萃取精馏分离三甲氧基硅烷和甲醇的模拟和优化

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运用AspenPlus对萃取精馏分离三甲氧基硅烷和甲醇进行了模拟研究。采用芳烃作溶剂,通过和传统的对二甲苯溶剂对比,发现异丙苯和均三甲苯作溶剂具有很好的节能效果,且均三甲苯效果十分显著。在均三甲苯作溶剂的基础上,分析了溶剂比、塔板数、进料位置、回流比等条件对分离效果的影响,并对参数进行优化。确定了最优的操作条件为萃取精馏塔共24块理论板,混合物进料位置为第15块塔板,溶剂进料位置为第11块板,溶剂比为0.4,回流比为O.6。溶剂回收塔共12块理论板,进料位置为第5块塔板,回流比为2.3。在此条件下,三甲氧
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