High-performance Cr/H-ZSM-5 catalysts for oxidative dehydrogenation of ethane to ethylene with CO2 as an oxidant

Naoki Mimura, Isao Takahara, Megumu Inaba, Masaki Okamoto, Kazuhisa Murata

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

Cr/H-ZSM-5 (SiO2/Al2O3≧190) catalyst effectively dehydrogenated ethane to ethylene in the presence of CO2 oxidant. The maximum rate of formation of ethylene at 923 K was 0.516mmolg-catalyst-1min-1 and selectivity was over 90%. Carbon dioxide maintained the activity of the catalyst by removing coke from the surface of the catalyst. TPR profiles of the Cr/H-ZSM-5 catalysts suggest that there are high oxidation states Cr species such as Cr(VI) on the catalyst, which is considered key of higher activity.

Original languageEnglish
Pages (from-to)257-262
Number of pages6
JournalCatalysis Communications
Volume3
Issue number6
DOIs
Publication statusPublished - 2002 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

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