Pyrolysis of polypropylene waste with natural zeolite as catalyst

Abstract

Putri Cempo Landfill located in Surakarta, Central Java, Indonesia is one of landfills that have not been equipped with appropriate waste management. Scavengers will sort out the garbage and collect it to garbage collectors. Bottle cap was used as the sample of pyrolysis of polypropylene. Our research investigated various temperatures and ratios of raw material to catalyst variation and standard diesel fuel. One hundred grams of caps was inputted to the reactor. Temperature was controlled by thermocouple with variation of temperature of 400, 410, 420, and 430°C. Every 20 minutes, bio-oil as the liquid product was collected to the storage. Noncondensable gas was stored in three gallons. The amount of water flow from the gallons was assumed as the volume of the gas. Gas pressure was controlled by open manometer while temperature by thermocouple. Every 20 minutes, the mass of the gas was measured. Solid residue was measured after 120 minutes. At the temperatures of 430°C and 410°C, the highest liquid yields and the highest gas yield were obtained, of 55.74% and 49.10%, respectively. From the ratios of raw material to catalyst of 66:33; 75:23; 80:20; and 83:17 wt%, the highest liquid yield of 72.17% was identified in the ratio of 66:33% wt% while the highest gas yield was 36.43. Our research found no residue solid. The dominant chemical component was C13H28O. Bio-oil was analyzed with specification, such as specific gravity, API gravity, gross heating value, flash point, pour point, and kinematic viscosity and found that it is feasible as diesel fuel based on the Decree of the Directorate General of Oil and Gas of 2008.Putri Cempo Landfill located in Surakarta, Central Java, Indonesia is one of landfills that have not been equipped with appropriate waste management. Scavengers will sort out the garbage and collect it to garbage collectors. Bottle cap was used as the sample of pyrolysis of polypropylene. Our research investigated various temperatures and ratios of raw material to catalyst variation and standard diesel fuel. One hundred grams of caps was inputted to the reactor. Temperature was controlled by thermocouple with variation of temperature of 400, 410, 420, and 430°C. Every 20 minutes, bio-oil as the liquid product was collected to the storage. Noncondensable gas was stored in three gallons. The amount of water flow from the gallons was assumed as the volume of the gas. Gas pressure was controlled by open manometer while temperature by thermocouple. Every 20 minutes, the mass of the gas was measured. Solid residue was measured after 120 minutes. At the temperatures of 430°C and 410°C, the highest liquid yields ...