常压反应-减压精馏集成生产甲酸环己酯的过程模拟Process Simulation of Cyclohexyl Formate Production with an Atmospheric Reaction-Vacuum Distillation Integrated System
王振松,许戈,汤吉海,李云鹏,陈献,崔咪芬,费兆阳,乔旭
摘要(Abstract):
采用"背包式"反应精馏集成方式(DCSR),建立了甲酸和环己烯加成生产甲酸环己酯的常压反应-减压精馏新型集成工艺,反应温度与精馏温度可以独立控制,避免了甲酸在温度超过60°C时发生分解副反应。通过模拟考察了催化剂装填量、反应器台数、塔底再沸热负荷、提馏段塔板数等参数对合成甲酸环己酯的DCSR过程的影响。结果表明,在甲酸与环己烯进料流率分别为10 mol×h~(-1)下,加成酯化生产甲酸环己酯的适宜DCSR过程参数为:侧反应器台数为2台、精馏塔板数为7块板(不包含塔顶冷凝器)、塔底再沸功率为130 W、催化剂装填总量为0.6 kg、精馏塔的操作压力为10 k Pa,在反应能力与分离能力达到最优匹配时,DCSR过程的催化剂用量仅为传统反应精馏过程的30%,提高了催化剂效率,降低了设备和生产成本。
关键词(KeyWords): 反应精馏;甲酸环己酯;过程集成;加成反应
基金项目(Foundation): 国家自然科学基金项目(21276126,61203020);; 江苏省“六大人才高峰”项目(2015-XCL-017)
作者(Author): 王振松,许戈,汤吉海,李云鹏,陈献,崔咪芬,费兆阳,乔旭
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