摘要
在修正现有丙烯氨氧化反应网络的基础上,采用一维扩散模型对丙烯氨氧化合成丙烯腈循环流化床提升管反应器进行了模拟计算,得到了反应产物轴向浓度分布和操作条件对丙烯腈收率的影响,考察了返混对丙烯腈收率的影响和循环流化床作为丙烯腈合成反应器的效果。
circulating fluidized bed reactor model for synthesizing acrylonitrile is propossedA modified reaction kinetics network has been given with the kinetic parameters for two different catalysts(type A,type B) obtained by fitting the data acquired from commercial fluidized bedThe simulation results show that the axial gas dispersion has strong influence on the yield of acrylonitrileComparison between CFB reactor and turbulent fluidized bed reactor shows that the yield can increase by 10%~11% for type A catalyst and 8%~9% for type B catalystThis great increase in yield is largely due to the reduction of axial gas dispersion in CFBAs the reaction rate is relatively slow,the average solids density has strong influence on the conversion
出处
《石油化工》
CAS
CSCD
北大核心
1998年第4期276-280,共5页
Petrochemical Technology
基金
国家自然科学基金
清华大学基金
关键词
循环流化床
丙烯腈
反应器
数学模型
丙烯氨
circulating fluidized bed,acrylonitrile reactor model,back mixing