| dc.description.abstract | Pyrolysis has been proven as a method to reduce plastic waste and produce useful products,
especially liquid fuels. However, plastic pyrolysis also produces gases and char as by-products
which are being investigated for useful products. Therefore, our present study aims to investigate
the char characteristics of plastic pyrolysis for further use as briquettes. Seven samples of char by-
products from the pyrolysis process of low-density polyethylene (LDPE) plastic at various reaction
temperatures and catalyst types were studied. The proximate test is used to determine the
properties of char such as moisture content, ash, volatile matter, and fixed carbon while the bomb
calorimeter is used to determine the calorific value. Briquettes are formed by mixing 4 grams of
char and 0.5-1 gram of binder (1% starch and 90% water). The briquettes were formed into solid
cylinders with a diameter of 1.75 cm and formed with a pressure of 10 kg/cm2. Furthermore, the
impact resistance index (IRI) was used to test the performance of the briquettes and showed an IRI
value between 100 and 200. However, of the seven char samples tested, three of them were
impossible to process into briquettes because they melted during the combustion test | en_US |
