Esterification of Acrylic Acid and n-Butanol in a Pilot-Scale Reactive Distillation Column-Experimental Investigation, Model Validation, and Process Analysis
Esterification of Acrylic Acid and n-Butanol in a Pilot-Scale Reactive Distillation Column-Experimental Investigation, Model Validation, and Process Analysis
复制标题
DOI：
10.1021/ie301934w
复制
发表时间：
2012-12-19
影响因子：
4.2
通讯作者：
Gorak, Andrzej
中科院分区：
文献类型：
--
作者：
Niesbach, Alexander;Fuhrmeister, Ron;Gorak, Andrzej
由于聚合的高风险和化学体系的复杂热力学行为，目前用于丙烯酸正丁酯合成的生产工艺是成本密集型的且具有挑战性。反应蒸馏将化学反应和蒸馏同时集成到一个单元中，是过程强化的最著名的例子之一。为了促进这一概念在丙烯酸正丁酯生产中的工业应用，需要可靠的实验数据。本文对反应蒸馏法合成丙烯酸正丁酯进行了实验和理论研究。在中试规模的反应精馏塔中进行了实验，并改变了决定性的操作参数。为了预测实验结果，应用非平衡级模型，并使用实验数据对模型进行验证。然后使用经验证的模型进行工艺分析，显示丙烯酸和正丁醇的转化率趋势以及丙烯酸正丁酯的纯度，可用于前瞻性优化研究。
Due to a high risk of polymerization and complex thermodynamic behavior of the chemical system, the current production process for n-butyl acrylate synthesis is cost-intensive and challenging. Reactive distillation integrates chemical reactions and distillation into one unit at the same time and is one of the best-known examples of process intensification. To facilitate industrial application of this concept for the production of n-butyl acrylate, reliable experimental data are required. This article presents an experimental and theoretical investigation of the synthesis of n-butyl acrylate using reactive distillation. Experiments were conducted in a pilot-scale reactive distillation column, and the decisive operational parameters were varied. To predict the experimental results, a nonequilibrium-stage model was applied and the model was validated using the experimental data. The validated model was then used to perform a process analysis, showing trends in the conversion of acrylic acid and n-butanol and the purity of n-butyl acrylate that can be used for prospective optimization studies.