Pyrolysis as a value added method for plastic waste management: A review on converting LDPE and HDPE waste into fuel

The global demand for plastic is increasing year by due to its indispensable uses and excellent properties. Plastic wastes persist many years their slow deterioration cause severe environmental problems. Therefore, there a growing focus worldwide on waste disposal methods overcome adverse impacts. As plastics are petroleum-based materials, the pyrolysis of fuel oil, gases, char, has more concern than other management recycling landfilling. A yield 70-80 wt.% liquid from been reported elsewhere, emerging importance aptness this method in management. common reactor types process batch reactor, semi-batch spouted bed fluidized reactor. catalysts employed were zeolites, including ZSM-5, HUSY, Zeolite X, Y. pore structure catalyst’s acidity most influencing parameters quality oil produced process. This paper reviews existing literature processes developed HDPE LDPE globally governing factors. Furthermore, emissions engine combustion performance, emission characteristics discussed. Although separation prior challenging process, review highlights conversion into energy as smart way meet rising demands.