Catalytic conversion of olefins to heavier hydrocarbons

Patent · Tue Mar 12 04:00:00 EST 1985

OSTI ID:5515895

Tabak, S A; Owen, H; Wright, B S

A catalytic process for converting an olefinic feedstock comprising lower olefin to heavier hydrocarbon product comprising the steps of: contacting the feedstock and a recycled hydrocarbon with shape-selective zeolite oligomerization catalyst in catalytic reaction zone at elevated temperature and pressure to provide a heavier hydrocarbon effluent stream comprising heavy, intermediate and light hydrocarbons; flashing the effluent stream between the reaction zone and a phase separation zone by reducing pressure of the effluent stream, thereby producing a heavy liquid stream rich in heavy hydrocarbons and a flashed effluent vapor stream containing lighter hydrocarbons; separating and recovering a recycle stream rich in intermediate range hydrocarbons from the separation zone and pressurizing the recycle stream for recycle to the reactor inlet; further fractionating the heavy liquid stream and flashed effluent vapor from the phase separation zone in first distillation tower to remove light hydrocarbons therefrom; and recovering substantially all of the heavy hydrocarbons produced in the reaction zone in a fractionated liquid product stream.

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 4504693
• OSTI ID: 5515895
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKENES
CATALYTIC CRACKING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
FRACTIONATION
FUELS
GASOLINE
HYDROCARBONS
LIQUID FUELS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PRESSURIZING
PRODUCTION
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES