CO2-free hydrogen production via microwave-driven methane pyrolysis

Dadsetan, Mehran; Khan, Mohammad Fawaz; Salakhi, Mehdi; Bobicki, Erin R.; Thomson, Murray J.

doi:10.1016/j.ijhydene.2022.12.353

Cited by 41 publications

(4 citation statements)

References 56 publications

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“…19,32 It is observed that when the gas flow rate exceeds the minimum fluidisation velocity, bubbles can form and grow with increasing ratio. 33 The observed fluidisation looks very similar to that which is visible in the video made by Dadsetan et al, 26 who, however, used activated carbon as catalysts.…”

Section: Catalytic Resultssupporting

confidence: 76%

“…The objective of this work was to investigate the direct catalytic cracking of biogas in a fluidised-bed reactor 19–24 to achieve high CH 4 conversion and H 2 yield with carbon storage in a solid form. 25,26 We show that at temperatures above 900 °C, the fluidised bed reactor produces carbon materials, whereas at lower temperatures, the carbon is gasified to CO by the Boudouard reaction. Whereas nickel-based catalysts are the most active catalysts for low-temperature pyrolysis and enable the production of higher-value carbon nanotubes (CNTs), 19,27,28 iron-based catalysts are more appropriate for high reaction temperatures.…”

Section: Introductionmentioning

confidence: 91%

See 1 more Smart Citation

Direct biogas reforming to turquoise H₂ and carbon material in a catalytic fluidised-bed reactor

L’hospital,

de Araujo,

Schuurman

et al. 2024

New J. Chem.

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Section: Catalytic Resultssupporting

confidence: 76%

Section: Introductionmentioning

confidence: 91%

Direct biogas reforming to turquoise H₂ and carbon material in a catalytic fluidised-bed reactor

L’hospital,

de Araujo,

Schuurman

et al. 2024

New J. Chem.

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“…Microwave heating of carbon particles has also been described for methane pyrolysis [95], leading to semi-graphitic pyrolytic carbon products that could be used as anode material in Na-ion batteries [96]. Interestingly, Hamzehlouia and Chaouki [97] described a method for the coating of particles in a microwave-heated fluidized bed, opening the door for the use of any type of catalyst for the microwave-assisted methane pyrolysis.…”

Section: Fluidization Gasmentioning

confidence: 99%

Combined Methane Pyrolysis and Solid Carbon Gasification for Electrified CO2-Free Hydrogen and Syngas Production

Perreault,

Boruntea,

Dhawan Yadav

et al. 2023

Energies

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The coupling of methane pyrolysis with the gasification of a solid carbon byproduct provides CO2-free hydrogen and hydrogen-rich syngas, eliminating the conundrum of carbon utilization. Firstly, the various types of carbon that are known to result during the pyrolysis process and their dependencies on the reaction conditions for catalytic and noncatalytic systems are summarized. The synchronization of the reactions’ kinetics is considered to be of paramount importance for efficient performance. This translates to the necessity of finding suitable reaction conditions, carbon reactivities, and catalysts that might enable control over competing reactions through the manipulation of the reaction rates. As a consequence, the reaction kinetics of methane pyrolysis is then emphasized, followed by the particularities of carbon deposition and the kinetics of carbon gasification. Given the urgency in finding suitable solutions for decarbonizing the energy sector and the limited information on the gasification of pyrolytic carbon, more research is needed and encouraged in this area. In order to provide CO2-free hydrogen production, the reaction heat should also be provided without CO2. Electrification is one of the solutions, provided that low-carbon sources are used to generate the electricity. Power-to-heat, i.e., where electricity is used for heating, represents the first step for the chemical industry.

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“…One of the promising methods of hydrogen and carbon black production with reduced CO 2 emissions is the thermal decomposition of methane (so called methane pyrolysis) [1], the reaction of which is:…”

Section: Introductionmentioning

confidence: 99%

Study of Soot Deposits during Continuous Methane Pyrolysis in a Corundum Tube

Galtsov-Tsientsiala,

Dudoladov,

Grigorenko

et al. 2023

Applied Sciences

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Methane pyrolysis is one of the promising methods for producing low-carbon hydrogen, while one of the main problems of methane pyrolysis technology is soot clogging of the reactor space. In this work, soot deposits were studied during continuous methane pyrolysis in a corundum tube with an inner diameter of 50 mm. Experiments were carried out at temperatures of 1000 °C, 1050 °C, 1100 °C, 1200 °C and 1400 °C with methane flow rates of 1 L/min and 5 L/min. Each experiment lasted 1 h. The formed soot accumulated inside the reactor (corundum tube) and the connected filter, where the gaseous product of methane pyrolysis was separated from the soot. The gaseous product was studied by gas chromatography. The soot was studied by SEM, BET and ICP-MS. With an increase in the temperature of the pyrolysis process from 1000 to 1200 °C, the hydrogen yield increased from 28.64 to 92.74% and from 1.10% to 72.09% at a methane flow rate of 1 and 5 L/min, respectively. The yield of soot increased from 1.28 g at 1000 °C to 43.9 g at 1400 °C (at a methane flow rate of 1 L/min). With an increase in the flow rate of methane from 1 to 5 l/min, the yield of soot at 1200 °C increased by almost two times to 75.65 g. It was established that in the region of the reactor where maximum heating occurs, the accumulated soot sinters and forms dense growths. At 1050 °C, the particle size of soot varies from 155 to 650 nm, at 1200 °C—from 157 to 896 nm, and at 1400 °C—from 77 to 532 nm. The specific surface of soot was 3.5 m2/g at 1000 °C and 8.0 m2/g at 1400 °C. The purity of the produced carbon black was about 99.95%. This study is useful in the selection of materials and technical solutions for a pilot plant for methane pyrolysis.

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CO2-free hydrogen production via microwave-driven methane pyrolysis

Cited by 41 publications

References 56 publications

Direct biogas reforming to turquoise H₂ and carbon material in a catalytic fluidised-bed reactor

Direct biogas reforming to turquoise H₂ and carbon material in a catalytic fluidised-bed reactor

Combined Methane Pyrolysis and Solid Carbon Gasification for Electrified CO2-Free Hydrogen and Syngas Production

Study of Soot Deposits during Continuous Methane Pyrolysis in a Corundum Tube

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CO2-free hydrogen production via microwave-driven methane pyrolysis

Cited by 41 publications

References 56 publications

Direct biogas reforming to turquoise H2 and carbon material in a catalytic fluidised-bed reactor

Direct biogas reforming to turquoise H2 and carbon material in a catalytic fluidised-bed reactor

Combined Methane Pyrolysis and Solid Carbon Gasification for Electrified CO2-Free Hydrogen and Syngas Production

Study of Soot Deposits during Continuous Methane Pyrolysis in a Corundum Tube

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Direct biogas reforming to turquoise H₂ and carbon material in a catalytic fluidised-bed reactor

Direct biogas reforming to turquoise H₂ and carbon material in a catalytic fluidised-bed reactor