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摘要
采用辅助化学反应强化反应精馏生产乙酸乙酯,通过环氧乙烷与水的反应将体系中的水除去,使得产品质量分数大大提高,同时由于环氧乙烷开环反应放出大量的热减小了能耗。通过采用Aspen Plus软件模拟了辅助化学反应强化反应精馏生产乙酸乙酯的过程并对相应的操作参数加以优化,得到了质量分数为99.3%的乙酸乙酯,同时在塔底得到了质量分数为96%的乙二醇,生产过程的能耗为366 kW。
Abstract
The auxiliary chemical reaction is used to intensify the reactive distillation in the production of ethyl acetate,and water in the system is removed through the reaction between ethylene oxide and water,which improves the purity of product greatly and reduces the energy consumption due to that the ring cleavage reaction of ethylene oxide releases a plenty of heat.The process using auxiliary chemical reaction to intensify the reactive distillation in the production of ethyl acetate is simulated by Aspen Plus software and the corresponding operating parameters are optimized.The ethyl acetate produced has a mass fraction of 99.3%.At the same time,ethylene glycol with a mass fraction of 96% is obtained at the bottom of the column.The energy consumption of production process is 366 kW.
关键词
辅助化学反应
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纯度
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强化
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乙酸乙酯
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反应精馏
Key words
auxiliary chemical reaction
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purity
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intensify
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ethyl acetate
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reactive distillation
Author summay
辅助化学反应强化反应精馏生产乙酸乙酯并联产乙二醇的模拟与优化[J].
现代化工, 2017, 37(10): 193-196 DOI:10.16606/j.cnki.issn0253-4320.2017.10.046