Olefin fractionation and catalytic conversion system
US4471147A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Jun 29, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A continuous catalytic process for converting an olefinic feedstock comprising ethylene and C.sub.3.sup.+ olefins to heavier liquid hydrocarbon product comprising the steps of PA0 (a) prefractionating the olefinic feedstock to obtain a gaseous stream rich in ethylene and a liquid stream containing C.sub.3.sup.+ olefins; PA0 (b) vaporizing and contacting the liquid stream from the prefractionating step with hydrocarbon conversion oligomerization catalyst in a catalytic reactor system to provide a heavier hydrocarbon effluent stream comprising distillate, gasoline and lighter hydrocarbons; PA0 (c) fractionating the effluent stream to recover distillate, gasoline and lighter hydrocarbons separately; PA0 (d) recycling at least a portion of the recovered gasoline as a liquid sorption stream to prefractionating step (a); and PA0 (e) further reacting the recycled gasoline together with sorbed C.sub.3.sup.+ olefins in the catalytic reactor system of step (b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.