石油化工2024，Vol.53Issue(3)：330-338,9.DOI:10.3969/j.issn.1000-8144.2024.03.004
隔壁塔萃取精馏及共沸精馏分离异丙醇-水体系的模拟与优化
Simulation and optimization of isopropyl alcohol-water separation by extractive distillation and azeotropic distillation in dividing wall column
摘要
Abstract
Anhydrous isopropyl alcohol(IPA)was prepared by extractive distillation dividing wall column(EDWC)process and azeotropic distillation dividing wall column(ADWC)process,respectively.A two-tower equivalent model was established by Aspen Plus simulation software.The process parameters such as feed stage,entrainer amount,side-draw stage,side-draw amount and reflux ratio of the main column were optimized by sensitivity analysis,and the optimum parameters were determined according to the column design specifications.The simulation results show that compared with the conventional two-tower process,the heat load of the condenser and reboiler in the EDWC process is reduced by 32.38%and 12.39%,respectively,the equipment cost and the total annual cost is saved 29.34%and 4.87%,respectively.The heat load of the condenser and reboiler in the ADWC process is reduced by 29.57%and 23.41%,respectively,the equipment cost and the total annual cost is saved 16.87%and 22.41%,respectively.The ADWC for preparation of anhydrous IPA has obvious advantages in energy saving and equipment cost saving.关键词
异丙醇/隔壁塔/共沸精馏/萃取精馏Key words
isopropyl alcohol/dividing wall column/azeotropic distillation/extractive distillation分类
化学化工引用本文复制引用
邵圣娟,甄烁,蔡斌鑫,焦纬洲..隔壁塔萃取精馏及共沸精馏分离异丙醇-水体系的模拟与优化[J].石油化工,2024,53(3):330-338,9.基金项目
山西省高等学校大学生创新创业训练计划项目(S202314101139). （S202314101139）
