Hydrodesulfurization Activity of CoMo Catalysts Supported on Stabilized TiO2

2003 ◽  
Vol 17 (1) ◽  
pp. 81-86 ◽  
Author(s):  
P. Schacht ◽  
G. Hernández ◽  
L. Cedeño ◽  
J. H. Mendoza ◽  
S. Ramírez ◽  
...  
Keyword(s):  
Como Catalysts ◽  
Hydrodesulfurization Activity

The suppression of a basic nitrogen compound influence on hydrodesulfurization activity of dibenzothiophene in treated diesel over Al2O3 supported CoMo catalysts by ZrO2 as a secondary support

2015 ◽  
Vol 62 ◽  
pp. 89-94 ◽  
Author(s):  
Pawinee Sintarako ◽  
Piyasan Praserthdam ◽  
Vivan Thammongkol ◽  
Banpot Pokacharoenwatjana ◽  
Watchara Yuanglamyai ◽  
...  
Keyword(s):  
Nitrogen Compound ◽  
Basic Nitrogen ◽  
Como Catalysts ◽  
Secondary Support ◽  
Hydrodesulfurization Activity

scholarly journals Characterization and hydrodesulfurization activity of CoMo catalysts supported on boron-doped sol–gel alumina

2006 ◽  
Vol 315 ◽  
pp. 18-28 ◽  
Author(s):  
Franck Dumeignil ◽  
Koichi Sato ◽  
Motoyasu Imamura ◽  
Nobuyuki Matsubayashi ◽  
Edmond Payen ◽  
...  
Keyword(s):  
Sol Gel ◽  
Boron Doped ◽  
Como Catalysts ◽  
Hydrodesulfurization Activity

scholarly journals Characterization and hydrodesulfurization activity of CoMo catalysts supported on sol–gel prepared Al2O3

2005 ◽  
Vol 287 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Franck Dumeignil ◽  
Koichi Sato ◽  
Motoyasu Imamura ◽  
Nobuyuki Matsubayashi ◽  
Edmond Payen ◽  
...  
Keyword(s):  
Sol Gel ◽  
Como Catalysts ◽  
Hydrodesulfurization Activity

Hydrodesulphurization of thiophene over zirconia and alumina supported Co-Mo catalysts

1989 ◽  
Vol 54 (8) ◽  
pp. 2064-2068 ◽  
Author(s):  
Jiří Sedláček ◽  
Zdeněk Vít
Keyword(s):  
Total Pressure ◽  
Supported Catalysts ◽  
Atomic Concentration ◽  
Commercial Sample ◽  
Sulphur Oxidation ◽  
Como Catalysts ◽  
Zirconia Support ◽  
Como Catalyst ◽  
Concentration Ratios

The zirconia supported CoMo catalysts and the commercial sample CoMo/Al2O3 were characterized by XPS measurements and by testing of activity in the HDS of thiophene at 280 °C and 1 MPa of total pressure. The XPS measurements revealed the better reducibility of molybdenum, higher sulphidability of cobalt and the absence of surface sulphur oxidation in the presence of zirconia support. The surface atomic concentration ratios S/Mo were 1.2 and 2.2 for zirconia and alumina supported catalysts, respectively. The activity of the zirconia supported CoMo catalyst normalized to the overal amounts of active metals was lower than that of the commercial CoMo/Al2O3 catalyst.

The Effect of γ-Al2O3, TiO2 and ZrO2 Supports on Hydrodesulfurization Activity of Transition-Metal Sulfides

2008 ◽  
Vol 73 (8-9) ◽  
pp. 945-955 ◽  
Author(s):  
Luděk Kaluža ◽  
Miroslav Zdražil
Keyword(s):  
Transition Metal ◽  
Aqueous Solutions ◽  
Model Reaction ◽  
Metal Sulfides ◽  
Vacuum Impregnation ◽  
Transition Metal Sulfides ◽  
Highly Active ◽  
System A ◽  
Benzothiophene Hydrodesulfurization ◽  
Hydrodesulfurization Activity

The transition metals V, Cr, Mn, Fe, Co, Ni, Mo, Ru, Rh, Pd, W, Re, Os, Ir and Pt were deposited from aqueous solutions of their salts onto conventional γ-Al2O3 and unconventional TiO2 and ZrO2 supports by vacuum impregnation and characterized in their sulfided form by a model reaction of benzothiophene hydrodesulfurization. It was found that the TiO2 and ZrO2 supports influenced predominantly positively the resulting activity of relatively low-active metals (V, Cr, Mn, Fe, Co, Ni, Mo, Ru, W and Os), whereas the highly active metals (Rh, Pd, Ir, Pt and Re) were influenced slightly negatively or not at all by those supports compared with the γ-Al2O3-supported system. A significant effect of the supports on the hydrodesulfurization-activity ranking of the transition-metal sulfides studied was ascertained.

Hydrodesulfurization activity of NiMo/TiO2Al2O3 catalysts

1998 ◽  
Vol 167 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Z.B. Wei ◽  
Weihong Yan ◽  
Hui Zhang ◽  
Tieli Ren ◽  
Qin Xin ◽  
...  
Keyword(s):  
Hydrodesulfurization Activity

Hydrodesulfurization activity of CoMo and NiMo supported on Al2O3–TiO2 for some model compounds and gas oils

1998 ◽  
Vol 18 (3-4) ◽  
pp. 325-330 ◽  
Author(s):  
Emmanuel Lecrenay ◽  
Kinya Sakanishi ◽  
Tomoshige Nagamatsu ◽  
Isao Mochida ◽  
Teruo Suzuka
Keyword(s):  
Model Compounds ◽  
Hydrodesulfurization Activity
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