Dehydrogenation of Isobutane to Isobutene with Carbon Dioxide over SBA-15-Supported Chromia-Ceria Catalysts

被引：17

作者：

Wei, Chunling ^{[1
,2
]}

Xue, Fangqi ^{[1
]}

Miao, Changxi ^{[2
]}

Yue, Yinghong ^{[1
]}

Yang, Weimin ^{[2
]}

Hua, Weiming ^{[1
]}

Gao, Zi ^{[1
]}

机构：

[1] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200433, Peoples R China

[2] Shanghai Res Inst Petrochem Technol SINOPEC, Shanghai 201208, Peoples R China

来源：

CHINESE JOURNAL OF CHEMISTRY | 2017年 / 35卷 / 10期

基金：

中国国家自然科学基金;

关键词：

isobutane dehydrogenation; carbon dioxide; chromia-ceria; SBA-15; supported catalyst; OXIDATIVE DEHYDROGENATION; SUPPORTED CATALYSTS; EFFICIENT CATALYST; ALUMINA CATALYSTS; SURFACE-CHEMISTRY; VANADIUM-OXIDE; LIGHT ALKANES; PROPANE; ETHANE; ETHYLBENZENE;

D O I：

10.1002/cjoc.201700120

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of SBA-15-supported chromia-ceria catalysts with 3% Cr and 1%-5% Ce (3Cr-Ce/SBA) were prepared using an incipient wetness impregnation method. The catalysts were characterized by XRD, N-2 adsorption, SEM, TEM-EDX, Raman spectroscopy, UV-vis spectroscopy, XPS and H-2-TPR, and their catalytic performance for isobutane dehydrogenation with CO2 was tested. The addition of ceria to SBA-15-supported chromia improves the dispersion of chromium species. 3Cr-Ce/SBA catalysts are more active than SBA-15-supported chromia (3Cr/SBA), which is due to a higher concentration of Cr6+ species present on the former catalysts. The 3Cr-3Ce/SBA catalyst shows the highest activity, which gives 35.4% isobutane conversion and 89.6% isobutene selectivity at 570 degrees C after 10min of the reaction.

引用

页码：1619 / 1626

页数：8

共 46 条

[1] Isobutane oxydehydrogenation on Al2O3-supported transition and rare-earth metal oxides [J].

Al-Zahrani, SM ;

Elbashir, NO ;

Abasaeed, AE ;

Abdulwahed, M .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2004, 218 (02) :179-186

[2]

[Anonymous], [No title captured]

[3] Preparation of Highly Dispersed Chromium Oxide Catalysts Supported on Mesoporous Silica for the Oxidative Dehydrogenation of Propane Using CO2: Insight into the Nature of Catalytically Active Chromium Sites [J].

Baek, Jayeon ;

Yun, Hyeong Jin ;

Yun, Danim ;

Choi, Youngbo ;

Yi, Jongheop .

ACS CATALYSIS, 2012, 2 (09) :1893-1903

[4] Oxidative dehydrogenation of isobutane over LaBaSm oxide catalyst -: Influence of the addition of CO2 in the feed [J].

Bi, YL ;

Zhen, KJ ;

Valenzuela, RX ;

Jia, MJ ;

Corberán, VC .

CATALYSIS TODAY, 2000, 61 (1-4) :369-375

[5] Activation of C2-C4 alkanes over acid and bifunctional zeolite catalysts [J].

Caeiro, G. ;

Carvalho, R. H. ;

Wang, X. ;

Lemos, M. A. N. D. A. ;

Lemos, F. ;

Guisnet, M. ;

Ribeiro, F. Ramoa .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 255 (1-2) :131-158

[6] Oxidative dehydrogenation of ethane and propane: How far from commercial implementation? [J].

Cavani, F. ;

Ballarini, N. ;

Cericola, A. .

CATALYSIS TODAY, 2007, 127 (1-4) :113-131

[7] Structure and properties of the alumina-supported vanadia catalysts for ethylbenzene dehydrogenation in the presence of carbon dioxide [J].

Chen, SW ;

Qin, ZF ;

Xu, XF ;

Wang, JG .

APPLIED CATALYSIS A-GENERAL, 2006, 302 (02) :185-192

[8] Oxidative dehydrogenation of propane over Cr2O3/Al2O3 and Cr2O3 catalysts:: effects of loading, precursor and surface area [J].

Cherian, M ;

Rao, MS ;

Yang, WT ;

Jehng, HM ;

Hirt, AM ;

Deo, G .

APPLIED CATALYSIS A-GENERAL, 2002, 233 (1-2) :21-33

[9]

de Morais Batista A. H., 2010, APPL CATAL A-GEN, V382, P148

[10] Catalytic dehydrogenation of isobutane in the presence of carbon dioxide over nickel supported on active carbon [J].

Ding, Jianfei ;

Qin, Zhangfeng ;

Li, Xuekuan ;

Wang, Guofu ;

Wang, Jianguo .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2010, 315 (02) :221-225

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