Design and optimization of batch reactive distillation processes with off-cut

作者：Kao Yu Lung; Ward Jeffrey D^*

来源：Journal of the Taiwan Institute of Chemical Engineers, 2014, 45(2): 411-420.

DOI：10.1016/j.jtice.2013.05.018

• Batch
• Design
• Distillation
• Off-cut
• Optimization
• Reactive

Although off-cut is commonly applied in non-reactive batch distillation, reports of the application of off-cut for batch reactive distillation (BREAD) are quite rare. In order to systematically investigate the use of off-cut in BREAD systems, we develop the optimal BREAD process design with and without off-cut for a canonical set of hypothetical reaction systems and a process for the hydration of methyl lactate. The results show that using off-cut can significantly improve performance, especially when both reactants have boiling points between those of the two products (for a quaternary system), when the product purity specification is high, and when the reaction equilibrium constant is low. The optimal batch recipe including off-cut can also be understood based on the normal boiling point ranking of the reactants and products.

• 出版日期2014-3