The Investigation of Purity Improvement for the Production of Methyl Propionate in Different Types of Batch Distillation Systems
Methyl propionate, also known as methyl propanoate, is a clear colourless liquid with a characteristic odour (fruity smell and taste). In this study, the formation of methyl propionate through the esterification of propionic acid and methanol was investigated in the reactive distillation system using a conventional (CBD), single feed (SF-SBD), and double feed semi-batch distillation (DF-SBD) columns for the first time. The performances measure of these distillation systems were evaluated in terms of minimum batch time for a given separation task. The optimization results clearly showed that the DF-SBD system is a more attractive operation in terms of reaction conversion, and maximum achievable purity as compared to the SF-SBD, and CBD processes.
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