Sasol South Africa Limited

Jana Heloise Potgieter

Jan Mattheus Botha

Denzil James Moodley

Jan Van De Loosdrecht

Hendrik Van Rensburg

Jurie Christiaan Wessels Swart

Jolandie Zonja Davel

Prabashini Moodley

Jean Louis Gauché

Cornelia Pienaar

The invention provides a process for preparing a cobalt-containing catalyst precursor. The process includes calcining a loaded catalyst support comprising a silica (SiO) catalyst support supporting cobalt nitrate to convert the cobalt nitrate into cobalt oxide. The calcination includes heating the loaded catalyst support at a high heating rate, which does not fall below 10° C./minute, during at least a temperature range A. The temperature range A is from the lowest temperature at which calcination of the loaded catalyst support begins to 165° C. Gas flow is effected over the loaded catalyst support during at least the temperature range A. The catalyst precursor is reduced to obtain a Fischer-Tropsch catalyst.

Process for preparing a cobalt-containing catalyst precursor and process for hydrocarbon synthesis

The present invention relates to catalysts, more particularly to a cobalt-containing catalyst composition. The present invention further relates to a process for preparing a cobalt-containing catalyst precursor, a process for preparing a cobalt-containing catalyst, and a hydrocarbon synthesis process wherein such a catalyst is used. According to a first aspect of the invention, there is provided a cobalt-containing catalyst composition comprising cobalt and/or a cobalt compound supported on and/or in a silica (SiO) catalyst support wherein the average pore diameter of the catalyst support is more than 20 nm but less than 50 nm; the catalyst composition also including a titanium compound on and/or in the catalyst support, and a manganese compound on and/or in the catalyst support.

Cobalt-containing catalyst composition

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Vaalpark, South Africa

Jana Heloise Potgieter