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Ethylene Glycol Recovery from 2-Ethyl-1,3-dioxolane Hydrolysis via Reactive Distillation: Pilot-Scale Experiments and Process Analysis
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-11-01 , DOI: 10.1021/acs.iecr.9b04420 Xingang Li 1 , Rui Wang 1 , Yutao Yan 1 , Runnan Zhao 1 , Hong Li 1 , Xin Gao 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-11-01 , DOI: 10.1021/acs.iecr.9b04420 Xingang Li 1 , Rui Wang 1 , Yutao Yan 1 , Runnan Zhao 1 , Hong Li 1 , Xin Gao 1
Affiliation
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EG is an important industrial raw material, and the hydrolysis of 2-ethyl-1,3-dioxolane (2ED) to re-obtain EG is a very important step to recover EG from an EG and 1,2-BDO azeotropic mixture via a reversible-reaction-assisted intensification process. The applicability of reactive distillation for 2ED hydrolysis in the presence of KRD-002 ion exchange is studied by experiments and simulations. The reaction kinetics were investigated, and the kinetic parameters were derived. Thermodynamic aspects of the reaction system were discussed, and the NRTL model was built. Pilot-plant reactive distillation experiments were performed using the structured catalytic packing unit (SCPI) with several operating condition variations (reflux ratio (RR), feed mole ratio (FMR), and feed-in style). The experimental results are in good agreement with the simulation results, which prove that the equilibrium stage model can describe the hydrolysis experiments quantitatively. The simulation was subsequently used to determine the influence of important design factors and laid the foundation for industrial application.
中文翻译：
通过反应蒸馏从2-乙基-1,3-二氧戊环水解中回收乙二醇：中试和工艺分析
EG是重要的工业原料，水解2-乙基-1,3-二氧戊环（2ED）以重新获得EG是从EG和1,2-BDO共沸混合物中通过EG回收EG的非常重要的步骤。可逆反应辅助的强化过程。通过实验和模拟研究了在KRD-002离子交换存在下反应蒸馏在2ED水解中的适用性。研究了反应动力学，并推导了动力学参数。讨论了反应系统的热力学方面，并建立了NRTL模型。使用结构化催化填充单元（SCPI）进行中试反应性蒸馏实验，该结构具有几种运行条件变化（回流比（RR），进料摩尔比（FMR）和进料方式）。实验结果与模拟结果吻合良好，证明了平衡阶段模型可以定量描述水解实验。仿真随后被用于确定重要设计因素的影响，并为工业应用奠定了基础。
更新日期：2019-11-01
中文翻译：
通过反应蒸馏从2-乙基-1,3-二氧戊环水解中回收乙二醇：中试和工艺分析
EG是重要的工业原料，水解2-乙基-1,3-二氧戊环（2ED）以重新获得EG是从EG和1,2-BDO共沸混合物中通过EG回收EG的非常重要的步骤。可逆反应辅助的强化过程。通过实验和模拟研究了在KRD-002离子交换存在下反应蒸馏在2ED水解中的适用性。研究了反应动力学，并推导了动力学参数。讨论了反应系统的热力学方面，并建立了NRTL模型。使用结构化催化填充单元（SCPI）进行中试反应性蒸馏实验，该结构具有几种运行条件变化（回流比（RR），进料摩尔比（FMR）和进料方式）。实验结果与模拟结果吻合良好，证明了平衡阶段模型可以定量描述水解实验。仿真随后被用于确定重要设计因素的影响，并为工业应用奠定了基础。
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