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Titolo:
Catalytic property of vanadyl pyrophosphates for selective oxidation of n-butane at high n-butane concentrations
Autore:
Kamiya, Y; Nishikawa, E; Okuhara, T; Hattori, T;
Indirizzi:
Tonen Chem Corp, Petrochem Res Lab, Ohi, Saitama 3568505, Japan Tonen ChemCorp Ohi Saitama Japan 3568505 ab, Ohi, Saitama 3568505, Japan Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600810, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600810 oro, Hokkaido 0600810, Japan Nagoya Univ, Grad Sch Engn, Dept Appl Chem, Chikusa Ku, Nagoya, Aichi 4648603, Japan Nagoya Univ Nagoya Aichi Japan 4648603 a Ku, Nagoya, Aichi 4648603, Japan
Titolo Testata:
APPLIED CATALYSIS A-GENERAL
fascicolo: 1, volume: 206, anno: 2001,
pagine: 103 - 112
SICI:
0926-860X(20010115)206:1<103:CPOVPF>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOSPHORUS OXIDE CATALYSTS; MALEIC-ANHYDRIDE; SURFACE; (VO)(2)P2O7;
Keywords:
vanadyl pyrophosphate; selective oxidation of n-butane; maleic anhydride; redox property; high n-butane concentration;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Kamiya, Y Tonen Chem Corp, Petrochem Res Lab, 1-3-1 Nishi Tsurugaoka, Ohi,Saitama 3568505, Japan Tonen Chem Corp 1-3-1 Nishi Tsurugaoka Ohi Saitama Japan 3568505
Citazione:
Y. Kamiya et al., "Catalytic property of vanadyl pyrophosphates for selective oxidation of n-butane at high n-butane concentrations", APP CATAL A, 206(1), 2001, pp. 103-112

Abstract

Selective oxidation of n-butane to maleic anhydride was studied at high concentrations of n-butane up to 5.0 vol.% using three kinds of (VO)(2)P2O7 catalysts having differently shaped microcrystallites; rose-petals (catalystA), plates (catalyst B), and blocks (catalyst C). The catalytic activity for maleic anhydride formation per unit surface area greatly depended on thekinds of catalysts at the high concentration of n-butane (5.0 vol.%); catalyst A was much more active, while there was no difference at the low concentrations. That catalyst A gave higher rates of the re-oxidation and reduction, which was established from the measurements of reduction of the catalyst, aged in the reaction mixture, with n-butane and subsequently re-oxidation with O-2. In addition, catalyst A showed a larger reaction order of n-butane concentration. Therefore, the higher catalytic performance of catalystA at the high concentration of n-butane is attributed to the higher redox ability of the catalyst, and this is probably brought about from the structural disorder of the surface. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 20:45:58