Reactive distillation configuration for the production of ethyl acrylate

IF 3.8 3区工程技术 Q3 ENERGY & FUELS Chemical Engineering and Processing - Process Intensification Pub Date : 2024-06-22 DOI:10.1016/j.cep.2024.109864

Jayram I. Gore , Sanjay M. Mahajani , Nilesh A. Mali

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Abstract

Esters of acrylic acid have many industrial applications, but existing industrial processes are not economical. Ethyl acrylate, a precursor to polymers and other chemicals is one of them. The existing method of production of ethyl acrylate by esterification of acrylic acid with ethanol using a homogeneous catalyst and reactor-distillation combination has limitation in terms of product purity, corrosion and existence of possible side reactions. The present work proposes a novel reactive distillation (RD) column configuration for ethyl acrylate production, with 99.99 % acrylic acid conversion and 99.99 % ethyl acrylate purity with no effluent stream. The proposed configuration is analyzed using Aspen Plus steady-state simulation software. Sequential iterative sensitivity analysis is performed to obtain all structural and operating parameters leading to a minimum Total Annual Cost (TAC). The result shows that, there is 10.8 % improvement in the purity of aqueous stream using RD configuration compared to existing method and the overall TAC of the process at desired conditions is 87.77 × 10³ $/year.

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生产丙烯酸乙酯的反应蒸馏配置

丙烯酸酯有许多工业用途，但现有的工业工艺并不经济。丙烯酸乙酯是聚合物和其他化学品的前体，也是其中之一。使用均相催化剂和反应器-蒸馏组合，通过丙烯酸与乙醇的酯化反应生产丙烯酸乙酯的现有方法在产品纯度、腐蚀和可能的副反应方面存在局限性。本研究提出了一种新型反应蒸馏（RD）塔配置，用于生产丙烯酸乙酯，丙烯酸转化率达 99.99%，丙烯酸乙酯纯度达 99.99%，且无废液流出。使用 Aspen Plus 稳态模拟软件对拟议配置进行了分析。进行了连续迭代敏感性分析，以获得所有结构和运行参数，从而实现最低年度总成本 (TAC)。结果表明，与现有方法相比，采用 RD 配置的水流纯度提高了 10.8%，在理想条件下，该工艺的总 TAC 为 87.77 × 103 美元/年。

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来源期刊

Chemical Engineering and Processing - Process Intensification 工程技术-工程：化工

CiteScore

7.80

自引率

9.30%

发文量

408

审稿时长

49 days

期刊介绍： Chemical Engineering and Processing: Process Intensification is intended for practicing researchers in industry and academia, working in the field of Process Engineering and related to the subject of Process Intensification.Articles published in the Journal demonstrate how novel discoveries, developments and theories in the field of Process Engineering and in particular Process Intensification may be used for analysis and design of innovative equipment and processing methods with substantially improved sustainability, efficiency and environmental performance.