Butadiene is a monomer for the production of synthetic rubber, and is the main raw material for the production of various synthetic rubbers (such as styrene butadiene rubber, butadiene rubber, nitrile rubber, and neoprene). With the development of styrene plastics, copolymerization of styrene and butadiene is used to produce various resins with a wide range of uses (such as ABS resin, SBS resin, BS resin, MBS resin). In addition, butadiene is also used to produce ethylidene norbornene, engineering plastics, nylon 66 monomer, sulfolane, anthrone, tetrahydrofuran, etc., and is an important basic chemical raw material.