Process for the production of alkylate gasoline from FCC light aliphatics
US5475175A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Apr 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention provides a process for upgrading hydrocarbon feedstock comprising the steps of: PA1 (i) recovering a C.sub.4 -rich aliphatic stream from a catalytic cracking process; PA1 (ii contacting said C.sub.4 -rich aliphatic stream with an isomerization catalyst comprising a zeolite sorbing 30 to 55 mg n-hexane at 90.degree. C., 83 torr, and 15 to 40 mg 3-methylpentane at 90.degree. C., 90 torr, per g dry zeolite in the hydrogen form in a first reaction stage to selectively isomerize C.sub.4 n-olefins to C.sub.4 isoolefins; and PA1 (iii) contacting the product stream from said first reaction stage with a solid acid alkylation catalyst selected from the group consisting of MCM-36 and MCM-49, as described herein and zeolites having a Constraint Index of less than or equal to about 2, to produce isoparaffinic alkylate gasoline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.