Method for starting up a fischer tropsch process

A process for preparing a Fischer-Tropsch catalyst comprising the steps of:

• (a1) providing a Fischer-Tropsch catalyst comprising:
• titania
• at least 5 weight percent cobalt, preferably in the range of between 5 to 35 weight percent cobalt, more preferably in the range of between 10 to 35 weight percent cobalt, even more preferably in the range of between 15 to 30 weight percent cobalt, still more preferably in the range of between 15 to 25 weight percent cobalt, calculated on the total weight of the catalyst
• in the range of between to 0.1 to 15 weight percent promoter selected from the group consisting of manganese, rhenium, Group 8-10 noble metals, or mixtures thereof;
• (a2) impregnating the catalyst obtained in step (a1) with one or more solutions comprising chloride ions until the catalyst comprises more than 0.7 up to 10 weight percent of the element chlorine, calculated on the total weight of the catalyst;
• or comprising the step of
• (b) contacting
• cobalt and/or a cobalt compound;
• one or more promoter(s), whereby the promoter preferably comprises manganese, rhenium, Group 8-10 noble metals, or mixtures thereof, more preferably manganese or rhenium, most preferably manganese;
• one or more metal salts of chloride, hydrochloric acid (HCl), one or more organic chloride compounds, or a combination thereof;
• and
• a liquid;
• optionally one or more co-catalyst(s) or precursor(s) therefor;
• with titania;
• And
• (c) drying and/or calcining the material obtained in step (a2) or (b) at a temperature in the range 70 to 350° C.