Integrated process for the production of diisopropyl ether and gasoline

Patent · Tue Apr 07 00:00:00 EDT 1992

OSTI ID:5124656

Owen, H; Harandi, M N

This patent describes an integrated process for the production of diisopropyl ether and C{sub 5+} gasoline boiling range hydrocarbons. It comprises contacting C{sub 3} hydrocarbon feedstock and high pressure separator aqueous effluent recycle stream with acidic hydration and etherification catalyst in an etherification zone under etherification conditions to produce an effluent stream containing diisopropyl ether, isopropanol, unreacted water, unreacted C{sub 3} hydrocarbons and higher olefinic hydrocarbons; separating and extracting the effluent stream in a high pressure separation zone in contact with fresh water feed-stream to produce the aqueous effluent recycle stream containing a portion of the isopropanol and unreacted water and a separation zone effluent stream containing diisopropyl ether, unextracted isopropanol, unreacted C{sub 3} hydrocarbons and higher olefinic hydrocarbons; heating and flashing the separator effluent stream at a temperature sufficient to further separate the separator effluent to produce a flash evaporator overhead vapor stream for compression and recycle to the etherification zone, the recycle stream containing a major portion of the unreacted C{sub 3} hydrocarbons, and an evaporator bottom steam containing diisopropyl ether, unextracted isopropanol, a minor portion of the unreacted C{sub 3} hydrocarbons and higher olefinic hydrocarbons; separating the evaporator bottom stream to produce diisopropyl ether, a first stream containing C{sub 3} hydrocarbons and a second stream containing isopropanol and higher olefinic hydrocarbons.

• Assignee: Mobil Oil Corp., Fairfax, VA (United States)
• Patent Number(s): US 5102428; A
• Application Number: PPN: US 7-424421
• OSTI ID: 5124656
• Resource Relation: Patent File Date: 20 Oct 1989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM PRODUCTS
REFINING
PETROLEUM REFINERIES
CHEMICAL REACTION KINETICS
CHEMICAL COMPOSITION
ETHERS
GASOLINE
FUELS
INDUSTRIAL PLANTS
KINETICS
LIQUID FUELS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PROCESSING
REACTION KINETICS
020400* - Petroleum- Processing
020500 - Petroleum- Products & By-Products
023000 - Petroleum- Properties & Composition