Pyrolysis of Polypropylene Plastic Waste into Liquid Fuel

Plastic is overused in every life application resulting in the accumulation of plastic waste that takes a long time to decompose. An alternative way of handling plastic waste today is to convert plastic waste into fuel oil or called plastic pyrolysis process. Pyrolysis is a chemical decomposition of organic matter through a process of heating without or little oxygen in which the raw material will break the chemical structure into a gas phase. One of the factors affecting the pyrolysis process is the heating temperature in the reactor. In this research, the design of the plastic waste pyrolysis tool using the thermal cracking method with a capacity of 500 grams using infrared heating element. The raw materials used are Polypropylene type plastic. The independent variables are temperature variations in the reactor, i.e., 250 degrees C, 300 degrees C, and 350 degrees C. The dependent variable is the mass of plastic waste, operating time, and operating pressure. From the research results, the higher the heating temperature in the reactor, the higher the % yield, density, specific gravity, and volume of liquid product produced. Conversely, the higher the temperature, the lower API Gravity, Heating Value, and Flash Point are