Method for making a catalyst comprising a phosphorous modified zeolite and use of said zeolite
US10464053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2012 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jan 26, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method to make a phosphorus modified zeolite can include providing a zeolite having at least one ten member ring, making an ion-exchange, steaming the zeolite, and introducing phosphorus on the zeolite. The zeolite can be mixed with one or more binders and shaping additives, and then shaped. A metal can be introduced, and the catalyst can be washed, calcined, and steamed in an equilibration step. The steaming can be at performed at a steam severity (X) of at least about 2. The steaming can be performed at a temperature above 625° C. The catalyst can be used in alcohol dehydration, olefin cracking, MTO processes, and alkylation of aromatics by alcohols with olefins and/or alcohols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.