Selective oxidation of isobutane on V-Mo-O mixed oxide catalysts

被引：4

作者：

Mitran, Gheorghita ^{[1
]}

Marcu, Ioan-Cezar ^{[1
]}

Yuzhakova, Tatiana ^{[2
]}

Sandulescu, Ioan ^{[1
]}

机构：

[1] Univ Bucharest, Dept Chem Technol & Catalysis, Bucharest 030018, Romania

[2] Pannon Univ, Dept Environm Engn & Chem Technol, Fac Engn, H-8201 Veszprem, Hungary

来源：

JOURNAL OF THE SERBIAN CHEMICAL SOCIETY | 2008年 / 73卷 / 01期

关键词：

vanadium molybdenum oxides; iso-butane oxidation; iso-butene;

D O I：

10.2298/JSC0801055M

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Four V-Mo-O mixed metal oxides were prepared, characterized and tested for the selective oxidation of isobutane in the temperature range 350-550 degrees C, at atmospheric pressure. Isobutane was mainly oxidized to iso-butene and carbon oxides. The systems with low vanadium contents showed low activities but high isobutene selectivities, while the systems with high vanadium contents showed high activities with high carbon oxides selectivities. The effects of temperature, contact time and the molar ratio iso-butane to oxygen on the conversion of isobutane and the selectivity of the oxidation were studied.

引用

页码：55 / 64

页数：10

共 26 条

[1] Structurally complex molybdenum oxide model catalysts for the selective oxidation of propene [J].

Abd Hamid, SB ;

Othman, D ;

Abdullah, N ;

Timpe, O ;

Knobl, S ;

Niemeyer, D ;

Wagner, J ;

Su, D ;

Schlögl, R .

TOPICS IN CATALYSIS, 2003, 24 (1-4) :87-95

[2] HETEROGENEOUS CATALYTIC-OXIDATION OF ACROLEIN TO ACRYLIC-ACID - MECHANISM AND CATALYSTS [J].

ANDRUSHKEVICH, TV .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1993, 35 (02) :213-259

[3] Improved catalytic performance of Keggin-type polyoxometalates in the oxidation of isobutane to methacrylic acid under hydrocarbon-lean conditions using antimony-doped catalysts [J].

Cavani, F ;

Mezzogori, R ;

Pigamo, A ;

Trifirò, F .

CHEMICAL ENGINEERING JOURNAL, 2001, 82 (1-3) :33-42

[4] Selective oxidation of isobutane over HxFe0.12Mo11VPAs0.3Oy heteropoly compound catalyst [J].

Deng, Q ;

Jiang, SL ;

Cai, TJ ;

Peng, ZS ;

Fang, ZJ .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 229 (1-2) :165-170

[5]

DUHAMEL LJ, 1996, CATAL TODAY, V32, P237

[6]

GORSHKOVA TP, 1984, KINET KATAL, V25, P201

[7] Oxidative dehydrogenation of isobutane on supported chromia catalysts [J].

Grabowski, R ;

Grzybowska, B ;

Sloczynski, J ;

Wcislo, K .

APPLIED CATALYSIS A-GENERAL, 1996, 144 (1-2) :335-341

[8] Oxidative dehydrogenation of isobutane to isobutylene over supported transition metal oxide catalysts [J].

Hoang, M ;

Mathews, JF ;

Pratt, KC .

REACTION KINETICS AND CATALYSIS LETTERS, 1997, 61 (01) :21-26

[9] Oxidative dehydrogenation of isobutane over V2O5-based catalysts prepared by grafting vanadyl alkoxides on TiO2-SiO2 supports [J].

Iannazzo, V ;

Neri, G ;

Galvagno, S ;

Di Serio, M ;

Tesser, R ;

Santacesaria, E .

APPLIED CATALYSIS A-GENERAL, 2003, 246 (01) :49-68

[10]

Jablonska H, 2000, MOLECUL PHYS REP, V29, P19

← 1 2 3 →