期刊
ENERGIES
卷 15, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/en15176342
关键词
methane pyrolysis; catalytic decomposition of methane; turquoise hydrogen
资金
- Hungarian-Egyptian bilateral project [NKM 2019-12]
Methane pyrolysis is an alternative method for hydrogen production, which can produce carbon-oxide free hydrogen and tailor the by-product into carbon with advanced morphology.
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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