Effect of preparation method on structural characteristics and propane steam reforming performance of Ni-Al2O3 catalysts

被引：117

作者：

Zhang, Lingzhi ^{[1
]}

Wang, Xueqin ^{[1
]}

Tan, Bing ^{[1
]}

Ozkan, Umit S. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2009年 / 297卷 / 01期

基金：

美国国家科学基金会;

关键词：

Nickel catalyst; Sol-gel preparation; Metal-support interaction; Steam reforming; Deactivation; Sintering; Coking; Carbon filament; SMALL MOO3 ADDITIONS; CARBON-DIOXIDE; NICKEL-CATALYSTS; NI-MO/AL2O3; CATALYSTS; SOLID-SOLUTION; N-BUTANE; METHANE; CO2; ALUMINA; CH4;

D O I：

10.1016/j.molcata.2008.09.011

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：

Propane steam reforming was studied over Ni-Al2O3 catalysts that were prepared by a conventional impregnation (IM) method and a one-step sol-gel (SG) technique. Both Ni-Al2O3 catalysts showed similar initial activity. However, IM-Ni-Al2O3 deactivated severely with time-on-stream of propane steam reforming. The catalyst prepared using a SG technique demonstrated stable catalytic performance. The two catalysts also showed major differences in product distribution, with SG catalyst giving much higher yields of hydrogen. Catalysts were characterized with temperature-programmed reduction (TPR), Xray photoelectron spectroscopy (XPS), temperature-programmed oxidation (TPO). transmission electron microscopy (TEM), X-ray diffraction (XRD) and Raman spectroscopy. It was revealed that, with sol-gel preparation, highly dispersed small Ni crystallites are formed with a strong interaction with the support. This is shown to be important for coke suppression and catalyst stability. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：26 / 34

页数：9

共 49 条

[1] NUCLEATION AND GROWTH OF CARBON DEPOSITS FROM NICKEL CATALYZED DECOMPOSITION OF ACETYLENE [J].

BAKER, RTK ;

BARBER, MA ;

WAITE, RJ ;

HARRIS, PS ;

FEATES, FS .

JOURNAL OF CATALYSIS, 1972, 26 (01) :51-&

[2] INFLUENCE OF MOLYBDENUM AND TUNGSTEN ADDITIVES ON THE PROPERTIES OF NICKEL STEAM REFORMING CATALYSTS [J].

BOROWIECKI, T ;

GOLEBIOWSKI, A .

CATALYSIS LETTERS, 1994, 25 (3-4) :309-313

[3] Effects of small MoO3 additions on the properties of nickel catalysts for the steam reforming of hydrocarbons II.: Ni-Mo/Al2O3 catalysts in reforming, hydrogenolysis and cracking of n-butane [J].

Borowiecki, T ;

Giecko, G ;

Panczyk, M .

APPLIED CATALYSIS A-GENERAL, 2002, 230 (1-2) :85-97

[4]

Borowiecki T, 1999, STUD SURF SCI CATAL, V126, P435

[5] Effects of small MoO3 additions on the properties of nickel catalysts for the steam reforming of hydrocarbons [J].

Borowiecki, T ;

Golebiowski, A ;

Stasinska, B .

APPLIED CATALYSIS A-GENERAL, 1997, 153 (1-2) :141-156

[6] Catalytic reforming of methane with carbon dioxide over nickel catalysts .1. Catalyst characterization and activity [J].

Bradford, MCJ ;

Vannice, MA .

APPLIED CATALYSIS A-GENERAL, 1996, 142 (01) :73-96

[7] Catalytic performance and catalyst structure of nickel-magnesia catalysts for CO2 reforming of methane [J].

Chen, YG ;

Tomishige, K ;

Yokoyama, K ;

Fujimoto, K .

JOURNAL OF CATALYSIS, 1999, 184 (02) :479-490

[8] CONVERSION OF METHANE AND CARBON-DIOXIDE INTO SYNTHESIS GAS OVER ALUMINA-SUPPORTED NICKEL-CATALYSTS - EFFECT OF NI-AL2O3 INTERACTIONS [J].

CHEN, YG ;

REN, J .

CATALYSIS LETTERS, 1994, 29 (1-2) :39-48

[9] Energy efficient conversion of methane to syngas over NiO-MgO solid solution [J].

Choudhary, VR ;

Mamman, AS .

APPLIED ENERGY, 2000, 66 (02) :161-175

[10] Kinetic studies of methane steam reforming on ceria-supported Pd [J].

Craciun, R ;

Shereck, B ;

Gorte, RJ .

CATALYSIS LETTERS, 1998, 51 (3-4) :149-153

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