Oxidative dehydrogenation (ODH) of ethane with O2 as oxidant on selected transition metal-loaded zeolites

Xufeng Lin, Cathleen A. Hoel, Wolfgang M.H. Sachtler, Kenneth R. Poeppelmeier*, Eric Weitz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Ni-, Cu-, and Fe-loaded acidic and basic Y zeolites were synthesized, and their catalytic properties for oxidative dehydrogenation of ethane (ODHE) to ethylene were characterized. Acidic Ni-loaded Y zeolite exhibits an ethylene productivity of up to 1.08 gC2 H4 gcat- 1 h- 1 with a selectivity of ∼75%. Acidic Cu- and Fe-loaded Y zeolites have an ethylene productivity of up to 0.37 gC2 H4 gcat- 1 h- 1 and a selectivity of ∼50%. For the same metal, the acidity of the zeolite favors both ODHE productivity and ethylene selectivity. Extended X-ray absorption fine structure (EXAFS) studies show that Ni, present in particles on Ni/HY during the ODHE catalytic process, contains both Ni-Ni and Ni-O bonds, and that the ratio of oxidized Ni versus metallic Ni increases with the temperature. The insights these studies provide into the ODHE reaction mechanism are discussed.

Original languageEnglish (US)
Pages (from-to)54-62
Number of pages9
JournalJournal of Catalysis
Volume265
Issue number1
DOIs
StatePublished - Jul 1 2009

Keywords

  • Ethane
  • Ethylene productivity and selectivity
  • Oxidative dehydrogenation
  • Transition metal Y Zeolite

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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