Process for converting a heavy feed into middle distillate
US10077218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Oct 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention describes a process for the conversion of a heavy feed which can be used to improve the selectivity for middle distillate. The process employs a catalytic cracking unit followed by one or more units for the oligomerization of C2 to C9 olefins which can preferentially produce an additional cut termed the middle distillate. The light portion of the oligomerate produced which cannot be incorporated into the middle distillate cut is recycled to the FCC unit for cracking into light olefins which are returned to the oligomerization units as a supplement to the olefins of the feed in order to preferentially form heavy oligomerates which can be incorporated into the middle distillate cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.