Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production

Beside steam reforming, methane pyrolysis is an alternative method for hydrogen production. ‘Turquoise’ hydrogen with solid carbon is formed in the pyrolysis process, contrary to ‘grey’ or ‘blue’ hydrogen via steam methane reforming, where waste carbon dioxide is produced. Thermal pyrolysis is condu...

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Main Authors: Tamás I. Korányi, Miklós Németh, Andrea Beck, Anita Horváth
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/17/6342
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author Tamás I. Korányi
Miklós Németh
Andrea Beck
Anita Horváth
author_facet Tamás I. Korányi
Miklós Németh
Andrea Beck
Anita Horváth
author_sort Tamás I. Korányi
collection DOAJ
description Beside steam reforming, methane pyrolysis is an alternative method for hydrogen production. ‘Turquoise’ hydrogen with solid carbon is formed in the pyrolysis process, contrary to ‘grey’ or ‘blue’ hydrogen via steam methane reforming, where waste carbon dioxide is produced. Thermal pyrolysis is conducted at higher temperatures, but catalytic decomposition of methane (CDM) is a promising route for sustainable hydrogen production. CDM is generally carried out over four types of catalyst: nickel, carbon, noble metal and iron. The applied reactors can be fixed bed, fluidized bed, plasma bed or molten-metal reactors. Two main advantages of CDM are that (i) carbon-oxide free hydrogen, ideal for fuel cell applications, is formed and (ii) the by-product can be tailored into carbon with advanced morphology (e.g., nanofibers, nanotubes). The aim of this review is to reveal the very recent research advances of the last two years achieved in the field of this promising prospective technology.
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spelling doaj.art-3c29d4f7637a4ee8acb5bab7e351bd4f2023-11-23T13:04:32ZengMDPI AGEnergies1996-10732022-08-011517634210.3390/en15176342Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon ProductionTamás I. Korányi0Miklós Németh1Andrea Beck2Anita Horváth3Department of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, HungaryDepartment of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, HungaryDepartment of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, HungaryDepartment of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, HungaryBeside steam reforming, methane pyrolysis is an alternative method for hydrogen production. ‘Turquoise’ hydrogen with solid carbon is formed in the pyrolysis process, contrary to ‘grey’ or ‘blue’ hydrogen via steam methane reforming, where waste carbon dioxide is produced. Thermal pyrolysis is conducted at higher temperatures, but catalytic decomposition of methane (CDM) is a promising route for sustainable hydrogen production. CDM is generally carried out over four types of catalyst: nickel, carbon, noble metal and iron. The applied reactors can be fixed bed, fluidized bed, plasma bed or molten-metal reactors. Two main advantages of CDM are that (i) carbon-oxide free hydrogen, ideal for fuel cell applications, is formed and (ii) the by-product can be tailored into carbon with advanced morphology (e.g., nanofibers, nanotubes). The aim of this review is to reveal the very recent research advances of the last two years achieved in the field of this promising prospective technology.https://www.mdpi.com/1996-1073/15/17/6342methane pyrolysiscatalytic decomposition of methaneturquoise hydrogen
spellingShingle Tamás I. Korányi
Miklós Németh
Andrea Beck
Anita Horváth
Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production
Energies
methane pyrolysis
catalytic decomposition of methane
turquoise hydrogen
title Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production
title_full Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production
title_fullStr Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production
title_full_unstemmed Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production
title_short Recent Advances in Methane Pyrolysis: Turquoise Hydrogen with Solid Carbon Production
title_sort recent advances in methane pyrolysis turquoise hydrogen with solid carbon production
topic methane pyrolysis
catalytic decomposition of methane
turquoise hydrogen
url https://www.mdpi.com/1996-1073/15/17/6342
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AT miklosnemeth recentadvancesinmethanepyrolysisturquoisehydrogenwithsolidcarbonproduction
AT andreabeck recentadvancesinmethanepyrolysisturquoisehydrogenwithsolidcarbonproduction
AT anitahorvath recentadvancesinmethanepyrolysisturquoisehydrogenwithsolidcarbonproduction