Characterization and catalytic activity of Ni-W/Si02-Al203 hydrocracking catalysts
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Sharma, L .D
Manoj, Kumar Gupta, J .K Rana, M.S Dangwal, V. S Dhar, G Murali |
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| Date |
2010-07-30T05:50:17Z
2010-07-30T05:50:17Z 2010-07-30T05:50:17Z |
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| Identifier |
Catalysis Today,Vol.141,Issue 1-2,15March,2009
http://hdl.handle.net/123456789/726 |
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| Description |
Characterization of Ni-W SiOrAI203 catalysts was carried out by microcalorimetry, TPR and oxygen chemisorption.
The effect of incorporation of individual metals and their sequence of addition to the support on the properties and catalytic
activity for cyclohexene hydrogenation and cumene cracking was investigated. While the addition of nickel to Si02-AI203
has little effect on the acidity, tungsten has generated some new strong acid sites, which do not seem to have beneficial effect
for cumene cracking. Low temperature TPR peak in the bimetallic catalysts falls around 760 K due to Ni-W species
while the high temperature peak around 1115-1223K corresponds to W species. W/SiOrAI203 has a lower oxygen chemisorption
than its nickel counteqJart but has a higher hydrogenation rate. Tungsten is the active metal for hydrogenation. W-Ni/SiO2-Al203
catalyst has better hydrogenation and cracking activity.
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| Language |
en_US
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| Subject |
Hydrocracking Catalysts
Ni-W/Si02-Al203 |
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| Title |
Characterization and catalytic activity of Ni-W/Si02-Al203 hydrocracking catalysts
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| Type |
Article
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