Dzevochko A. «Improving the efficiency of the sulfation process in a tubular film reactor in the production of surfactants»

The object of research is the process of sulfation of mixtures of organic substances with gaseous sulfur trioxide in a tubular film reactor in the production of surfactants. The aim of the dissertation is to increase the efficiency of the sulfation process in a tubular film reactor in the production of surfactants by improving the hardware and technological scheme. The paper presents a theoretical generalization and solution of an important scientific and practical problem. Theoretical studies of the basic laws of the sulfation process based on theories of heat and mass transfer, hydrodynamics; chemical analyzes were performed according to standard methods; the density of sulfation products was measured with a densimeter with an accuracy class of 1.0, and their viscosity was measured with a viscometer with an accuracy class of 1.5; processing of experimental data was carried out using computer technology and methods of mathematical statistics. In order to study the optimal parameters and modes of operation of the reactor, properties and processes, it used the method of mathematical modeling. The scientific novelty of the obtained results is as follows: for the first time the dependence of the degree of sulfation and chromaticity of the obtained products on the main technological parameters during sulfation of three-component mixtures of organic substances was established, which allowed to obtain initial data for tubular film reactor development; for the first time a systematic analysis of the processes of mass transfer, absorption with the passage of an exothermic chemical reaction and heat transfer by the method of mathematical modeling, which made it possible to substantiate the design characteristics of a tubular film reactor; for the first time the possibility of carrying out the process of sulfation of three-component mixtures of organic substances in a tubular film reactor with a descending flow of phases to obtain high-quality surfactants and increase the efficiency of the process; improved mathematical model of the process of sulfation of three-component mixtures of organic substances in a tubular film reactor with a downward flow of phases, which became the basis for its calculation; established and scientifically substantiated values of technological parameters of the sulfation process in a tubular film reactor, which allowed to solve the problem of energy and resource conservation. Degree of implementation: The obtained scientific results were transferred to the State Institution "Research and Design Institute of Basic Chemistry" (Kharkov) for use in improving the production of surfactants and PE "PRESTIGE LINE" for use in developing a project for the production of foaming compounds (m Kharkiv). The materials of the dissertation were used in the educational process of the Department of Automation of Technological Systems and Environmental Monitoring of the National Technical University "Kharkiv Polytechnic Institute" in the courses of lectures "Technological systems and complexes", "Computer modeling of processes and systems", "Environmental and energy saving systems". also when performing bachelor's and master's qualification works. Sphere of use: chemical and petrochemical industry.