Preparation and use of supported potassium (or rubidium)-Group VIII-metal cluster catalysts in CO/H/sub 2/ Fischer-Tropsch synthesis reactions

Patent · Tue May 15 00:00:00 EDT 1979

OSTI ID:6081183

McVicker, G B; Vannice, M A

This invention relates to unique supported potassium (or rubidium)-Group VIII-metal cluster catalysts which are useful in CO/H/sub 2/ reactions (Fischer-Tropsch synthesis reactions). The novel catalysts of the instant invention are prepared by depositing well characterized potassium (or rubidium)-Group VIII-metal carbonyl cluster complexes onto high surface area supports. Following a subsequent reduction, the precursor bimetallic cluster complexes are decomposed on the support surface forming a potassium (or rubidium) promoted Group VIII-metal cluster catalyst in which the potassium (or rubidium) and Group VIII metals are intimately associated. These unique, highly promoted cluster catalysts have been found to demonstrate high Group VIII-metal dispersions and enhanced Fischer-Tropsch activities and selectivities for producing olefinic and paraffinic hydrocarbons. In addition methane formation is dramatically reduced over the supported bimetallic cluster catalysts of the instant invention when compared to conventionally prepared supported potassium (or rubidium) promoted Group VIII-metal catalysts. 3 tables.

• Assignee: Exxon Research and Engineering Co.
• Patent Number(s): US 4154751
• OSTI ID: 6081183
• Resource Relation: Patent File Date: Filed date 1 Mar 1978
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
01 COAL, LIGNITE, AND PEAT
ALKALI METALS
CATALYTIC EFFECTS
FISCHER-TROPSCH SYNTHESIS
CATALYSTS
POTASSIUM
RUBIDIUM
CARBON MONOXIDE
CATALYST SUPPORTS
HYDROCARBONS
HYDROGEN
METALS
METHANATION
PRECURSOR
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
MECHANICAL STRUCTURES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SUPPORTS
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)
010404 - Coal
Lignite
& Peat- Gasification