AMORPHOUS SILICA-BASED CATALYST AND PROCESS FOR ITS PRODUCTION

This invention relates to a catalyst for the conversion of synthesis gas or methanol to hydrocarbons and to a process for its production. The catalyst comprises a highly porous amorphous silica having a monolayer of an amphoteric metal chemically bonded onto up to 90% of the surface area of the sili...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CARSWELL, ANGELA MARY, ROBINSON, JOSEPH GORDON, BARNES, DAVID IAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS GENERAL METHODS OF ORGANIC CHEMISTRY LUBRICANTS METALLURGY MINERAL WAXES ORGANIC CHEMISTRY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	This invention relates to a catalyst for the conversion of synthesis gas or methanol to hydrocarbons and to a process for its production. The catalyst comprises a highly porous amorphous silica having a monolayer of an amphoteric metal chemically bonded onto up to 90% of the surface area of the silica matrix. The catalyst has a maximum pore diameter of 1.5 nm and the metal is preferably aluminium. The catalyst is produced by treating the silica with a solution of a hydrolysable aluminum compound, removing the solvent and causing the silica surface to hydrolyse the compound, thus chemically bonding the aluminium onto the surface of the silica matrix. Optionally, the catalyst is mixed intimately with a Fischer-Tropsch catalyst to enable the direct conversion of synthesis gas to hydrocarbons. The catalyst will be of use in the conversion of synthesis gas or methanol to higher hydrocarbons.