Benzene upgrading reformer integration

Patent · Tue Aug 21 04:00:00 EDT 1990

OSTI ID:6504824

Harandi, M N; Owen, H

This patent describes a continuous process for providing an integrated product recovery system for a primary catalytic hydrocarbon reforming reactor and a secondary catalytic olefins oligomerization-alkylation reactor. It comprises: withdrawing reformer effluent from primary reformer reactor; separating in a primary separation zone the reformer effluent into a primary overhead stream comprising noncondensible light paraffins and a primary bottoms stream comprising C{sub 6} to C{sub 8} aromatic hydrocarbons; withdrawing oligomerization effluent from secondary oligomerization-alkylation reactor; separating in a secondary separation zone the oligomerization effluent into a secondary overhead stream; adding the primary bottoms stream and the secondary bottoms stream to the fractionation column; withdrawing from the top of the fractionation column a stream comprising C{sub 4} {minus} hydrocarbons; withdrawing from the bottom of the fractionation column a stream comprising C{sub 5} + hydrocarbons; adding the C{sub 5} + hydrocarbon stream to the reboiler unit; withdrawing from the reboiler unit a vapor stream comprising benzene and a liquid stream comprising C{sub 5} + hydrocarbons boiling in the gasoline range; adding at least a portion of the vapor stream comprising benzene to the secondary catalytic olefins oligomerization-alkylation reactor; and adding a light olefins feedstream.

• Assignee: Mobil Oil Corp., New York, NY (USA)
• Patent Number(s): A; US 4950823
• Application Number: PPN: US s 7-375172
• OSTI ID: 6504824
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
ALKENES
ALKYLATION
AROMATICS
BENZENE
CATALYTIC CRACKING
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHEMICAL REACTORS
CONTROL
CRACKING
DECOMPOSITION
ENHANCED RECOVERY
FRACTIONATION
FUELS
GASOLINE
HYDROCARBONS
INDUSTRIAL PLANTS
LIQUID FUELS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PETROLEUM REFINERIES
PYROLYSIS
QUALITY CONTROL
RECOVERY
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES