Abstract
Hydrogen spillover effect was studied using TPR. A novel method was developed to incorporate a very small amount of precious metal directly on the base metals supported catalyst to enhance the hydrogenation functionality. A significant reduction in the peak temperature was observed by incorporation of the precious metal. Ni-W supported on alumina reduced at ∼ 586°C. Similar catalyst with rhodium incorporated by a novel method, produced a large reduction peak at 380°C, indicating a hydrogen spillover effect. Cracking-functionality was modified by changing the acidity of a commercially available USY-zeolite. Acidity of the samples was measured by TPD of ammonia. Cumene cracking was also used to study the effect of acidity modification. A relationship was observed between cumene conversion and the acidity of the modified USY-zeolite samples.
| Original language | English |
|---|---|
| Pages | 1-2 |
| Number of pages | 2 |
| State | Published - 2002 |
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Fuel Technology
- Energy Engineering and Power Technology