Pyrolysis of Waste Polyolefins into Liquid Petrochemicals Using Metal Carbonate Catalyst
Abstract
Currently, demand of liquid hydrocarbons is continuously growing because of the uncertain supply of fossil fuels. The current advanced technology will contribute to our societies (Swachh Bharat Mission) because the aim of the research is to provide alternative energy, and it will minimize waste plastics. The liquid petrochemicals were obtained from sustainable waste polyolefins. TGA (Thermogravimetric analysis) was analyzed to find the thermal stability of all polyolefins wastes. The pyrolysis process was started at 22 ₒC and then completed at 390 25 ₒC. Recoveries as liquids, gases, and residues obtained from 16 gm LD-PE (Low-density polyethylene), 64 gm HD-PE and 15 gm PP (Polypropylene) plastic waste polyolefins with 5 gm MgCO3. Their conversions were as waste polyolefins or LD-PE, HD-PE (High-density polyethylene), and PP plastics, whose conversion rate in liquid petrochemicals was 92 %, light gases 7.52 %, and residue 0.48 %. Aliphatic, aromatics; alcohol, acetate; and aster hydrocarbons were observed in liquid petrochemicals through FT-IR and GC-MS-MS. The alternative fractions recovery from waste plastic materials was excellent. Liquid hydrocarbons could use for petrochemical industries as a raw materials, in automobiles as an alternative fuel, diesel furnace.
