Abstract
Shape-selective methylation of 4-methylbiphenyl (4-MBP) with methanol over different HZSM-5 modified with organic and inorganic P, together with hydrothermal treatment, was studied. Through P modification and hydrothermal treatment, the selectivity to 4,4′-dimethylbiphenyl could be effectively increased. However, the activity could only stabilize for about 4-6 hr. TPP-CBV(4.1) and AHP-CBV(1.7) displayed similar activity and selectivity even though considerably different amounts were used. This was ascribed to the different location of the P compounds on the HZSM-5 zeolite. Due to its larger size, TPP was mainly located on the external surface of ZSM-5 even with higher P content. In the case of AHP, it could easily enter the internal surface in addition to the particle external surface.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 131-133 |
| Number of pages | 3 |
| Journal | ACS Division of Petroleum Chemistry, Inc. Preprints |
| Volume | 47 |
| Issue number | 2 |
| State | Published - Mar 1 2002 |
| Event | ACS National Meeting - Orlando, FL, United States Duration: Apr 7 2002 → Apr 11 2002 |
All Science Journal Classification (ASJC) codes
- Fuel Technology