Abstract

Due to its low toxicity, ethyl acetate is a popular solvent in the food and medical industries. The traditional way of producing ethyl acetate is the ethanol esterification of acetic acid in the presence of sulfuric acid or cation exchangers. An alternative modern way of producing ethyl acetate is ethanol dehydrogenation on a heterogeneous catalyst, which can be done in a classical version or in combination with rectification. For any version of the process, it is important to test a heterogeneous catalyst to ensure long-term stable operation. Industrial catalyst NTK-4 is therefore tested in this work under conditions of long-term operation on a pilot plant. Stable operation of the catalyst is observed without loss of activity for 1250 h. The indicators of the process and the compositions of the reaction mixture upon changing the installation’s mode of operation are given.

中文翻译：

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由乙醇生产乙酸乙酯的催化剂的中试

摘要

由于其低毒性，乙酸乙酯是食品和医疗行业中的常用溶剂。生产乙酸乙酯的传统方法是在硫酸或阳离子交换剂的存在下，乙酸对乙醇进行酯化。生产乙酸乙酯的另一种现代方式是在多相催化剂上进行乙醇脱氢，这可以以经典方式进行，也可以与精馏结合进行。对于该方法的任何版本，测试非均相催化剂以确保长期稳定运行都是很重要的。因此，在这项工作中，工业催化剂NTK-4在中试装置的长期运行条件下进行了测试。观察到催化剂稳定运行1250小时，活性没有损失。