Slurry bubble column reactor

The utility model discloses a slurry bubble column reactor to solve the problem that uneven synthesis gas distribution is easy to cause in existing slurry bubble column reactors. The slurry bubble column reactor is provided with a reactor casing (1), a partition board (8) is arranged on the upper portion of the reactor casing, a distribution board (32) is arranged on the lower portion, and a bubble cap distributor (31) is arranged on the distribution board. A heat exchange tube (5), a liquid solid separator (4), gas liquid cyclone (7) and a circulation cup (6) are arranged in the reactor casing. An air inlet pipe (10) is arranged on a bottom sealing head of the reactor casing, and an air outlet pipe (11) is arranged on a top sealing head. A pre-distributor (2) is arranged below the distribution board, and is a rotary panel protruding upward and with a shaft axis of the reactor casing serving as a rotating shaft, and a plurality of holes are opened evenly on the pre-distributor. The bottom edge of the pre-distributor is connected to the bottom sealing head of the reactor casing. The slurry bubble column reactor is mainly used for the Fischer Tropsch synthesis process.