化工进展2017，Vol.36Issue(2)：756-765,10.DOI:10.16085/j.issn.1000-6613.2017.02.049
共沸精馏隔壁塔与萃取精馏隔壁塔的控制研究
Control of azeotropic dividing wall column and extractive dividing wall column
摘要
Abstract
Azeotropic and extractive dividing wall column were used for the separation of multiple azeotrope mixture or closing-boiling mixture. Steady-state simulation of the two processes was established by Aspen Plus. The different matching relationships between manipulate variables and control variables were determined through the sensitive analysis of steady state relative gain. Then, some two-point temperature control structures for azeotropic dividing wall column while several three-point (or four-point) temperature control structures for extractive dividing wall column were proposed in Aspen Dynamics. After adding dynamic disturbance,it chose the best one for each process: (1) best control structure for azeotropic dividing wall column:QMC/F control TMC,13,QRC/F control TRC,5,and (2) best control structure for extractive dividing wall column: RRM control TMC1,3,Qr/F control TMC1,12,RRR control TRC1,3,αv control TMC1,9. Finally,through the analysis of the similarity of the best control structures,it showed that the control structure with the ratio of reboiler duty and mixture feed rate (Qr/F) can achieve reasonable control performance,which reduced the overshoot of product purities and residual error of these two systerms.关键词
共沸物/分离/共沸精馏隔壁塔/萃取精馏隔壁塔/控制Key words
azeotrope/separation/azeotropic dividing wall column/extractive dividing wall column/control分类
化学化工引用本文复制引用
刘立新,陈梦琪,刘育良,王建新,孙兰义..共沸精馏隔壁塔与萃取精馏隔壁塔的控制研究[J].化工进展,2017,36(2):756-765,10.基金项目
山东省自然科学基金（ZR2013EEM024）及山东省高等学校科技计划（J14LA08）项目。 （）
