Aromatization and etherification process integration
This patent describes a continuous process for the production of aromatics-rich high octane gasoline and ether-rich high octane gasoline. It comprises the steps of: contacting a C/sub 4/+ hydrocarbon feedstream containing iso-olefins and excess methanol based on the iso-olefins with an acid etherification catalyst under etherification conditions in an etherification zone whereby an effluent stream is produced comprising methyl tertiary alkyl ethers, unreacted methanol and hydrocarbons; distilling the effluent stream whereby a distillate bottom stream is produced comprising high octane ether-rich C/sub 5/+ gasoline and a distillate overhead stream comprising unreacted methanol and C/sub 5/- hydrocarbons; passing the distillate overhead stream and an aromatization hydrocarbon feedstream comprising an ethene rich gas feedstream and C/sub 3/ hydrocarbons to an olefins and paraffins fixed, fluid or moving bed aromatization zone under aromatization conditions in contact with medium pore size shape selective metallosilicate catalyst having the structure of ZSM-5 whereby a high octane aromatics-rich C/sub 5/+ gasoline is procluded and hydrogen-rich fuel gas.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4854939
- Application Number:
- PPN: US 7130260A
- OSTI ID:
- 5322449
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
ALKENES
ANTIKNOCK RATINGS
AROMATIZATION
CATALYSTS
CHEMICAL REACTIONS
DISTILLATION
ETHERS
FUELS
GASOLINE
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PRODUCTION
SEPARATION PROCESSES
ZEOLITES