Development of novel heterogeneous catalysts for oxidative reactions: Preparation and performance of Co-Nx catalysts in partial oxidation of n-butane and toluene

M. L. Kaliya, S. B. Kogan, N. Froumin, M. Herskowitz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

CoNx on alumina catalyst yielded high performance in the oxidative dehydrogenation of n-butane, 47.6 mol% yield of olefins at 82% butane conversion was reached at 600°C. Most of olefins were ethylene and propylene formed via route of oxidative cracking of n-butane. Catalyst was prepared by deposition of sodium salt of octa (4,5-carboxy) cobalt phthalocyanine (NaCoPc) followed by calcination in He at 700°C. Decomposition of NaCoPc in inert medium results in formation of Co-Nx structure that was stable in oxidative processes. Comparison of performances on the novel catalyst Co-O/Al2O3 and traditional metal oxides catalysts shows that the novel catalytic system is significantly more active in production of light olefins particularly at low temperatures (400-450°C). XRD and XPS studies of the novel system indicate an essential modification of the active component by nitrogen.

Original languageEnglish
Pages (from-to)679-686
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume143
StatePublished - 1 Dec 2002

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