 3 (2025): 1–5. https://doi.org/10.54105/ijeer.C1044.04030525.

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<strong>Abstract: </strong>This paper explains a process to produce methane using coal, steam, and hydrogen by autothermal reactions. In coal gasification, oxygen is used to burn extra coal for providing the necessary energy to the process. The proposed process uses hydrogen in place of oxygen to provide the necessary energy to produce methane. The process uses fossil coal as a feedstock only and not as a fuel. Both ex-situ and in-situ methods are feasible to produce methane/natural gas from coal and green hydrogen. For one unit mass of hydrogen, nearly 24 times methane production is feasible.

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13

Ye, Jian Wen, Dong Lai Xie, Zhenhua Yang, and Zhiyu Cao. "Simulation of Fluidized Bed Oxygen Permeable Membrane Reactors for Hydrogen Production from Natural Gas." Advanced Materials Research 608-609 (December 2012): 1467–71. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.1467.

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Hydrogen is an important chemical commodity. Fluidized bed oxygen permeable membrane reactor is a novel technology for hydrogen production from natural gas reforming. An Aspen model is built for this novel reactor. Influences of reaction pressure, oxygen to carbon ratio, and steam to carbon ratio on the hydrogen concentration in syn-gas, hydrogen yield, and reaction temperature and methane conversion are studied. The results are compared with the ordinary fluidized bed reactor. It shows that the fluidized bed oxygen permeable membrane reactor has a higher methane conversion and a hydrogen yiel

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14

Lu, Yi-heng, Kang Li, and Yu-wei Lu. "Microwave-assisted direct synthesis of butene from high-selectivity methane." Royal Society Open Science 4, no. 12 (2017): 171367. http://dx.doi.org/10.1098/rsos.171367.

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Methane was directly converted to butene liquid fuel by microwave-induced non-oxidative catalytic dehydrogenation under 0.1–0.2 MPa. The results show that, under microwave heating in a two-stage fixed-bed reactor, in which nickel powder and NiO x –MoO y /SiO 2 are used as the catalyst, the methane–hydrogen mixture is used as the raw material, with no acetylene detected. The methane conversion is more than 73.2%, and the selectivity of methane to butene is 99.0%. Increasing the hydrogen/methane feed volume ratio increases methane conversion and selectivity. Gas chromatography/electron impact io

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15

Belikov, A. E., V. A. Mal’tsev, O. A. Nerushev, S. A. Novopashin, S. Z. Sakhapov, and D. V. Smovzh. "Methane conversion into hydrogen and carbon nanostructures." Journal of Engineering Thermophysics 19, no. 1 (2010): 23–30. http://dx.doi.org/10.1134/s1810232810010042.

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16

Yin, Fang, Wu Di Zhang, Ling Xu, Jing Liu, Hong Yang, and Xing Ling Zhao. "Contribution of H₂ during the Two-Phase Anaerobic Digestion." Advanced Materials Research 908 (March 2014): 235–38. http://dx.doi.org/10.4028/www.scientific.net/amr.908.235.

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In the process of anaerobic digestion for methane production, one-third of which is from hydrogen, another two-thirds from acetic acid. From the point of material and energy recovery, the energy conversion efficiency of alone hydrogen or methane production is less than co-generation of hydrogen and methane production. Because hydrogen production is also accompanied by acidification and syntrophic acetogenic fermentation process, it is technically feasible for alone hydrogen or methane production. As the two-phase anaerobic digestion separate the acidifying bacteria and methanogens in different

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17

Liu, Mengying, Zeai Huang, Yunxiao Zhou, et al. "Optimized Process for Melt Pyrolysis of Methane to Produce Hydrogen and Carbon Black over Ni Foam/NaCl-KCl Catalyst." Processes 11, no. 2 (2023): 360. http://dx.doi.org/10.3390/pr11020360.

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Methane pyrolysis transforming CH4 into hydrogen without a CO2 byproduct is a potential hydrogen production process under the net-zero emission target. The melt pyrolysis of methane is a technology that could simultaneously obtain hydrogen and carbon products. However, its catalytic activity and stability are still far from satisfactory. In this work, a new strategy for the melt pyrolysis of methane to hydrogen production was proposed using Ni foam and molten NaCl-KCl. The increase in the amount of Ni foam was found to enhance the methane conversion rate from 12.6% to 18%. The process was opti

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18

Konno, Katsuya, Kaoru Onoe, Yasuyuki Takiguchi, and Tatsuaki Yamaguchi. "Effect of Coexistent Hydrogen on the Selective Production of Ethane by Dehydrogenative Methane Coupling through Dielectric-Barrier Discharge under Ordinary Pressure at an Ambient Temperature." Journal of Fuels 2014 (January 1, 2014): 1–5. http://dx.doi.org/10.1155/2014/286392.

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The effect of coexistence of hydrogen on the product selectivity to ethane from methane by dielectric-barrier discharge (DBD) reactor was examined experimentally under ordinary pressure without use of catalyst and external heating. By the dilution of methane with hydrogen, both the increase of methane conversion and the decrease of alkene production were observed, improving the selectivities to ethane by ca. 70%.

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19

Amine, Nedjar Yahia Mohamed, Mostefaoui Mohamed, and Benyoucef Djilali. "Investigation of Ar/CH₄ Mixtures in Dielectric Barrier Discharge: A Simulation Approach for Hydrogen Production." Bulletin of Chemical Reaction Engineering & Catalysis 20, no. 3 (2025): 458–70. https://doi.org/10.9767/bcrec.20352.

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This modeling study aimed to simulate hydrogen production through dielectric barrier discharge (DBD) in an argon-methane mixture at atmospheric pressure. Argon was selected as an additive due to its high ionization potential, which is expected to facilitate methane dissociation and enhance plasma reactivity. A series of simulations were conducted to assess the impact of varying argon concentrations (ranging from 0% to 90%) on hydrogen generation. A one-dimensional fluid model was employed to investigate methane conversion within the DBD reactor. This approach enabled a comprehensive evaluation

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20

Ahmed, Hamid, Anis H. Fakeeha, Fayez M. Al-Alweet, et al. "Alumina Coated with Titanium Dioxide Supported Iron for Hydrogen Production and Carbon Nanotubes via Methane Decomposition." Catalysts 15, no. 2 (2025): 122. https://doi.org/10.3390/catal15020122.

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Research on converting methane to hydrogen has gained more attention due to the availability of methane reserves and the global focus on sustainable and environmentally friendly energy sources. The decomposition of methane through catalysis (CDM) has excellent potential to produce clean hydrogen and valuable carbon products. However, developing catalysts that are both active and stable is a highly challenging area of research. Using titanium isopropoxide as a precursor and different loadings of TiO2 (10 wt.%, 20 wt.%, and 30 wt.%), alumina has been coated with TiO2 in a single-step hydrotherma

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21

Karim, G. A., and G. Zhou. "The Uncatalyzed Partial Oxidation of Methane for the Production of Hydrogen With Recirculation." Journal of Energy Resources Technology 115, no. 4 (1993): 307–13. http://dx.doi.org/10.1115/1.2906437.

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The combustion of rich mixtures of methane representing natural gas in air or oxygenated air involving the uncatalyzed partial oxidation of methane is examined analytically with the view of hydrogen and/or synthesis gas (carbon monoxide and hydrogen) production from natural gas. This is carried out in turn for isothermal, constant pressure and constant volume combustion processes over the feed temperature range of 800–2000K and equivalence ratio of up to 3.5. The role of various operating parameters in establishing the yield of hydrogen is presented and discussed. The effectiveness of the cont

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22

Matus, Е. V., I. Z. Ismagilov, E. S. Mikhaylova, and Z. R. Ismagilov. "Hydrogen Production from Coal Industry Methane." Eurasian Chemico-Technological Journal 24, no. 2 (2022): 69. http://dx.doi.org/10.18321/ectj1320.

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Coal industry methane is a fossil raw material that can serve as an energy carrier for the production of heat and electricity, as well as a raw material for obtaining valuable products for the chemical industry. To ensure the safety of coal mining, rational environmental management and curbing global warming, it is important to develop and improve methods for capturing and utilizing methane from the coal industry. This review looks at the scientific basis and promising technologies for hydrogen production from coal industry methane and coal production. Technologies for catalytic conversion of

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23

Neuschitzer, David, David Scheiblehner, Helmut Antrekowitsch, Stefan Wibner, and Andreas Sprung. "Methane Pyrolysis in a Liquid Metal Bubble Column Reactor for CO2-Free Production of Hydrogen." Energies 16, no. 20 (2023): 7058. http://dx.doi.org/10.3390/en16207058.

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In light of the growing interest in hydrogen as an energy carrier and reducing agent, various industries, including the iron and steel sector, are considering the increased adoption of hydrogen. To meet the rising demand in energy-intensive industries, the production of hydrogen must be significantly expanded and further developed. However, current hydrogen production heavily relies on fossil-fuel-based methods, resulting in a considerable environmental burden, with approximately 10 tons of CO2 emissions per ton of hydrogen. To address this challenge, methane pyrolysis offers a promising appro

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Lee, Sunggeun, and Hankwon Lim. "Variation of the Number of Heat Sources in Methane Dry Reforming: A Computational Fluid Dynamics Study." International Journal of Chemical Engineering 2021 (November 24, 2021): 1–15. http://dx.doi.org/10.1155/2021/4737513.

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To overcome the weak point of the gas type heating (failure in heating uniformly and persistently), liquid type molten salt as a concentration of solar energy was considered as a heat source for dry reforming. This high-temperature molten salt flowing through the center of the tubular reactor supplies necessary heat. The dependence on the number of heat source of the hydrogen production was investigated under the assumption of the fixed volume of the catalyst bed. By changing these numbers, we numerically investigated the methane conversion and hydrogen flow rate to find the best performance.

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25

Nguyen, Trung Kim, Luis Razon, Raymond Tan, Hai-Ung Tran, Hirofumi Hinode та Takashi Aida. "REGRESSION-BASED OPTIMIZATION OF THE PARTIAL OXIDATION OF METHANE ON NIMGO/Α-ALUMINA MONOLITH CATALYST IN A REVERSE-FLOW REACTOR". ASEAN Engineering Journal 2, № 1 (2012): 34–52. http://dx.doi.org/10.11113/aej.v2.15353.

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This study describes the use of statistical optimization techniques on a laboratory scale reverse flow reactor for the catalytic partial oxidation of methane on Ni-MgO/α-alumina monolith catalyst. The effects of initial temperature (Tini), switching time (τ), total flow rate (F), mole fraction of methane (M), and catalyst length on hydrogen yield and methane conversion are investigated using systematic experimental design. In the first experimental phase, the steepest ascent path was established by ridge analysis to determine the stationary point. The optimum operating conditions were determin

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Nguyen, Trung Kim, Luis Razon, Raymond Tan, Hai-Ung Tran, Hirofumi Hinode та Takashi Aida. "REGRESSION-BASED OPTIMIZATION OF THE PARTIAL OXIDATION OF METHANA ON Ni-MgO/α-ALUMINA MONOLITH CATALYST IN A REVERSE-FLOW REACTER". ASEAN Engineering Journal 3, № 1 (2012): 28–46. http://dx.doi.org/10.11113/aej.v3.15518.

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This study describes the use of statistical optimization techniques on a laboratory scale reverse flow reactor for the catalytic partial oxidation of methane on Ni-MgO/α-alumina monolith catalyst. The effects of initial temperature (Tini), switching time (τ), total flow rate (F), mole fraction of methane (M), and catalyst length on hydrogen yield and methane conversion are investigated using systematic experimental design. In the first experimental phase, the steepest ascent path was established by ridge analysis to determine the stationary point. The optimum operating conditions were determin

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27

LASHINA, E. A., E. E. PESKOVA, and V. N. SNYTNIKOV. "MATHEMATICAL MODELLING OF THE DYNAMICS OF THERMAL CONVERSION OF METHANE-ETHANE MIXTURES IN A WIDE TEMPERATURE RANGE." Chemistry for Sustainable Development 31, no. 3 (2023): 278–86. http://dx.doi.org/10.15372/csd2023467.

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A compact mechanism based on elementary radical reactions is proposed for the temperature conversion of methane-ethane mixtures. The kinetic model relying on this mechanism describes the literature data on the conversion of methane and ethane at millisecond time intervals in the temperature range 600-1400 °C. Within the kinetic model, the time dependences of the concentrations of hydrogen, ethylene, acetylene and benzene on the temperature and on the methane/ethane ratio in the initial mixture are determined in the isothermal approximation. Using the proposed mechanism for the calculations of

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Yakovenko, R. E., V. B. Ilyin, A. P. Savostyanov, I. N. Zubkov, A. V. Dulnev, and O. A. Semyonov. "Conversion of Liquefied Hydrocarbon Gases on Commercial Nickel Catalysts." Kataliz v promyshlennosti 19, no. 6 (2019): 455–64. http://dx.doi.org/10.18412/1816-0387-2019-6-455-464.

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The two-step conversion of industrial liquefied hydrocarbon gases (LHG) on NIAP-07-01 (NKM-1) and NIAP-03-01 catalysts for the production of hydrogen-containing gases was investigated. The experiments were carried out in flow reactors with a fixed catalyst bed at a pressure of 0.1 MPa under the following conditions: temperature 350–450 °C, gas hourly space velocity (GHSV) 1000–3000 h–1, steam-gas ratio 4 : 1–8 : 1 (pre-reforming); and temperature 700 °C, GHSV 2000 h–1, air-gas ratio 1.2 : 1 (steam-air reforming). Under the studied conditions, the concentrations of components of the converted g

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Madon, Rais Hanizam, Mas Fawzi, Khairul Ilman Sarwani, Shahrul Azmir Osman, Mohd Azahari Razali, and Abdul Wahab Mohammad. "Effect of Steam to Carbon Ratio (S:C) on Steam Methane Reforming’s yield over Coated Nickel Aluminide (Ni<sub>3</sub>Al) Catalyst in Micro Reactor." Jurnal Kejuruteraan 32, no. 4 (2020): 657–62. http://dx.doi.org/10.17576/jkukm-2020-32(4)-14.

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This work looks into the effect of Steam to Carbon ratio (S:C) on methane (CH4) conversion and hydrogen (H2) yield over coated Nickel Aluminide (Ni3Al) catalyst in micro reactor. The Ni3Al is an intermetallic alloy which known to have good catalytic activity and selectivity. The Ni3Al catalyst precursor was prepared through dip coating technique at 10wt% on top of substrate plate and characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope-Energy Dispersive X-Ray Spectroscopy (SEM-EDX), Temperature Programming Reduction (TPR), activated by H2 reduction, and catalytic activity tes

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Nagai, Masatoshi, and Kenji Matsuda. "Hydrogen Production from Methane Conversion on Molybdenum Nitride." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 39, no. 5 (2006): 575–79. http://dx.doi.org/10.1252/jcej.39.575.

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Sivakumar, Ganesan, Abhijith Karattil Suresh, Debjani Nag, Pratik Swarup Dash, and Ekambaram Balaraman. "Catalysis-driven methane conversion to carbon and hydrogen." International Journal of Hydrogen Energy 121 (April 2025): 42–69. https://doi.org/10.1016/j.ijhydene.2025.03.270.

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Ma, P. Y., Zhi Guo Tang, Y. L. Li, C. H. Nie, X. Z. He, and Q. Z. Lin. "Conversion of Natural Gas to Hydrogen under Super Adiabatic Rich Combustion." Advanced Materials Research 105-106 (April 2010): 701–5. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.701.

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Interest in fuel cells in recent years has promoted the development of hydrogen sources. Methane (the main composition of natural gas) is an optimal fuel for hydrogen production due to its rich resource and its high ratio of hydrogen to carbon. In this work, several hydrogen processes, such as steam reforming of methane, partial oxidation, and auto thermal reforming, were reviewed. Different processes exhibit different importance for hydrogen production due to their diversity on usages. In this paper the special method of natural hydrogen production from natural gas with super adiabatic rich c

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Tang, Qiming, Muhammad Saqib, Aniqa Anjum, Keith Duncan, and Eric D. Wachsman. "Direct Non-Oxidative Methane Conversion and Hydrogen Co-Production in a Proton Conducting Membrane Reactor." ECS Meeting Abstracts MA2024-01, no. 37 (2024): 2143. http://dx.doi.org/10.1149/ma2024-01372143mtgabs.

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Direct Non-oxidation Methane Conversion (DMNC) has been recognized a promising technology for the upgrading of cheap and abundant methane to higher hydrocarbons (C2+) and H2, but this technology has not been commercialized yet because of the low methane equilibrium conversion and severe carbon deposition.1-3 Here, we present our effort to develop a proton conducting membrane reactor (SrCe0.7Zr0.2Eu0.1O3- ⴃ) combined with the catalysts (Fe©SiO2) to circumvent the equilibrium limitations of the DMNC reaction and solve the coking (i.e., solid carbon deposition) problem. By coupling the Fe©SiO2 ca

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Arifin, Rizal, Fikrun Najib Muzakki, Yoyok Winardi, et al. "Investigation of Reaction Dynamics of Methane Reforming on Nickel Clusters Using Molecular Dynamics Simulations." Journal of Engineering and Technological Sciences 57, no. 1 (2025): 66–77. https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.5.

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This study employed molecular dynamics simulations utilizing the ReaxFF force field to elucidate the mechanisms underlying methane decomposition and hydrogen generation on nickel clusters (Ni37, Ni55, and Ni80). The transformation of methane into valuable products, including carbon species and hydrogen molecules, is of considerable significance owing to the abundance of methane and its potential role as an atmospheric pollutant. The findings suggest that Ni37 clusters had the highest initial reactivity, although they deactivated swiftly; conversely, Ni55 and Ni80 exhibited more consistent reac

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Ghasemzadeh, Kamran, Ehsan Andalib, and Angelo Basile. "Modelling Study of Palladium Membrane Reactor Performance during Methan Steam Reforming using CFD Method." Chemical Product and Process Modeling 11, no. 1 (2016): 17–21. http://dx.doi.org/10.1515/cppm-2015-0055.

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Abstract The main aim of this study is the investigation of dense palladium membrane reactor (MR) performance during methane steam reforming (MSR) reaction using computational fluid dynamic (CFD). To this purpose, a two-dimensional isothermal CFD model was developed and its validation was realized by comparing the theoretical results with our experimental data achieved in ITM of Italy. In this work, the CFD model was presented by COMSOL- Multiphysics software version 5. The reaction rate expressions and kinetics parameters were used from literatures. According to validation results, a good agr

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Msheik, Malek, Sylvain Rodat, and Stéphane Abanades. "CFD Simulation of a Hybrid Solar/Electric Reactor for Hydrogen and Carbon Production from Methane Cracking." Fluids 8, no. 1 (2023): 18. http://dx.doi.org/10.3390/fluids8010018.

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Methane pyrolysis is a transitional technology for environmentally benign hydrogen production with zero greenhouse gas emissions, especially when concentrated solar energy is the heating source for supplying high-temperature process heat. This study is focused on solar methane pyrolysis as an attractive decarbonization process to produce both hydrogen gas and solid carbon with zero CO2 emissions. Direct normal irradiance (DNI) variations arising from inherent solar resource variability (clouds, fog, day-night cycle, etc.) generally hinder continuity and stability of the solar process. Therefor

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Hong, Kyungpyo, Stephanie Nadya Sutanto, Jeong A. Lee та Jongsup Hong. "Ni-based bimetallic nano-catalysts anchored on BaZr0.4Ce0.4Y0.1Yb0.1O3−δ for internal steam reforming of methane in a low-temperature proton-conducting ceramic fuel cell". Journal of Materials Chemistry A 9, № 10 (2021): 6139–51. http://dx.doi.org/10.1039/d0ta11359j.

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Ni–Rh and Ni–Co nano-scale alloys exhibit high methane conversion, hydrogen yield, resistance to carbon formation, and long-term stability at low temperatures, allowing them to cope with the various operating conditions of direct methane-fueled PCFCs.

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Mezaal, N. A., A. A. Kalyutik, A. S. Salman, and L. M. Abdali. "Comparison of Various Hydrogen Production Technologies from Natural Gas." Intellekt. Sist. Proizv. 21, no. 4 (2023): 101–8. http://dx.doi.org/10.22213/2410-9304-2023-4-101-108.

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The article provides an overview of the present condition and immediate future potential in the realm of hydrogen energy technologies. The paper delves into the most renowned approaches for generating hydrogen from natural gas: a) Steam-Methane Reforming (SMR); b) Partial Oxidation (POX); and c) Autothermal Reforming (ATR). Nevertheless, employing these technologies on an industrial scale requires substantial R&D efforts, often on the scale of experimental ventures. The article also examines the global energy landscape, energy sources, the historical discovery of hydrogen, and the various

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Wnukowski, Mateusz, Julia Gerber, and Karolina Mróz. "Shifts in Product Distribution in Microwave Plasma Methane Pyrolysis Due to Hydrogen and Nitrogen Addition." Methane 1, no. 4 (2022): 286–99. http://dx.doi.org/10.3390/methane1040022.

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Methane pyrolysis can produce many valuable products besides hydrogen, e.g., C2 compounds or carbon black. In the conditions provided by microwave plasma, the distribution of these products might be shifted by the addition of hydrogen and nitrogen. In this work, different ratios of H2:CH4, ranging from 0:1 to 4:1, were tested. The most unambiguous and promising result was obtained for the highest H2:CH4 ratio. For this ratio, a significant improvement in methane conversion rate was observed (from 72% to 95%) along with the increase in C2H2 and C2H4 yield and selectivity. The results support th

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Ravil Mustafin and Igor Karpilov. "Effect of the Catalyst Shapes and the Packed Bed Structure on the Efficiency of Steam Methane Reforming." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 104, no. 1 (2023): 124–40. http://dx.doi.org/10.37934/arfmts.104.1.124140.

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One of the promising technologies for on-board hydrogen production is methane steam reforming in reactor with packed bed. The study of the effect of various catalytic packing arrangements on the steam methane reforming process is of considerable interest. The present article analyses the influence of catalyst shapes and packing arrangement on steam methane reforming reactions efficiency. The reformer tube contains several packings with a changing relative position; additionally, two forms of catalysts, a ball and a cylinder, are also used. The pressure drop depending on the packing location, m

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Jiang, Shan, Che-Wei Chang, William A. Swann, Christina W. Li, and Jeffrey T. Miller. "Pt3Mn/SiO2 + ZSM-5 Bifunctional Catalyst for Ethane Dehydroaromatization." Catalysts 14, no. 6 (2024): 365. http://dx.doi.org/10.3390/catal14060365.

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Ethane dehydroaromatization (EDA) is a potentially attractive process for converting ethane to valuable aromatics such as benzene, toluene, and xylene (BTX). In this study, a Pt3Mn/SiO2 + ZSM-5 bifunctional catalyst was used to investigate the effect of dehydrogenation and the Brønsted acid catalyst ratio, hydrogen partial pressure, and reaction temperature on the product distributions for EDA. Pt3Mn/SiO2 + ZSM-5 with a 1/1 weight ratio showed the highest ethane conversion rate and BTX formation rate. Ethylene is initially formed by dehydrogenation by the Pt3Mn catalyst, which undergoes second

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Nichols, Eva M., Joseph J. Gallagher, Chong Liu, et al. "Hybrid bioinorganic approach to solar-to-chemical conversion." Proceedings of the National Academy of Sciences 112, no. 37 (2015): 11461–66. http://dx.doi.org/10.1073/pnas.1508075112.

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Natural photosynthesis harnesses solar energy to convert CO2and water to value-added chemical products for sustaining life. We present a hybrid bioinorganic approach to solar-to-chemical conversion in which sustainable electrical and/or solar input drives production of hydrogen from water splitting using biocompatible inorganic catalysts. The hydrogen is then used by living cells as a source of reducing equivalents for conversion of CO2to the value-added chemical product methane. Using platinum or an earth-abundant substitute, α-NiS, as biocompatible hydrogen evolution reaction (HER) electroca

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Vavilin, V. A., L. Ya Lokshina, S. V. Rytov, O. R. Kotsyurbenko, A. N. Nozhevnikova, and S. N. Parshina. "Modelling methanogenesis during anaerobic conversion of complex organic matter at low temperatures." Water Science and Technology 36, no. 6-7 (1997): 531–38. http://dx.doi.org/10.2166/wst.1997.0633.

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Low temperature consumption of H2/CO2 by microflora of tundra wetland soil and pond silt were simulated using the modified &lt;METHANE&gt; model with consideration of homoacetogens or hydrogen consuming methanogens as hydrogenotrophs. Simulations show that the model with homoacetogens was able to fit the data closely. Under the conditions of high initial hydrogen concentrations acetate was the main precursor of methane. Inhibition of acetoclasic methanogens proved to be significant for tundra soil samples. Methane formation from organic matter contained in the samples of tundra soil wa

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Bilera, I. V., Yu A. Lebedev, A. Yu Titov, and I. L. Epstein. "Simulation of Acetylene Formation from Methane in a Plasma Jet." Himiâ vysokih ènergij 58, no. 3 (2024): 221–32. http://dx.doi.org/10.31857/s0023119324030071.

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This work is devoted to the numerical modeling of the reaction of methane conversion to acetylene under plasma-jet pyrolysis conditions and a comparison of the obtained results with the available experimental data. The calculations were performed within the framework of the ideal plug-flow reactor model for atmospheric pressure. The analysis of the main processes of methane decomposition and acetylene formation was carried out in cases where either hydrogen or methane was used as a plasma-forming gas. The results of calculations of the main products of methane decomposition (hydrogen and acety

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Skakov, Mazhyn, Arman Miniyazov, Timur Tulenbergenov, et al. "Hydrogen production by methane pyrolysis in the microwave discharge plasma." AIMS Energy 12, no. 3 (2024): 548–60. http://dx.doi.org/10.3934/energy.2024026.

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<abstract> <p>We present the preliminary results of experimental studies on hydrogen production through methane pyrolysis. Based on the analytical review, the technology of methane pyrolysis in the plasma of a microwave discharge was chosen. To implement this method, an installation for applied research PM-6 was developed, and experimental data on the possibility of producing hydrogen was obtained. The methods of mass spectrometry and optical emission spectrometry were used to analyze the products of the methane decomposition reaction. It has been established that at a microwave fo

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Mrakin, A. N., O. V. Afanaseva, O. Yu Kuleshov, M. A. Ageev, and P. A. Batrakov. "COMPARATIVE ANALYSIS OF THERMOTECHNICAL CHARACTERISTICS COMBUSTION'S PRODUCTS OF NONPROJECT GASEOUS FUELS." DYNAMICS OF SYSTEMS, MECHANISMS AND MACHINES 10, no. 3 (2022): 55–60. http://dx.doi.org/10.25206/2310-9793-2022-10-3-55-60.

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This paper presents the results of calculating the heat exchange intensity of combustion products of various nonproject gaseous fuels using hydrogen, methane-hydrogen mixture (MHM) and thermochemical conversion gases as examples. To identify the possibility of energy utilization of generated gases in standard boiler units, a comparison with the combustion products of natural gas is carried out here. It is determined that the use of hydrogen or methane-hydrogen mixture will require either changes in the heating surface at a constant capacity, or its reduction due to changes in the thermal absor

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Trianto, Azis, Ira Santrina J. C, and Susilo Yuwono. "Simulasi produksi hidrogen melalui CO₂ methane reforming pada reaktor membran." Jurnal Teknik Kimia Indonesia 6, no. 3 (2018): 666. http://dx.doi.org/10.5614/jtki.2007.6.3.2.

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Hydrogen is a promising alternative fuel to establish environmentally friendly energy generation system. One of the methods for producing hydrogen is C02 methane reforming (CMR) process. Despite producing H2, this process also consumes CO2 enabling it to be used as a scheme for mitigating CO2. Conventionally, the hydrogen production via CMR is conducted in a fixed bed reactor. However low conversion is usually found in this kind of reactor. To increase conversion, a membrane reactor can be used. Two types of membrane may be employed to conduct this reaction, i.e. prorous vycor and nanosil memb

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Mel, Maizirwan, Fouad Riyad Hussein Abdeen, Hamzah Mohd Salleh, Sany Izan Ihsan, Fazia Adyani Ahmad Fuad, and Roy Hendroko Setyobudi. "Simulation Study of Bio-Methane Conversion into Hydrogen for Generating 500 kW of Power." MATEC Web of Conferences 164 (2018): 01027. http://dx.doi.org/10.1051/matecconf/201816401027.

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Research and development sectors have made great efforts for finding cleaner and greener supplements for fossil fuels. The uses of POME (Palm oil Mill Effluent) as feedstock of biogas production has attracted many industries to produce energy because this source (waste) is abundance and not fully utilised. Methane from biogas production has shown to have a significant potential to replace the depleting sources as it can be produced from renewable feed stocks. The main objective of this study is to produce hydrogen from methane obtained by digesting of POME and to transform bio-methane into hyd

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Mrakin, Anton N., Olga V. Afanaseva, and Oleg Yu Kuleshov. "CALCULATION OF HEAT TRANSFER INTENSITY OF GAS FUEL COMBUSTION PRODUCTS." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 334, no. 5 (2023): 109–15. http://dx.doi.org/10.18799/24131830/2023/5/3987.

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Link for citation: Mrakin A.N., Afanaseva O.V., Kuleshov O.Yu. Calculation of heat transfer intensity of gas fuel combustion products. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 5, рр.109-115. The relevance of the research is determined by the modern trend in the field of thermal power engineering and heat engineering for the transition from traditional gaseous fuel (methane) to the use of hydrogen, methane-hydrogen mixtures, as well as thermochemical conversion gases. Switching to new non-design fuel is justified by considerations of reducing the

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Kumar, Gopalakrishnan, and Chiu-Yue Lin. "Biogenic Hydrogen Conversion of De-Oiled Jatropha Waste via Anaerobic Sequencing Batch Reactor Operation: Process Performance, Microbial Insights, andCO2Reduction Efficiency." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/946503.

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We report the semicontinuous, direct (anaerobic sequencing batch reactor operation) hydrogen fermentation of de-oiled jatropha waste (DJW). The effect of hydraulic retention time (HRT) was studied and results show that the stable and peak hydrogen production rate of 1.48 L/L*d and hydrogen yield of 8.7 mL H2/g volatile solid added were attained when the reactor was operated at HRT 2 days (d) with a DJW concentration of 200 g/L, temperature 55°C, and pH 6.5. Reduced HRT enhanced the production performance until 1.75 d. Further reduction has lowered the process efficiency in terms of biogas prod

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