폐플라스틱 열분해 공정에 의한 공정가스 및 배출가스의 성상 분석에 관한 연구

A study on the characteristics of process and emission gas by waste plastic pyrolysis processes

The use of plastics is increasing every year due to their excellent properties and convenience, and the production and use of disposable plastics, especially for delivery and packaging containers, has increased due to the COVID—19 pandemic. This increase in usage has led to an increase in waste plastics, which has led to a sharp increase in social interest in useful recycling rather than incineration and landfill, and a need for appropriate disposal. Pyrolysis process technology, one of the chemical recycling methods, is a process technology that reductively decomposes waste plastics at medium to high temperatures between 400°C and 600°C under oxygen-free conditions to break the carbon chains of high molecular compounds and decompose them into low molecular compounds to produce oil and gas. Pyrolysis facilities using domestic waste plastics are either continuous or batch type, and it is necessary to evaluate the environmental performance by qualitatively analyzing the process gas and emission gas generated according to the various operating conditions of each facility. Therefore, this study aims to evaluate the environmental performance of waste plastic pyrolysis process technology and discuss the direction of waste plastic pyrolysis process technology.