文献类型：期刊文献

中文题名：Kaibel分壁精馏塔分离四元醇动态控制

英文题名：Dynamic control of quaternary alcohol separation in Kaibel divided-wall column

作者：何桂春[1];伍祥[1];潘慧[1];张英[2];薄德臣[2];凌昊[1]

机构：[1]华东理工大学化工学院化学工程联合国家重点实验室,上海200237;[2]中国石化抚顺石油化工研究院,辽宁抚顺113001

年份：2019

卷号：48

期号：5

起止页码：478

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金项目(21476081);上海市教育委员会科研创新重点项目(14ZZ058)

语种：中文

中文关键词：Kaibel分壁精馏塔;四元醇混合物;温度控制;模拟

外文关键词：Kaibel divided wall column;quaternary alcohol mixture;temperature control;simulation

摘要：以甲醇、乙醇、正丙醇和正丁醇四元混合物为研究对象,在稳态精馏模拟和优化的基础上,搭建了Kaibel分壁精馏塔(KDWC)小试实验装置,全塔由7段塔节组成,共计39块理论板;采用SIMATIC S7-300系统对KDWC的4个产品回路进行温度控制,利用上位机WinCC控制面板调节操作参数,实现了小试装置的平稳开车;考察KDWC等摩尔比进料的稳态分离过程及对进料组成发生±20%波动后KDWC的分离效果进行动态实验研究。实验结果表明,4组产品纯度均满足90%(x)的设计要求,侧线产品中轻重杂质含量与模拟结果略有不同;4×4温度控制结构能够实现对KDWC的稳定控制,产品纯度(x)介于88.17%～93.99%之间,误差在-2%～+4%以内。
The separation of a quaternary mixture consisting of methanol,ethanol,n-propanol and n-butanol was studied and a lab-scale Kaibel divided wall column(KDWC) equipment with 7 sections and 39 theoretical plates was built based on steady state simulation and optimization. SIMATIC S7-300 is used for setting up four product temperature control loops and WinCC control panel is used for adjusting the operating parameters to realize the smooth start-up of the KDWC. And the steadystate separation process of KDWC equimolar ratio feed was investigated and the dynamic experimental study on the separation effect of KDWC after ±20% fluctuation of feed composition was processed. The result showed that the purity of the four groups of products meets the design requirements of 90%(x),and the composition of light and heavy impurities in side streams are slightly different from the simulation results. KDWC can be smoothly controlled by the 4×4 temperature control structure with the mole purity of products ranging between 88.17% and 93.99%,and the purity deviation of the product can be controlled within a range of -2%-+4%.