Fischer-Tropsch synthesis catalyst, manufacturing method therefor, and hydrocarbon manufacturing method

A method, comprising:

• loading an active metal for loading a cobalt compound on a carrier containing silica having an average pore diameter of 8 to 25 nm so that the loading amount of the cobalt compound as a cobalt atom becomes 10 to 30% by mass, based on the mass of the catalyst;
• calcining the carrier supporting the cobalt compound to obtain a catalyst precursor in which the cobalt compound is converted into cobalt oxide;
• reducing the catalyst precursor in an atmosphere containing at least molecular hydrogen to obtain a reduced catalyst precursor;
• and
• steaming the reduced catalyst precursor with a mixed gas containing 1 to 30% by volume of steam and an inert gas at a temperature of 100 to 300° C. to obtain a Fischer-Tropsch synthesis catalyst;
• wherein the Fischer-Tropsch synthesis catalyst comprises 10 to 30% by mass, as a metal atom, of metallic cobalt and/or cobalt oxide, based on the mass of the catalyst, supported on a carrier containing silica,
• the carrier has an average pore diameter of 8 to 25 nm, and
• the metallic cobalt and/or cobalt oxide has an average crystallite diameter of not less than the average pore diameter of the carrier and less than 35 nm.