摘要
运用Aspen Plus流程模拟系统,采用ElectrolyteNRTL和NRTL相结合的物性方法,利用氯丙醇皂化和环氧丙烷水解反应动力学方程,考虑了管道和皂化塔内的反应,实现了对某环氧丙烷装置的皂化过程的模拟。为了使环氧丙烷生产装置的生产能力由5万吨/年扩大到7.5万吨/年,提出了皂化混合器、换热器和皂化塔的改造方案。各项参数指标和生产装置生产实际数据的相对误差在3%以内,表明模拟中选用的单元操作模型及物性方法准确可靠的;并对扩产后的换热器和塔设备能力进行了核算,结果表明,能够满足年产7.5万吨环氧丙烷的要求,为环氧丙烷生产的扩产改造提供依据。
To expand production capacity of a propylene oxide plant, Aspen Plus software was used to simulate and analyze the saponification process. By combining Electrolyte NRTL and NRTL model, and using the reaction kinetics of propylene chlorohydrin saponification and propylene oxide hydrolysis, the simulation of saponification process in propylene oxide plant was accomplished in this paper. In order to increase the capacity of the propylene oxide plant from 50 （kt.a＂） to 75 （kt.al）, accordingly several reform programs for pipelines, the saponification mixer, the saponification column, heat exchanger are presented. The relative errors between simulation results and actual data were less than 3 %. The unit operation model and thermodynamic model used here had been proved accurately and reliably to simulate the propylene oxide plant. The capacity of expanded heat exchanger and tower were rated to provide good foundation for expanding production of propylene oxide plant.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2012年第11期1405-1408,共4页
Computers and Applied Chemistry
基金
国家自然科学基金资助项目(21176127)
关键词
环氧丙烷
氯醇法
皂化反应
模拟
扩产
propylcne oxide, chlorohydrination, saponification reaction, simulation, expansion
