郭义敏,邹昀,张秀钰,乔颖,童张法

• 1:广西大学化学化工学院
• 2:广西石化资源加工及过程强化技术重点实验室

摘要(Abstract)：

汽液平衡数据对于共沸物分离具有十分重要的地位，为了解决乙酸+异丙醇酯化反应体系中的共沸物分离的问题，采用Dvorak-Boublik平衡釜测定了乙酸+异丙醇+乙酸异丙酯、乙酸+异丙醇+水、乙酸+乙酸异丙酯+水、异丙醇+乙酸异丙酯+水4个三元体系的汽液平衡数据，对实验数据进行热力学一致性检验和NRTL(nonrandomtwo-liquid)模型关联。通过残留曲线图分析了共沸体系分离的可行性，利用Aspen Plus对异丙醇+乙酸异丙酯+水体系进行萃取精馏工艺模拟和优化。结果表明，分离得到乙酸异丙酯质量分数≥98%，异丙醇质量分数≥99%，研究结果不仅补充了部分乙酸+异丙醇酯化反应体系的三元汽液平衡数据，也为体系的共沸物分离提供理论依据。

关键词(KeyWords)： 酯化体系;共沸;汽液平衡;残留曲线;萃取精馏

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金(2017GXNSFDA198047);; 广西石化资源加工及过程强化技术重点实验室主任基金(2021Z013)

作者(Author): 郭义敏,邹昀,张秀钰,乔颖,童张法

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