Method for treating dewaxing catalysts
US4892646A · kind A · utility
15Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1988 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | May 2, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for treating a porous crystalline catalyst optionally associated with a metal component such as a noble and/or base metal(s) is described. The method comprises contacting the catalyst with a low molecular weight aromatic compound under coking conditions. Such a treatment method increases the cycle length and the useful life of the catalyst. Using the treated catalyst in a dewaxing process and regenerating the catalyst by treating with hydrogen and a low molecular weight hydrocarbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.