Fluid bed oligomerization of olefins

Patent Application · Tue Aug 27 00:00:00 EDT 1991

OSTI ID:5676787

Harandi, M N; Owens, H

This patent describes a continuous process for upgrading lower olefins to increase gasoline yield and ease of LPG recovery. It comprises separating a C{sub 2}-C{sub 4} cracked olefinic gas into a primary overhead stream containing C{sub 2} hydrocarbons having at least about 10% ethene and a secondary stream comprising a major amount of C{sub 3}-c{sub 4} olefinic hydrocarbons; adding the primary stream containing C{sub 2} hydrocarbons to a primary fluidized reaction zone comprising solid crystalline zeolite catalyst particles in a reactor bed operating under high severity conditions; adding the secondary stream comprising C{sub 3}-C{sub 4} olefinic hydrocarbons to a secondary fluidized bed reaction zone comprising solid crystalline zeolite catalyst particles in a reactor bed operating under turbulent regime low severity conditions; and withdrawing a portion of partially deactivated catalyst particles from the primary high severity fluidized bed reaction zone.

• Assignee: Mobil Oil Corp., Fairfax, VA (USA)
• Application Number: PPN: US 7-480697
• OSTI ID: 5676787
• Resource Relation: Patent File Date: 15 Feb 1990
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ALKENES
REFINING
GASOLINE
YIELDS
LIQUEFIED PETROLEUM GASES
RECOVERY
CATALYSTS
DEACTIVATION
FLUIDS
FUELS
HYDROCARBONS
LIQUEFIED GASES
LIQUID FUELS
LIQUIDS
NATURAL GAS LIQUIDS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PROCESSING
020500* - Petroleum- Products & By-Products
020400 - Petroleum- Processing