Deactivation behavior of CrOy/Al2O3-ZrO2 catalysts in the dehydrogenation of propane to propylene by lattice oxygen

被引：11

作者：

Kim, Tae Hyeop ^{[1
]}

Gim, Min Yeong ^{[1
]}

Song, Ji Hwan ^{[1
]}

Choi, Won Choon ^{[2
]}

Park, Yong-Ki ^{[2
]}

Hong, Ung Gi ^{[3
]}

Park, Deuk Soo ^{[3
]}

Song, In Kyu ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem & Biol Engn, Inst Chem Proc, Seoul 151744, South Korea

[2] Korea Res Inst Chem Technol, Green Chem & Catalysis Res Ctr, Daejeon 305600, South Korea

[3] SK Gas R&D Ctr, ECO Hub, Seongnam Si 463400, Gyeonggi Do, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 97卷

关键词：

Propane; Oxidative dehydrogenation; alpha-Chromia-alumina; Deactivation; Chromia catalyst; PARAFFINS; OLEFINS;

D O I：

10.1016/j.catcom.2017.04.016

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：

A series of thermally deactivated CrOy/Al2O3-ZrO2 catalysts with different Zr/Al molar ratio (denoted as Cr/AZX, X = Zr/Al molar ratio) were prepared for use in the dehydrogenation of propane to propylene by lattice oxygen of the catalysts. It was found that alpha-chromia-alumina phase was formed as a result of catalyst deactivation. The relative distribution of chromium species was different depending on Zr/Al molar ratio of the catalysts. Among the catalysts, Cr/AZ-0.07 catalyst with the lowest amount of a-chromia-alumina and the largest amount of active chromium species (Cr3+) showed the best catalytic activity in the dehydrogenation of propane to propylene.

引用

页码：37 / 41

页数：5

共 50 条

[41] MICROSTRUCTURE OF AL2O3-ZRO2 DISPERSION CERAMICS
SPRINGER, C
RUHLE, M
CLAUSSEN, N
MIKROSKOPIE, 1978, 34 (5-6) : 136 - 136
[42] Heat treatment of nanocrystalline Al2O3-ZrO2
Smyser, BM
Connelly, JF
Sisson, RD
Provenzano, V
NANOPHASE AND NANOCOMPOSITE MATERIALS II, 1997, 457 : 335 - 340
[43] GRINDABILITY OF AL2O3-ZRO2 COMPOSITE CERAMICS
KONDO, Y
TSUKUDA, A
OKADA, S
NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 1989, 97 (09): : 929 - 934
[44] TOUGHENING EFFECTS IN AL2O3-ZRO2 SYSTEM
TOMASZEWSKI, H
CERAMICS INTERNATIONAL, 1988, 14 (02) : 117 - 125
[45] Phase diagram of the system:: Al2O3-ZrO2
Jerebtsov, DA
Mikhailov, GG
Sverdina, SV
CERAMICS INTERNATIONAL, 2000, 26 (08) : 821 - 823
[46] Dynamic compaction of Al2O3-ZrO2 compositions
Tunaboylu, Bahadir
McKittrick, Joanna
Nellis, W.J.
Nutt, Steven R.
Journal of the American Ceramic Society, 1994, 77 (06): : 1605 - 1612
[47] CONTROL OF MICROSTRUCTURE IN AL2O3-ZRO2 SYSTEM
SHEPLER, RE
LOEHMAN, RE
WHITNEY, ED
AMERICAN CERAMIC SOCIETY BULLETIN, 1974, 53 (04): : 374 - 374
[48] BEND STRENGTH OF AL2O3-ZRO2 COMPOSITES
KLADNIG, W
GRITZNER, G
JOURNAL OF MATERIALS SCIENCE LETTERS, 1987, 6 (10) : 1235 - 1237
[49] Propane Oxidative Dehydrogenation Using Consecutive Feed Injections and Fluidizable VOx/γAl2O3 and VOx/ZrO2-γAl2O3 Catalysts
Rostom, Samira
de Lasa, Hugo I.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2017, 56 (45) : 13110 - 13125
[50] Dehydrogenation of ethylbenzene with CO2 over V2O5/Al2O3-ZrO2 catalyst
Zhang, Shujiao
Li, Xiaohong
Jing, Jieying
Fan, Hongxia
Wang, Qian
Li, Wenying
CATALYSIS COMMUNICATIONS, 2013, 34 : 5 - 10

← 1 2 3 4 5 →