摘要
为了解决传统甲基丙烯酸丁酯间歇生产工艺产率低且产物分离困难的问题,基于钛酸四丁酯催化反应动力学和热力学数据,设计甲基丙烯酸丁酯反应精馏生产工艺。通过单因素分析优化确定最优操作条件,得到甲基丙烯酸甲酯转化率99.12%,单位产品能耗为813.71 kJ/kg的结果。为了进一步降低过程能耗,采用隔壁塔节能技术进行工艺集成,建立反应精馏隔壁塔工艺流程。通过对2种工艺进行详细对比,结果表明,反应精馏隔壁塔生产甲基丙烯酸丁酯过程中能耗降低17.0%,具有显著节能优势,为后续工艺放大提供指导。
In order to address the low yield and difficult products separation issues in the conventional butyl methacrylate(BMA)batch production process,a reactive distillation process for BMA is designed according to the kinetics and thermodynamic data of the catalytic reaction over tetrabutyl titanate.Furthermore,the optimal operation conditions are determined through single factor analysis,under which the conversion rate of methyl methacrylate is 99.12%,and the unit energy consumption is 813.71 kJ/kg.Aiming to reduce the energy consumption again,the dividing wall energy conservation technology is employed to conduct process integration,and a reactive distillation dividing wall process is established.Through comparing these two processes,it is found that the reactive distillation dividing wall process performs better with a energy saving rate about 17.0%in BMA production,presenting a significant advantage,which can provide theoretical guidance for subsequent process scaling up.
作者
陈自浩
韩春瑞
张博宇
刘恒
孙富伟
靳凤英
CHEN Zi-hao;HAN Chun-rui;ZHANG Bo-yu;LIU Heng;SUN Fu-wei;JIN Feng-ying(CNOOC Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China;China Kunlun Contracting&Engineering Corporation,Beijing 100037,China)
出处
《现代化工》
北大核心
2025年第9期218-222,228,共6页
Modern Chemical Industry
基金
中国海洋石油集团有限公司科技项目(CNOOC-KJ 145 ZDXM 12 TJY 015 TJY 2021)。
关键词
甲基丙烯酸丁酯
反应精馏
反应精馏隔壁塔
节能
单因素分析
butyl methacrylate
reactive distillation
reactive distillation dividing wall column
energy conservation
single factor analysis
