Madatov A. Advancing of coal pyrilysis technology with high-molecular substances addition

Dissertation is dedicated to development of scientific and technological base of waste plastic utilization as a component coal charge as well as requirements specification, technical and economic assessment, benchmark data for design of industrial introduction of waste plastic utilization. Scientifically based criteria of influence of waste plastic addition onto coke output and quality were developed as well as regime and hardware for preparation process. Investigation of individual and mixtures of plastics proved existence of chemical mechanism of plastics action onto coking creation, which is lies in that, what PS and PETF combine into thermostable aromatic pyrolysis products, but PE and PP - not. Investigation of coal plastic mass viscosity with waste plastics addition discovered, that PS and PETF decrease viscosity by means of non-volatile liquid components quantity increase, but PE and PP increase viscosity by means of non-volatile liquid components chemical cure. Chemical interaction between waste plastic components at 300-350 °C allows to compensate negative influence PE and PP due to PS and PETF. So that, previous treatment of waste plastic mixture allows add 3% and more to coal charge without harm for coke quality. Result of laboratory and industrial coking of charge with waste plastics showed, that quality of coking products is acceptable. Experimental investigation found, that chemical and physical interaction of waste plastic with coal lead to increase of its brittle properties up to level, when it is possible to use standard equipment for shredding of it.