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

Tamás I. Korányi (), Miklós Németh, Andrea Beck and Anita Horváth
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Tamás I. Korányi: Department of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, Hungary
Miklós Németh: Department of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, Hungary
Andrea Beck: Department of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, Hungary
Anita Horváth: Department of Surface Chemistry and Catalysis, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege M. u. 29-33, 1121 Budapest, Hungary

Energies, 2022, vol. 15, issue 17, 1-14

Abstract: 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.

Keywords: methane pyrolysis; catalytic decomposition of methane; turquoise hydrogen (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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