Kim, MH Lee, EK Jun, JH Kong, SJ Han, GY Lee, BK Lee, TJ Yoon, KJ 2024-01-21T07:37:43Z 2024-01-21T07:37:43Z 2021-09-02 2004-02 0360-3199 https://pubs.kist.re.kr/handle/201004/137897 Several domestic activated carbons were tested as the catalyst for decomposition of methane. All the activated carbons showed similar deactivation pattern. Mass transport effect in the catalyst particles was observed and the pore mouth blocking appeared to occur noticeably especially in large particles. Between different kinds of the activated carbons, no discernible trend was observed between the initial activity and the surface area, and the initial activities lay in a relatively narrow range. The reaction orders were 0.5 and the same for different samples of the activated carbon. The activation energies were also about the same, ca. 200 kJ/mol, regardless of the kind and suppliers. These results indicate that the reaction mechanism is the same for all the activated carbons. Ashes in the activated carbons do little affect the catalytic activity. (C) 2003 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD FOSSIL-FUELS NATURAL-GAS CRACKING CO2 Hydrogen production by catalytic decomposition of methane over activated carbons: kinetic study Article 10.1016/S0360-3199(03)00111-3 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.29, no.2, pp.187 - 193 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 29 2 187 193 scie scopus 000187360000009 2-s2.0-0344464766 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article FOSSIL-FUELS NATURAL-GAS CRACKING CO2 activated carbon ash deactivation hydrogen kinetic parameters mass transport effect methane decomposition