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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Simulation and optimization of reactive distillation for the production of ethyl acetate using [BMIM]HSO4 as catalyst
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Simulation and optimization of reactive distillation for the production of ethyl acetate using [BMIM]HSO4 as catalyst

机译：用[BMIM] HSO4作为催化剂的乙酸乙酯生产反应蒸馏的模拟与优化

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This study explicates the preparation of ethyl acetate (EtOAc) via esterification of acetic acid and ethanol overbronsted acid ionic liquid (l-Butyl-3-methylimidazolium hydrogen sulfate, [BMIM]HSO4) as catalyst. The ideal homogeneous (IH) and non-ideal homogeneous (NIH) models were applied to describe reaction kinetics and the model parameters were obtained by data fitting, where NIH model showed higher accuracy and confirmed the higher catalytic efficiency of [BMIM]HSO4 than Amberlyst 15. A novel reactive distillation (RD) flow-sheet for EtOAc production using [BMIM]HSO4 was designed and performed by Aspen Plus, in which the obtained reaction kinetic equations were formulated in the setting module of RADFRAC block. The optimal conditions of catalyst dosage, plate number, feed position, feed molar ratio, liquid holdup and reflux ratio for RD process were obtained by taking the EtOAc concentration in product stream as objective function and was found with maximum content of 90.44 wt.% with less than 3 % deviation. Keeping the high yield and simple mechanization, this approach can provide a feasible RD process design for EtOAc production using [BMIM]HSO4 as high-activity catalyst and can be envisaged as an alternative route for the industrial production of EtOAc. (C) 2020 Published by Elsevier B.V. on behalf of Institution of Chemical Engineers.
机译：该研究通过乙酸和乙醇横向酸离子液（L-丁基-3-甲基咪唑硫酸氢硫酸盐，催化剂为催化剂，分析乙酸乙酯（EtOAc）的制备。应用理想的均匀（IH）和非理想的均​​匀（NIH）模型来描述反应动力学，通过数据配件获得模型参数，其中NIH模型表现出更高的精度并确认了[Bmim] HSO4的催化效率高于Amberlys 15.使用[BMIM] HSO 4设计并通过Aspen Plus进行EtOAc产生的新型反应蒸馏（RD）流量片，其中在Radfrac块的设定模块中配制了所得的反应动力学方程。通过将产物流中的EtOAc浓度作为目标函数，获得RD工艺的催化剂剂量，板数，进料位置，进料摩尔比，液体保持和回流比的最佳条件，并被发现最大含量为90.44重量％。％偏差小于3％。保持高产量和简单的机械化，这种方法可以使用[BMIM] HSO4作为高活性催化剂提供一种可行的RD工艺设计，以作为高活性催化剂，可以设想作为EtOAc工业生产的替代路线。 （c）由elsevier b.v发表的2020年代代表化学工程师机构。

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