Process for converting oxygenates to olefins using molecular sieve catalysts comprising desirable carbonaceous deposits
US6023005A · kind A · utility
60Cited by
14References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1997 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | Jul 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to methods for selectively converting oxygenates to light olefins, preferably ethylene and propylene, in which desirable carbonaceous deposits are maintained on a total reaction volume of catalyst by totally regenerating only a portion of the total reaction volume of catalyst and mixing the regenerated portion with the unregenerated total reaction volume of catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.