三效精馏节能规律研究及应用系统设计  

Energy-saving Research and Application System Design for Three-effect distillation

作　　者：张鹏[1] 王琨[2] 孙鹤[2] 

机构地区：[1]吉林化工学院化工与材料工程学院,吉林吉林132022 [2]吉林化工学院化学与制药工程学院,吉林吉林132022

出　　处：《化工自动化及仪表》2011年第10期1239-1241,共3页Control and Instruments in Chemical Industry

基　　金：国家自然科学基金项目(20776059);教育部新世纪优秀人才支持计划项目(NCET-10-0154)

摘　　要：用工程模拟软件PROII对不同条件下的各三效精馏流程进行优化模拟,研究进料温度、进料组成、进料相对挥发度对节能效率的影响。结果表明,三效精馏更适宜于进料相对挥发度小于6的物系,节能率可达50%以上,除逆流三效塔釜进料精馏适用于常温进料外,其余各流程均适用于泡点及以上温度进料,除顺流三效塔顶进料精馏外其余各流程均适用于进料中轻组分含量大于重组分含量的情况,进料温度对节能率的影响比进料相对挥发度和进料组成要显著,是关键的影响因素。根据三效精馏节能规律,编制了三效精馏应用系统,为三效精馏的应用设计、流程选择提供了平台。The feed temperature,composition and volatility influences on energy-saving rate of three-effect distillation were simulated with PROII software and a three-effect distillation system was designed.The results indicate that the energy-saving rate of the three-effect distillation suit to the medium with feed volatility of less than 6 can reach 50%.All processes,except for backward-bottom-feed process,can comply with the feed temperature higher than bubble-point;and all processes,except for forward-overhead-feed process,can fit in with the feed composition with more light components.The feed temperature can influence the energy-saving rate much than both feed composition and volatility.

关 键 词：三效精馏 节能率 应用系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]