Characterization of silica-supported molybdenum catalysts by ESR, XPS and thiophene hydrodesulfurization

1995 ◽  
Vol 54 (2) ◽  
pp. 313-321 ◽  
Author(s):  
Nina G. Kostova ◽  
Alla A. Spojakina
Keyword(s):  
Thiophene Hydrodesulfurization ◽  
Molybdenum Catalysts

Mechanisms of Thiophene Hydrodesulfurization on Model Molybdenum Catalysts

1998 ◽  
Vol 178 (1) ◽  
pp. 226-233 ◽  
Author(s):  
David L. Sullivan ◽  
John G. Ekerdt
Keyword(s):  
Thiophene Hydrodesulfurization ◽  
Molybdenum Catalysts

Hydrodesulphurization activity and characterization of sulphided molybdenum and cobalt—molybdenum catalysts

1989 ◽  
Vol 52 (1) ◽  
pp. 211-224 ◽  
Author(s):  
Jorge Ramirez ◽  
Sergio Fuentes ◽  
Gabriela Díaz ◽  
Michel Vrinat ◽  
Michele Breysse ◽  
...  
Keyword(s):  
Molybdenum Catalysts

MAS NMR Strategies for the Characterization of Supported Molybdenum Catalysts

2007 ◽  
Vol 32 (4) ◽  
pp. 499-511 ◽  
Author(s):  
J.-B. d'Espinose de Lacaillerie ◽  
Z. Gan
Keyword(s):  
Mas Nmr ◽  
Molybdenum Catalysts

Activation of carbon-supported cobalt-molybdenum catalysts in thiophene hydrodesulfurization

1990 ◽  
Vol 63 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Tamás I. Korányi ◽  
Valerii Rozanov ◽  
Rita Kremó ◽  
Zoltán Paál
Keyword(s):  
Thiophene Hydrodesulfurization ◽  
Molybdenum Catalysts

Hydrodesulphurization activity and characterization of sulphided molybdenum and cobalt—molybdenum catalysts comparison of alumina-, silica—alumina- and titania-supported catalysts

1989 ◽  
Vol 52 (3) ◽  
pp. 211-223 ◽  
Author(s):  
Jorge Ramirez ◽  
Sergio Fuentes ◽  
Gabriela Díaz ◽  
Michel Vrinat ◽  
Michele Breysse ◽  
...  
Keyword(s):  
Supported Catalysts ◽  
Silica Alumina ◽  
Molybdenum Catalysts

scholarly journals Karakterisasi dan Aplikasi Katalis Nikel-Molibdenum Teremban pada Zeolit Alam Aktif untuk Hidrorengkah Tir Batubara

2015 ◽  
Vol 16 (1) ◽  
pp. 10
Author(s):  
Dwi Julian Sugianto ◽  
Karna Wijaya ◽  
Iqmal Tahir
Keyword(s):  
Natural Zeolite ◽  
Coal Tar ◽  
Liquid Product ◽  
Total Pore Volume ◽  
Optimum Temperature ◽  
Total Conversion ◽  
Wet Impregnation ◽  
Liquid Products ◽  
Molybdenum Catalysts

Preparation and characterization of nickel-molybdenum catalysts supported on activated natural zeolite over hydrorackingof coal tar have been done. Modification of catalyst was included activation of zeolite by HCl 6N, wet impregnation of Ni-Mo metal and leaching the Ni-Mo from zeolite surfaces with EDTA solution.The parameters of catalyst have been determinedi.e acid site number, the ratio of Si/Al, crystallinity, content of Ni-Mo metal, specific surface area, total pore volume, and poreaverage diameter. The hydrocracking of coal tar was carried out at the optimum temperature (450°C) by flowing H2 gas (flowrate of 20 mL/min) on the coal tar with ratio of feed:catalyst was 10:1. The resulting liquid product was analyzed by GC/GCMS.The result showed that catalytic hydrocracking with ZAA catalyst had the highest conversion of liquid products,which were 40.51% (w/w) compared to Ni-Mo/ZAA catalyst gave 28.61% and Ni-Mo/ZAA(E) gaves 28.06% (w/w). Thehighest light fractions (67.63% (w/w)) produced by using Ni-Mo/ZAA catalyst and the highest medium fractions wereproduced over ZAA catalyst which was 36.61% (w/w) and the highest total conversion on the product with Ni-Mo/ZAA(E)catalyst produced was 50.05% (w/w). The product analyzed with GC-MS result on the 9th highest peak showed that thehydrocracking products resulted over Ni-Mo/ZAA mostly were phenol and its derivatives.

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