Circulating type continuous hydrogenation reaction equipment

The circulating type continuous hydrogenation reaction equipment comprises a static mixer, a reaction kettle, a buffer tank, a gas-liquid separation tank, a collection tank, a catalyst filter, a recovery tank, a hydrogen tank, a catalyst tank and a raw material tank, the static mixer comprises a new catalyst filling port, a recovered catalyst filling port, a raw material port and a discharge port, the raw material tank and the catalyst tank are respectively communicated with the raw material port and the new catalyst filling port through corresponding pumps, the discharge port of the static mixer is communicated with an inlet of the reaction kettle, and the hydrogen tank is communicated with a gas inlet of the reaction kettle through a pipeline; a discharge port of the reaction kettle is sequentially connected with the buffer tank and the gas-liquid separation tank through pipelines, a gas phase output product and a liquid phase of the gas-liquid separation tank enter the collection tank, the collection tank