Synthesis of C4 olefins from n-butane over a novel VOx/SnO2-ZrO2 catalyst using CO2 as soft oxidant

被引：50

作者：

Raju, Gangadhara ^{[1
,2
]}

Reddy, Benjaram M. ^{[2
]}

Abhishek, Burri ^{[1
]}

Mo, Yong-Hwan ^{[1
]}

Park, Sang-Eon ^{[1
]}

机构：

[1] Inha Univ, Lab Nanogreen Catalysis, Dept Chem, Inchon 402751, South Korea

[2] Indian Inst Chem Technol, Inorgan & Phys Chem Div, Hyderabad 500607, Andhra Pradesh, India

来源：

APPLIED CATALYSIS A-GENERAL | 2012年 / 423卷

关键词：

n-Butane; 1,3-Butadiene; Soft oxidant; CO2; VOx/SnO2-ZrO2; OXIDATIVE DEHYDROGENATION; CARBON-DIOXIDE; SUPPORTED CATALYSTS; SURFACE-STRUCTURES; ETHYLBENZENE; STYRENE; PERFORMANCE; REACTIVITY; ALKANES; BULK;

D O I：

10.1016/j.apcata.2012.02.040

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Oxidative dehydrogenation (ODH) of n-butane was investigated over ZrO2, SnO2 and SnO2-ZrO2 mixed oxide supported vanadium oxide catalysts with the aim of utilizing CO2 as the soft oxidant, and to study the effect of mixed oxide support on the ODH activity and C4 olefins selectivity. The acid-base properties, reducibility, surface area and morphology of the SnO2-ZrO2 mixed oxide and its individual component oxide supported vanadium oxide samples were thoroughly studied. The mixed oxide supported vanadia sample exhibited superior acid-base bifunctionality: in particular, more numbers of medium strength acid-base sites were observed. The reduction temperature of the vanadia was observed to decrease in the case of mixed oxide supported vanadia catalysts. The mixed oxide supported vanadia sample exhibited a high conversion and product selectivity than its individual component oxide supported vanadia samples. A significant difference in the catalyst activity was noted in the presence and absence (He) of CO2 feed gas. Among various catalysts evaluated. the VOx/SnO2-ZrO2 catalyst exhibited excellent performance (22.34 and 36.63% conversion of n-butane and selectivity of C4 olefins, respectively), which is attributed to a high specific surface area, superior acid-base bifunctionality and easily reducibility of the dispersed vanadium oxide. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：168 / 175

页数：8

共 40 条

[1] CO2 activation and promotional effect in the oxidation of cyclic olefins over mesoporous carbon nitrides [J].

Ansari, Mohd Bismillah ;

Min, Byung-Hoon ;

Mo, Yong-Hwan ;

Park, Sang-Eon .

GREEN CHEMISTRY, 2011, 13 (06) :1416-1421

[2] Nonaqueous synthesis of uniform indium tin oxide nanocrystals and their electrical conductivity in dependence of the tin oxide concentration [J].

Ba, Jianhua ;

Fattakhova-Rohlfing, Dina ;

Feldhoff, Armin ;

Brezesinski, Torsten ;

Djerdj, Igor ;

Wark, Michael ;

Niederberger, Markus .

CHEMISTRY OF MATERIALS, 2006, 18 (12) :2848-2854

[3]

Berteau P., 1989, CATAL TODAY, V5, P121, DOI DOI 10.1016/0920-5861(89)80020-3

[4] OXIDATIVE DEHYDROGENATION OF NORMAL-BUTANE TO BUTADIENE - EFFECT OF DIFFERENT PROMOTERS ON THE PERFORMANCE OF VANADIUM MAGNESIUM-OXIDE CATALYSTS [J].

BHATTACHARYYA, D ;

BEJ, SK ;

RAO, MS .

APPLIED CATALYSIS A-GENERAL, 1992, 87 (01) :29-43

[5] Influence of the acid-base character of supported vanadium catalysts on their catalytic properties for the oxidative dehydrogenation of n-butane [J].

Blasco, T ;

Nieto, JML ;

Dejoz, A ;

Vazquez, MI .

JOURNAL OF CATALYSIS, 1995, 157 (02) :271-282

[6] NATURE OF VANADIUM SPECIES IN SNO2-V2O5-BASED CATALYSTS - CHEMISTRY OF PREPARATION, CHARACTERIZATION, THERMAL-STABILITY AND REACTIVITY IN ETHANE OXIDATIVE DEHYDROGENATION OVER V-SN MIXED OXIDES [J].

BORDONI, S ;

CASTELLANI, F ;

CAVANI, F ;

TRIFIRO, F ;

GAZZANO, M .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (19) :2981-3000

[7] Oxidative dehydrogenation of ethylbenzene to styrene with CO2 over SnO2-ZrO2 mixed oxide nanocomposite catalysts [J].

Burri, David Raju ;

Choi, Kwang-Min ;

Han, Dae-Soo ;

Sujandi ;

Jiang, Nanzhe ;

Burri, Abhishek ;

Park, Sang-Eon .

CATALYSIS TODAY, 2008, 131 (1-4) :173-178

[8] Alternative processes for the production of styrene [J].

Cavani, F ;

Trifiro, F .

APPLIED CATALYSIS A-GENERAL, 1995, 133 (02) :219-239

[9] Utilization of carbon dioxide as soft oxidant in the dehydrogenation of ethylbenzene over supported vanadium-antimony oxide catalystst [J].

Chang, JS ;

Vislovskiy, VP ;

Park, MS ;

Hong, DY ;

Yoo, JS ;

Park, SE .

GREEN CHEMISTRY, 2003, 5 (05) :587-590

[10] Oxidative dehydrogenation of 4-vinylcyclohexene into styrene over ZrO2 catalyst promoted with Fe2O3 and CaO [J].

Choi, YS ;

Park, YK ;

Chang, JS ;

Park, SE ;

Cheetham, AK .

CATALYSIS LETTERS, 2000, 69 (1-2) :93-101

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