A surfactant-assisted hydrothermal deposition method for preparing highly dispersed N/γ-Al2O3 hydrodenitrogenation catalyst

被引:30
作者
Fan, Yu
Bao, Xiaojun [1 ]
Wang, Hao
Chen, Chunfang
Shi, Gang
机构
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
[2] China Univ Petr, CNPC, Key Lab Petr Co, Beijing 102249, Peoples R China
基金
中国国家自然科学基金;
关键词
surfactant-assisted hydrothermal deposition method; high dispersion; weak metal-support interaction; hydrodenitrogenation;
D O I
10.1016/j.jcat.2006.11.003
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
Two W/gamma-Al2O3 catalysts were prepared by a surfactant-assisted hydrothermal deposition method developed in the present investigation and the conventional impregnation method, respectively, and characterized by means of XRD, XPS, TEM, N-2 adsorptipn, NH3-TPD and H-2-TPR. The results showed that compared with the catalyst prepared by impregnation, the catalyst prepared by the surfactant (cetyltrimethylammonium bromide, CTABr)-assisted hydrothermal deposition had higher dispersion of tungsten. species with weak metal-support interaction, more open pore channels, and more acid sites, and thus presented a significantly enhanced hydrodenitrogenation activity. The novel method introduced here sheds a light on preparing supported metal catalysts with high activity. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:477 / 481
页数:5
相关论文
共 20 条
[1]   Surfactant-assisted synthesis of highly dispersed molybdenum sulfide [J].
Afanasiev, P ;
Xia, GF ;
Berhault, G ;
Jouguet, B ;
Lacroix, M .
CHEMISTRY OF MATERIALS, 1999, 11 (11) :3216-3219
[2]   A characterization study of the surface acidity of solid catalysts by temperature programmed methods [J].
Arena, F ;
Dario, R ;
Parmaliana, A .
APPLIED CATALYSIS A-GENERAL, 1998, 170 (01) :127-137
[3]   Effects of support surface chemistry in hydrodeoxygenation reactions over CoMo/activated carbon sulfided catalysts [J].
de la Puente, G ;
Gil, A ;
Pis, JJ ;
Grange, P .
LANGMUIR, 1999, 15 (18) :5800-5806
[4]   New generation of titanium dioxide support for hydrodesulfurization [J].
Dzwigaj, S ;
Louis, C ;
Breysse, A ;
Cattenot, M ;
Bellière, V ;
Geantet, C ;
Vrinat, M ;
Blanchard, P ;
Payen, E ;
Inoue, S ;
Kudo, H ;
Yoshimura, Y .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 41 (1-2) :181-191
[5]   Hydrodenitrogenation of petroleum [J].
Furimsky, E .
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2005, 47 (03) :297-489
[6]   CATALYTIC HYDRODESULFURIZATION [J].
GRANGE, P .
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1980, 21 (01) :135-181
[7]   High activity of highly loaded MoS2 hydrodesulfurization catalysts supported on organised mesoporous alumina [J].
Kaluza, L ;
Zdrazil, M ;
Zilková, N ;
Cejka, J .
CATALYSIS COMMUNICATIONS, 2002, 3 (04) :151-157
[8]   Photocatalytic performance of nanometer-sized FexOy/TiO2 particle synthesized by hydrothermal method [J].
Kang, M ;
Choung, SJ ;
Park, JY .
CATALYSIS TODAY, 2003, 87 (1-4) :87-97
[9]   Tungsten-oxo-species deposited on alumina .2. Characterization and catalytic activity of unpromoted W-(VI)/gamma-Al2O3 catalysts prepared by equilibrium deposition filtration (EDF) at various pH's and non-dry impregnation (NDI) [J].
Karakonstantis, L ;
Matralis, H ;
Kordulis, C ;
Lycourghiotis, A .
JOURNAL OF CATALYSIS, 1996, 162 (02) :306-319
[10]   The effect of Ni loading and the sulfidation temperature on the structure and catalytic activity of Ni-W hydrodesulfurization catalysts [J].
Kim, CH ;
Yoon, WL ;
Lee, IC ;
Woo, SI .
APPLIED CATALYSIS A-GENERAL, 1996, 144 (1-2) :159-175