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A Comparative Study of Hydroxyapatite‐ and Alumina‐Based Catalysts in Dry Reforming of Methane
Author(s) -
Rego de Vasconcelos Bruna,
Pham Minh Doan,
Martins Emmanuel,
Germeau Alain,
Sharrock Patrick,
Nzihou Ange
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201900461
Subject(s) - catalysis , calcination , carbon dioxide reforming , methane , sintering , chemical engineering , metal , nickel , particle size , materials science , chemistry , methane reformer , inorganic chemistry , syngas , metallurgy , steam reforming , hydrogen production , organic chemistry , engineering
The dry reforming of methane over hydroxyapatite‐ and alumina/magnesia (commercial Pural MG 30)‐supported nickel catalysts was investigated. The catalytic performance of the catalysts prepared with fresh supports highly depended on the basicity, the metal‐support interaction, and the metal particle size. Calcination of the supports at 1200 °C for 5 h made the catalysts less active because of specific surface area reduction and basicity destruction. However, this treatment allowed avoiding any further catalyst deactivation by thermal sintering and maintained excellent catalytic stability over 300 h of time‐on‐stream. These tests under simulated industrial conditions (high contact time and long time‐on‐stream) showed the competitiveness of the prepared catalysts in this important catalytic process.