Hydrodewaxing with mixed zeolite catalysts
US4575416A · kind A · utility
19Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Jul 16, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalytic dewaxing process is improved by the use of a mixed zeolite catalyst which combines the following components: a first zeolitic catalyst having a Constraint Index not less than 1, a second, different, catalytic component of specified characteristics, and a hydrogenation component. This process for preparing the catalyst is also disclosed. Examples of specific combinations of dewaxing catalysts include ZSM-5 and Dealuminized Y, ZSM-5 and ZSM-12, and ZSM-5 and TEA Mordenite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.