COBALT-BASED CATALYSTS ACTIVATION PROCESS Russian patent published in 2007 - IPC B01J37/18 B01J23/75 

FIELD: petrochemical process catalysts.

SUBSTANCE: invention relates to preparation of supported Fischer-Tropsch catalysts and comprises treatment of supported Fischer-Tropsch catalyst precursor in the first step, which precursor is in pre-reduced state in the form of particles. Precursor contains cobalt-impregnated catalyst support and reducible labilized cobalt oxide in fired state selected from compounds depicted by formulas including CoO_aH_b, wherein a=1.7 and b>0, and monometallic hydrocalcite-type compounds Coⁱⁱ _0,74Coⁱⁱⁱ _0,26(OH)_2,01(NO)_0,21(CO)_0,02×0,6H₂O. Cobalt oxide is reduced with reducing gas, which is pure hydrogen, at the first volumetric velocity of supplied gas SV1 and first heating velocity HR1 to form partially reduced catalyst precursor. Resulting precursor is activated, in the second step, with reducing gas, which is pure hydrogen, at the second volumetric velocity of supplied gas SV2 and second heating velocity HR2, so that SV2<SV1 and/or HR2≥HR1 provided that, when SV2=SV1, then HR2≠HR1 and, HR2=HR1, then SV2≠SV1.

EFFECT: achieved maximum catalytic activity.

12 cl, 3 dwg, 5 tbl, 5 ex