年产8万吨丁二烯生产工艺

80,000 Tons of Butadiene Production Process DesignAbstractButadiene is an important petrochemical organic raw material and synthetic rubbermonomer.is one of the most important components in the four fractions of petroleumrefining carbon.s is second only to petrochemical olefins.Ethylene and propylene,copolymerizes with styrene to form various commonly used resins,and is used to produce1,4-butanediol,dicyandiamide,ethylidene norbornene,diamine,etc.Commonly used organicchemical products are widely used.With China's increasing support for the development ofthe chemical industry in recent years,the domestic butadiene production technology has beencontinuously improved and perfected,and has been able to meet market supply needs for along time.In the production of butadiene,cracking fraction extraction and rectification is themost common method.Based on the difference in solvents,the main production methods ofbutadiene can be divided into acetonitrile method,dimethylformamide method,butadieneextraction combined Process and N-methylpyrrolidone these 4 categories.This graduationdesign refers to an academic paper,adopts the acetonitrile method tenth grade annualproduction of 80,000 tons of butadiene production process,and designs the material balanceand energy balance based on known basic data during the design process,and based on Thedata obtained are used for the selection and design of heat exchangers and tower equipment.This design selects the production process by referring to the literature and establishes theprocess flow chart.On the basis of combining theoretical knowledge and actual production,the graduation project tried its best to ensure the rationality of the calculation results,seektechnical breakthroughs,and strive for more effective use of national resourcesKeywords:butadiene;acetonitrile method;extractive distillation.