Abstract
The influence of acidity properties of zeolites on the alkylation of isobutane with 2-butene was studied using ultrastable Y (USY) zeolites. Most zeolites possessed almost comparable hydrogen transfer activity except for USY-30, which has the lowest acid site density. On the other hand, the strength of acid sites increased with degrees of dealumination. During the alkylation, a maximum in catalytic activity for certain Si/Al ratios were observed. This behavior is believed to be a result of a balanced level of acidic properties between the concentration and strength of Brønsted acid sites. It can prohibit the formation of heavy carbonaceous materials that deactivate the zeolites.
| Original language | English |
|---|---|
| Pages (from-to) | 249-255 |
| Number of pages | 7 |
| Journal | Catalysis Letters |
| Volume | 103 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Oct 2005 |
Keywords
- Alkylation
- Brønsted acid sites
- Hydrogen transfer
- USY zeolite