Conversion of synthesis gas to diesel fuel and gasoline
A process is described for the conversion of synthesis gas to diesel fuel and gasoline, which comprises contacting synthesis gas consisting essentially of CO and hydrogen in a synthesis gas conversion zone with a synthesis gas conversion catalyst comprising cobalt and 0 to about 100 parts by weight of a Group IIIB or IVB metal oxide per 100 parts by weight of the cobalt, on a high surface area, high purity, low acidity alumina support of gamma-alumina, eta-alumina or mixtures thereof. The catalyst has a hydrogen chemisorption value of from about 100 to about 300 micromol of hydrogen per gram of total catalyst when measured at 25/sup 0/C, the catalyss having been prepared by (A) impregnation of the alumina support with a non-aqueous, organic solvent impregnation solution of cobalt nitrate and (B) reduction of the impregnated alumina support by heating, in the presence of hydrogen gas, at a heating rate of from about 0.5/sup 0/C to about 5/sup 0/C per minute to a maximum hold temperature in the range of 180/sup 0/ to about 220/sup 0/C for a hold time of 6 to about 24 hours and thereafter heating the impregnated alumina support in the presence of hydrogen gas while heating up to a maximum hold temperature of from about 250/sup 0/ to about 400/sup 0/C for a hold time of 6 to about 65 hours. This produces a reaction effluent comprising straight chain hydrocarbons boiling in the diesel fuel boiling range and in the C/sub 5/-C/sub 9/ range, separating a stream comprising the straight chain paraffins in the C/sub 5/-C/sub 9/ range from the reaction effluent and subjecting the separated stream to dehydrocyclization in the presence of hydrogen and a dehydrocyclization catalyst in a dehydrocyclization conversion zone to produce a high octane gasoline product.
- Assignee:
- Chevron Research Co., San Francisco, CA
- Patent Number(s):
- US 4605680
- OSTI ID:
- 5237703
- Resource Relation:
- Patent File Date: Filed date 23 Aug 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COBALT
CATALYTIC EFFECTS
DIESEL FUELS
CHEMICAL PREPARATION
GASOLINE
ALKANES
ALUMINIUM OXIDES
ANTIKNOCK RATINGS
BOILING POINTS
CARBON MONOXIDE
CATALYST SUPPORTS
CATALYSTS
CHEMISORPTION
COBALT NITRATES
DEHYDROCYCLIZATION
HEATING
HIGH TEMPERATURE
HYDROGEN
IMPREGNATION
MEDIUM TEMPERATURE
OCTANE
ORGANIC SOLVENTS
QUANTITY RATIO
SYNTHESIS GAS
TIME DEPENDENCE
ALUMINIUM COMPOUNDS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
ELEMENTS
FLUIDS
FUELS
GASES
HYDROCARBONS
LIQUID FUELS
METALS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
SEPARATION PROCESSES
SOLVENTS
SORPTION
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)