Processing Plastic Waste HDPE and PP on Pyrolysis Temperature Using Cu-Al 2 O 3 Catalyst Into an Alternative Liquid Fuel

Abstract

The crisis of energy reserves in Indonesia, especially in petroleum and high plastic waste usage, causes a very worrying problem in Indonesia. One way to overcome this problem is to process plastic waste into alternative liquid fuels. This study aims to determine the effect of temperature and the effect of HDPE and PP plastic waste composition on the pyrolysis process using Cu-Al2O3 catalysts, as well as to determine the characteristics of the liquid fuel produced, namely density, flash point, heating value, viscosity and hydrocarbon compound content. This research was conducted by pyrolysis method at temperature of 250 o C, 300 o C, 350 o C, and 400 o C and mixtures of HDPE and PP plastic types of 0:100, 30:70, 50:50, 70:30, and 100:0. Liquid fuels approaching the standard premium type fuel is a mixture of HDPE:PP plastic types with a ratio of 50:50 at a temperature of 300 o C with a viscosity of 1.1872 mm 2 /s, calorific value of 10213.0953 cal/gr, density of 0.7880 gr/ml, flash point 32,7°C and GC-MS results show the content of hydrocarbon with a value of C9-C16.