Integrated olefin processing

Patent · Tue Aug 17 04:00:00 EDT 1993

OSTI ID:6061864

Makovec, D J; Dunn, R O; Pfile, M E; Patton, G R; Lew, L E

A method is described for processing a paraffin hydrocarbon feedstock and a product of catalytic cracking of heavy hydrocarbons, said product containing diolefin compounds, so as to produce alkylate and oxygenate gasoline blending components, comprising the steps of: dehydrogenating the feedstock to produce a dehydrogenate stream comprising olefin compounds and diolefin compounds; separating said product of catalytic cracking of heavy hydrocarbons into a C[sub 4] olefin stream and a C[sub 5] olefin stream; hydroisomerizing said C[sub 5] olefin stream in a first hydroisomerization zone so as to hydrogenate diolefins to olefins and to produce a first hydroisomerate stream; combining said dehydrogenate stream and said C[sub 4] olefin stream to form a first combined stream; hydroisomerizing said first combined stream in a second hydroisomerization zone so as to hydrogenate diolefins to olefins and to produce a second hydroisomerate stream; combining said first hydroisomerate stream and said second hydroisomerate stream to form a second combined stream; etherifying said second combined stream in an etherification zone to produce an oxygenate stream comprising oxygenate compounds and unreacted compounds; alkylating a significant portion of said unreacted compounds by a branched chain paraffin hydrocarbon to produce an alkylate stream; and whereby said diolefin compounds are hydrogenated to olefins and alkylate and oxygenate gasoline blending components are produced. A second method is described which differs only in that instead of combining the first and second hydroisomerate streams and then etherifying, this method etherifies the two streams separately.

• Assignee: Phillips Petroleum Co., Bartlesville, OK (United States)
• Patent Number(s): US 5237115; A
• Application Number: PPN: US 7-899820
• OSTI ID: 6061864
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ADDITIVES
ALKENES
ALKYLATION
CATALYTIC CRACKING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DEHYDROGENATION
DISPERSIONS
ETHERS
FUEL ADDITIVES
HYDROCARBONS
ISOMERIZATION
MIXTURES
MOLECULAR WEIGHT
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PROCESSING
PYROLYSIS
REFINING
SEPARATION PROCESSES
SYNTHESIS
THERMOCHEMICAL PROCESSES
VISCOSITY