FE-CO catalyst slurry system for use in alpha olefin production

Patent · Mon Nov 24 23:00:00 EST 1986

OSTI ID:7005824

Fiato, R A; McVicker, G B; Montagna, A A

A process is described for synthesizing hydrocarbons containing alpha olefins comprising contacting a gaseous feed mixture of H/sub 2/ and CO, in a reaction zone, with a slurry catalyst system at elevated temperature for a time sufficient to convert at least a portion of the gaseous feed to the alpha olefins. The catalysts slurry system is prepared by a process comprising the steps of: (a) heating a slurry mixture comprised of: a Fischer-Tropsch slurry liquid, an iron carbonyl compound, a cobalt carbonyl compound, or iron and cobalt compounds capable of forming carbonyl complexes in an atmosphere of CO, and mixtures thereof, and a powdered support. The iron and cobalt compounds are present in a total iron:cobalt atomic ratio of about 35:1 to 1:10, taken as free metals. The cobalt carbonyl compound has a lower melting point/decomposition temperature than the iron carbonyl compound. The slurry mixture is heated in a carbon monoxide atmosphere under pressure, at a temperature above the melting point/decomposition temperature of the cobalt compound for a time sufficient to substantially decompose the cobalt compound; and (b) heating the slurry mixture from step (a) at a temperature above the melting point/decomposition temperature of the iron compound in the CO atmosphere under pressure, to substantially decompose the iron compound; and (c) heating the slurry mixture from step (b) in an atmosphere of hydrogen gas to substantially reduce the iron and cobalt carbonyl compounds and their decomposition products to form the catalyst.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4624967
• OSTI ID: 7005824
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT COMPOUNDS
DISPERSIONS
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
HYDROCARBONS
HYDROGEN
IRON COMPOUNDS
MELTING POINTS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
PRESSURE DEPENDENCE
QUANTITY RATIO
SLURRIES
SUSPENSIONS
SYNTHESIS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE