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

Patent · Tue Mar 11 04:00:00 EST 1980

OSTI ID:5839325

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/sup 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 viiimetal 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.

• Assignee: Exxon Research and Engineering Co
• Patent Number(s): US 4192777
• OSTI ID: 5839325
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKALI METAL COMPLEXES
ALKANES
ALKENES
CARBONYLS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COMPLEXES
FISCHER-TROPSCH SYNTHESIS
HYDROCARBONS
ORGANIC COMPOUNDS
POTASSIUM COMPLEXES
PRODUCTION
RUBIDIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES