Utilization of PP Plastic Waste for Fuel Oil Production through Pyrolysis Process with Rice Husk Briquette Burning Gasification

The main energy used today is fossil energy which is decreasing and cannot be replaced. Meanwhile, the Indonesian people themselves are facing a problem as well as a great opportunity, namely, plastic waste and the potential of use rice husks, respectively. This study aimed to determine the most effective flame and most effective temperature for combustion in rice husk gasification, and to determine the temperature in the distillation reactor, and then to determine the mass of oil produced from the pyrolysis process and determine the quality of PP (polypropylene) plastic pyrolysis oil. The method used was direct experiment. The test was carried out using two furnaces and was carried out in parallel six times. The results showed that the gasification of rice husk briquettes could be a source of combustion in the pyrolysis process. The time used in the pyrolysis process was 260 min while the average flame duration in the furnace over six test was 43.33 min. The average flame temperature over the six periods of combustion was 733.89 °C. Additionally, the average temperature at the bottom of the reactor was 593.564 °C, and the average temperature in the reactor chamber was 143.319 °C. This process was categorized as low-temperature pyrolysis. The mass produced from 3000 g of shredded PP (polypropylene) plastic waste produces 1.29 L of fuel oil. It is of note that the quality of plastic pyrolysis oil is not greatly different from kerosene, with a thermal efficiency of 38.60%.