COPYROLYSIS OF WASTE MASK AND FOOD PLASTIC CONTAINER FOR BIO-OIL PRODUCTION

• Main Author: Bintoro, Luis
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/76410
• Institution: Institut Teknologi Bandung

The amount of plastic waste increases from year to year due to low recycling and an increase in the human population. The waste of masks and plastic during the COVID-19 pandemic has made it difficult for waste to decompose in Indonesia to grow. The majority of mask and plastic waste contains hydrocarbon compounds made from petroleum, so it is necessary to utilize this waste as a substitute for petroleum-based fuels or other intermediate chemical products. One way to utilize and treat mask and plastic waste is pyrolysis. Therefore, pyrolysis research was carried out to determine the effect of variations in feed, temperature, and nitrogen-oxygen gas rates on the yield and characteristics of pyrolysis oil and to determine the fractions of oil product compounds. The research used mask bait, HDPE, LDPE, and PP which did not contain impurities and water content and a mixture of HDPE mask bait, LDPE mask, and PP mask. The temperatures used as experimental variations were 400 oC, 450 oC, 500 oC and 550 oC at atmospheric pressure to get the temperature that produced the greatest yield. The gases used are nitrogen (N2) and oxygen (O2). The reactor used is a batch type, namely a fixed bed pyrolyzer. Pyrolysis results showed the highest oil yield at 400 oC was mask (54.22%), 450 oC for HDPE (63.62%), 500 oC for PP (71.94%), and 550 oC for PP (62.61%). At various temperatures, the highest yield of mask oil, HDPE, and PP was at 500 oC of 65.33%; 69.51%; 71.94% and LDPE at 450 oC of 58.57%. At a gas variation of 500 oC, an increase in oil yield occurred in the feed mask, LDPE, LDPE-mask, and PP-mask, while a decrease occurred in the feed PP, HDPE, and HDPE-mask. The highest oil calorific value is produced by HDPE feed with 10% oxygen gas rate, valued at 47.8 MJ/kg. In addition, the water content in mask pyrolysis oil, HDPE, LDPE, and PP is below 1%. The largest oil carbon content is in 500 oC PP pyrolysis of 96.31%. MSK500 oil has potential as avtur and HDPE500, LDPE500, PP500, and N90HDPE500 as diesel.