Catalysts
AssigneeSastech (Proprietary) Limited
InventorsRafael Luis Espinoza, Jacobus Lucas Visagie, Peter Jacobus Van Berge, Franciscus Hermanus Bolder
Life of this patent
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Abstract
To prepare a Fischer-Tropsch catalyst, a slurry comprising a particular alumina carrier, water and an active component selected from the group consisting in cobalt (Co), iron (Fe) and mixtures thereof, is subjected to a sub-atmospheric pressure environment. The alumina carrier is thereby impregnated by the active component. The impregnated carrier is dried under a sub-atmospheric pressure environment. The dried impregnated carrier is calcined, thereby to obtain the Fischer-Tropsch catalyst.
Claims17
A process for preparing a Fischer-Tropsch catalyst, which process comprises
- subjecting a slurry comprising a particulate alumina carrier, water and an active component selected from the group consisting in cobalt (Co), iron (Fe) and mixtures thereof, to a sub-atmospheric pressure environment, thereby to impregnate the alumina carrier with the active component;
- drying the impregnated carrier under a sub-atmospheric pressure environment;
- and
- calcining the dried impregnated carrier, thereby to obtain the Fischer-Tropsch catalyst.
A process for preparing a Fischer-Tropsch catalyst, which process comprises
- subjecting a slurry comprising a particulate alumina carrier having pores with a minimum pore diameter of at least 12 nm and/or having been chemically pretreated with ammonia and/or having been calcined at a temperature between 200.degree. C. and 1000.degree. C., water and an active component selected from the group consisting in cobalt (Co), iron (Fe) and mixtures thereof, to a sub-atmospheric pressure environment, thereby to impregnate the alumina carrier with the active component;
- drying the impregnated carrier under a sub-atmospheric pressure environment;
- and
- calcining the dried impregnated carrier, thereby to obtain the Fischer-Tropsch catalyst.
Dependencies are inferred from the claim text.