Prospective review for development of sustainable catalyst and absorbents from biomass and application on plastic waste pyrolysis

There is a huge rise in the demand of plastics; as a result, plastic waste gets accumulated by improper disposal methods and degrades the living environment. Despite recycling of plastic waste, majority of it ends up in landfills, disposed in oceans and rivers. More researches are looking at better solution and development of integrated plan to handle plastic waste. The current review aims to detail the routes of plastic waste management, through thermal, catalytic and microwave pyrolysis. The effect of operating parameters such as temperature, time, types of feedstocks and product yield is discussed under thermal pyrolysis. The urge to develop a sustainable catalyst incorporating acid sites, enhanced catalytic activity and resistive to coke development was more focussed in this study. In microwave pyrolysis, the use of biomass as absorbents and the challenges faced during microwave pyrolysis are deeply reviewed in this article.