Device for reducing hydrogen circulation volume in hydrogenation reaction process

The utility model discloses a device for reducing a hydrogen circulation volume in a hydrogenation reaction process. The device for reducing the hydrogen circulation volume in the hydrogenation reaction process comprises a circulating gas compressor, a carburetor, a reactor and a gas-liquid separator; the reactor is divided into multiple sections, sections are in series connection in sequence, the parts are connected through pipelines with regulating valves to form a circulating circuit. The device for reducing the hydrogen circulation volume in the hydrogenation reaction process is simple in structure and low in equipment improvement cost. By using the device for reducing the hydrogen circulation volume in the hydrogenation reaction process, through feeding section by section, remanent hydrogen in the reaction of the previous section can be reused, and the hydrogen circulation volume is significantly reduced.