Suspended bed hydrogenation reaction system

The utility model discloses a suspended bed hydrogenation reaction system, add the pipeline including a plurality of dominant reaction wares, side reaction ware and hydrogen, the upper end of every dominant reaction ware all is provided with gas exports, and the lower extreme all is provided with liquid phase import and liquid phase export, and the liquid phase export of every dominant reaction ware all is connected through pipeline with the liquid phase import of next dominant reaction ware, and the liquid phase that is located the dominant reaction ware of end exports to be passed through pipeline with the feed inlet of side reaction ware lower extreme and be connected, the upper end of side reaction ware is provided with the gas vent, and the lower extreme still is provided with the discharge gate, and the hydrogen export that is provided with on the pipeline with quantity such as pipeline is added to hydrogen, and the hydrogen export links to each other with the pipeline one -to -one. A plurality of dominant reaction wares have guaranteed that the raw materials fully reacts, have improved the conversion rate, and gas is all isolated in each step reaction, and liquid reacts with the hydrogen mixed admission that supplyes on next step, analogizes in proper order, and the lowering system gross pressure improves the product yield.