Abstract
The synthesis and purification of ethyl acrylate are of great importance in studying the coupling performance of reaction and separation. In this manuscript, reactive extractive distillation (RED), immiscible-assisted reactive extractive distillation (IRED), and high conversion rate process (HCP) were comprehensively studied. The conceptual design by quaternary phase diagram was demonstrated. The optimal extractant was selected based on relative volatility and quantum chemistry. Multi-objective algorithm was used to minimize gas emissions and total annual cost (TAC). Based on economic, environmental and profit etc., the RED, IRED, and HCP were evaluated. The results show that the TAC, gas emissions, exergy loss, energy consumption, and profit of IRED were decreased by more than 25 %, 21 %, 12 %, 14 %, and 26 % compared to RED. Besides, the profit of the IRED is better than that of the HCP, which indicates that higher conversion rate of the reaction cannot represent better economy of the reactive distillation process.
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