Developing Energy-Efficient Technologies for Obtaining Organic Substances Based on a Comprehensive Study of the Reaction and Separation Constituents

摘要

This paper presents an analysis of the literature on the complex study of the reaction and separation constituents of technologies for obtaining industrial organic products: cyclohexanone, epichlorohydride, isopropylbenzene, glycols, and methyl isobutyl ketone. Ways that make it possible to reduce energy consumption by replacing solvents or changing the reaction conditions and combining different design variants of both blocks are shown. The dependence of the energy consumption of the separation flowsheet on the operating conditions of the reactor unit is shown using the example of a mixture of methyl isobutyl ketone. The structure of the diagram of an eight-component system is studied and thermodynamic restrictions on the distillation process are determined. The distillation process is calculated (for a separation flowsheet of a fixed structure) for four compositions of the initial mixture (obtained under different operating conditions of the reactor), and the parameters of the column work making it possible to obtain commercial quality products and corresponding to minimal energy consumption are determined.