Catalytic reactor system for conversion of light olefin to heavier hydrocarbons with sorption recovery of unreacted olefin vapor

Patent · Tue Jan 30 04:00:00 EST 1990

OSTI ID:7017199

Hsia, C H; Owen, H; Wright, B S

This patent describes a continuous system for converting ethene-rich olefinic feedstock to heavier liquid hydrocarbons. It comprises: means for combining the feedstock stream with a liquid hydrocarbon stream containing a major amount of gasoline range hydrocarbons including C{sub 5}{plus} olefins; reactor means for contacting the combined feedstock-gasoline stream at elevated temperature and pressure in a reaction zone with shape selective medium pore zeolite oligomerization catalyst to convert a portion of the olefinic components to heavier hydrocarbons; heat exchange means for cooling oligomerization reaction effluent to condense at least a portion of the heavier hydrocarbons; means for separating the cooled and partially condensed effluent stream into a ethene-rich vapor stream and condensed liquid hydrocarbon stream; means for fractionating the condensed hydrocarbons to provide a gasoline stream, a distillate product stream and a light hydrocarbon vapor stream containing unreacted ethene; sorption means for contacting the ethene-rich vapor from the separation step and the light hydrocarbon vapor stream under sorption pressure conditions with a cooled liquid portion of the gasoline hydrocarbon to sorb ethene into the liquid gasoline stream; and means for recycling the sorbed ethene and gasoline stream for combining with an ethene-rich feedstock.

• Assignee: Mobil Oil Corp. New York, NY
• Patent Number(s): A; US 4897245
• Application Number: PPN: US 6678954A
• OSTI ID: 7017199
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKENES
CHEMICAL REACTORS
FLUIDS
FRACTIONATION
FUELS
GASOLINE
HYDROCARBONS
LIQUID FUELS
LIQUIDS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PROCESSING
PRODUCTION
SEPARATION PROCESSES
SORPTION