Process for enhanced olefin production
US7317133B2 · kind B2 · utility
17Cited by
29References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2002 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Nov 21, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal alumino phosphate catalyst to produce a light weight olefin stream. A propylene stream and/or mixed butylene is fractionated from said light weight olefin stream and a medium weight C4 to C7 stream is cracked in a separate olefin cracking reactor to enhance the yield of ethylene and propylene products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.