Fixed bed reactor for Fischer-Tropsch synthesis

The invention belongs to the technical field of Fischer-Tropsch synthesis, and discloses a fixed bed reactor for Fischer-Tropsch synthesis. The fixed bed reactor comprises a shell, and the shell comprises an upper seal head, a cylinder and a lower seal head which are connected in sequence; the cylinder comprises an outer shell and an inner shell which are arranged inside and outside, and a gas-liquid separation channel is formed between the outer shell and the inner shell; the interior of the shell is sequentially divided into a vapor-liquid separation chamber, a cooling water distribution chamber, a reaction chamber and a product separation chamber from top to bottom, and the reaction chamber is located in the inner shell; a plurality of heat exchange tubes are arranged in the reaction chamber, the inlet ends of the heat exchange tubes are communicated with the cooling water distribution chamber, and the outlet ends are communicated with the vapor-liquid separation chamber; the top of the vapor-liquid separa