METHOD OF PREPARING SUPPORTED COBALT-BASED FISCHER-TROPSCH SYNTHESIS CATALYST Russian patent published in 2012 - IPC C10G2/00 B01J23/75 B01J37/18 C07C1/04 

FIELD: chemistry.

SUBSTANCE: method of preparing the catalyst involves: at the first activation step, treating particles of the supported cobalt-based Fischer-Tropsch catalyst precursor, having a catalyst support saturated with cobalt and containing cobalt oxide, with a hydrogen-containing reducing gas or nitrogen-containing gas at a first heating rate HR1 until temperature of the precursor reaches a value T₁ where 80°C≤T₁≤180°C, to form a partially treated catalyst precursor; at the second activation step, treating the partially treated catalyst precursor with a hydrogen-containing reducing gas at a second heating rate HR2, where 0≤HR2<HR1, for a period of time t₁ where t₁ is equal to 0.1-20 hours, to form a partially reduced precursor, and then at the third activation step, treating the partially reduced catalyst precursor with a hydrogen-containing reducing gas at a third heating rate HR3, where HR3>HR2, until the partially reduced precursor reaches a temperature T₂, where 300°C≤T₂≤600°C and holding the partially reduced catalyst precursor at T₂ for a time t₂, where t₂ is equal to 0-20 hours, to form an activated supported cobalt-based Fischer-Tropsch catalyst.

EFFECT: obtaining a catalyst with high activity.

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