Ion oxide conductor as a catalytic membrane for selective oxidation of hydrocarbons

Authors: Courson C.¹; Taouk B.¹; Bordes E.¹

Source: Catalysis Letters, Volume 66, Number 3, 2000 , pp. 129-138(10)

Publisher: Springer

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Abstract:

A catalytic membrane reactor using ion-oxide conductors as catalysts is experienced in selective oxidative dimerization of propene to C_{6}-dimers. Structural and textural properties, catalytic and non-catalytic reactivities of M-doped Bi_{2}O_{3 } (M = La, Ce, Eu, Er, V, Nb) are studied. TGA experiments show that dopants increase the rates of reduction and reoxidation of Bi_{2}O_{3}, but that the reoxidation of the catalysts is rate limiting. During catalysis, the best yields in 1,5-hexadiene and benzene are obtained with cerium-doped Bi_{2}O_{3}.

Keywords: doped bismuth oxide catalyst; membrane reactor; catalytic membrane; ion-oxide conductor; redox behavior; oxidative coupling of propene

Language: English

Document Type: Regular paper

Affiliations: 1: Département de Génie Chimique, Université de Technologie de Compiègne, BP 20529, 60205 Compiègne Cedex, France

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