Characterization of CuO/ZnO under oxidizing conditions for the oxidative methanol reforming reaction

T. L. Reitz, S. Ahmed, M. Krumpelt, R. Kumar, Harold H Kung

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

Catalytic generation of hydrogen by the reaction of methanol with oxygen in the presence of steam over an industrial copper-zinc oxide catalyst was studied. Under differential oxygen conversion conditions, the catalyst remained in an oxidized state, and the main reaction was oxidation of methanol to carbon dioxide and water. The activity was proportional to the copper oxide surface area. The methanol consumption rate had a small positive order in methanol and oxygen (0.18th order) and was suppressed by water. The catalyst deactivated with time on stream due to agglomeration of copper oxide. As the reactor temperature increased, the rate of methanol oxidation increased, the oxygen conversion became very high, and the catalyst away from the reactor entrance became reduced. Then, a significant rate of hydrogen production was observed. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)275-285
Number of pages11
JournalJournal of Molecular Catalysis A: Chemical
Volume162
Issue number1-2
DOIs
Publication statusPublished - Nov 20 2000

Fingerprint

Reforming reactions
Methanol
methyl alcohol
Copper oxides
copper oxides
Oxygen
catalysts
Catalysts
oxygen
reactors
Zinc Oxide
Oxidation
oxidation
Water
Steam
hydrogen production
Hydrogen production
agglomeration
Zinc oxide
Carbon Dioxide

Keywords

  • CuO/ZnO
  • Oxidative methanol reforming reaction
  • Oxidizing condition

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Characterization of CuO/ZnO under oxidizing conditions for the oxidative methanol reforming reaction. / Reitz, T. L.; Ahmed, S.; Krumpelt, M.; Kumar, R.; Kung, Harold H.

In: Journal of Molecular Catalysis A: Chemical, Vol. 162, No. 1-2, 20.11.2000, p. 275-285.

Research output: Contribution to journalArticle

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AB - Catalytic generation of hydrogen by the reaction of methanol with oxygen in the presence of steam over an industrial copper-zinc oxide catalyst was studied. Under differential oxygen conversion conditions, the catalyst remained in an oxidized state, and the main reaction was oxidation of methanol to carbon dioxide and water. The activity was proportional to the copper oxide surface area. The methanol consumption rate had a small positive order in methanol and oxygen (0.18th order) and was suppressed by water. The catalyst deactivated with time on stream due to agglomeration of copper oxide. As the reactor temperature increased, the rate of methanol oxidation increased, the oxygen conversion became very high, and the catalyst away from the reactor entrance became reduced. Then, a significant rate of hydrogen production was observed. (C) 2000 Elsevier Science B.V.

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