Krasnokutsky Y. Kinetic and Mass Transfer Regularities of Gas Emissions Conversion Processes in a Catalytic Converter

The object of study - the process of heterogeneous catalytic conversion of gas emissions. The aim of the thesis - the theoretical and experimental study of the kinetic and mass transfer processes of conversion of gas emissions and the scientific substantiation of the principles of development of the effective catalytic converter. Methods of research wich are used in the thesis: experimental methods of optical, raster electron and atomic force microscopy; hydrodynamic methods for determining of gas velocities and flow rates, gravimetric methods of control of harmful substances concentration; measuring and control equipment for temperature determination, qualitative and quantitative composition of mixed gas streams, methods of mathematical modeling and mathematical statistics with the use of mathematical packages MathCAD and GNU Octave, the basic principles of the theory of hydrodynamics, chemical kinetics, mass transfer and physical chemistry. Scientific novelty and practical value of the work lies in the fact that for the first time: - scientific basis for the method of forming the surface of erosion resistant glass ceramic films and catalytically active coatings layers on them with high heat resistance, mechanical strength and adhesion to high temperature alloys were developed; - it is proved that the transition temperature for the conversion process to the kinetic region from external diffusion depends on the process parameters heterogeneous catalytic conversion; - methodology for catalytic converter calculation is proposed; in accordance with proposed methodology the catalytic converter which provides an effective process for the conversion of gas emissions was designed and manufactured. Results of dissertation researches are implemented in NESC NASU (North-East Scientific Center of National Academy of Science of Ukraine), educational process on chairs “Computer-integrated technological process and production” and “Internal-combustion engine”.