年产12万吨丁辛醇生产工艺设计

北京理工大学珠海学院2020届本科生毕业设计Process Design of 260,000 t/a Butanol and OctanolAbstractThis design is based on the synthesis reaction of synthesis gas and propylene carbonyl,under the catalysis of rhodium catalyst to synthesize n-butyraldehyde.Some n-butyraldehydeundergoes self-condensation to synthesize octenal via an alkali catalyst,and each aldehyde ishydrogenated under the catalyst of Cu Zn to synthesize alcohol.Carbonylation adoptslow-pressure oxo synthesis method,which has mild reaction conditions,relatively high yield,low equipment loss and mature technology.First,use a reactor with agitator for reaction,andthen use a rectification tower to separate and purify isomers.Purified n-butyraldehyde is sentto the hydrogenation reactor to produce n-butanol according to the actual production ratio,and the condensation reactor It produces octenal (2-ethyl-3-propyl acrolein),which issubsequently hydrogenated to produce octanol(2-ethylhexanol).The process is short,the rawmaterial consumption is low,the amount of equipment required is small,the product isflexible,and it is more suitable for market changes.Because the relative volatility of the components in the process varies greatly,thisprocess is basically based on the separation of the rectification tower.The crude octanol isseparated by the atmospheric pressure rectification separation of the light component octenaland the heavy component Process flow.This design includes market economic analysis,process flow,material balance calculation,heat balance calculation,equipment selection,public works and environmental protection.Butanol as a chemical raw material with highindustrial utilization value,reasonable development is of great significance to economicdevelopment and chemical production.Keywords:Butanol and octanol;carbonyl synthesis;low pressure method;processdesign2