Renewable energy from waste plastic: Hydroprocessing of mixed waste plastic to diesel fuel utilizing Fe/Mo-Al2O3 catalyst

The objective of this study is to present a novel method for converting plastic waste, particularly Polypropylene, Low-denstiy polyethylene, and High-Density Polyethylene, into diesel fuel. This study utilized Fe/Mo-Al2O3 bimetal catalysts to hydroprocess plastic waste and create diesel fuel. Although previous efforts had been made to hydroprocess these materials, this study is the first to employ a bimetallic catalyst and to analyze the physical and chemical attributes, compositional characteristics of diesel, and demonstrations with diesel engines. The fuel derived from Hydroprocessed Pyrolysis Oil- Blend (HPPO-B) met European Diesel Standards, and was found to be composed of iso-alkanes, n-alkanes, and aromatics, resulting in a 97 % correlation with diesel fuel. Moreover, HPPO-B fuel was found to have exhaust and combustibility properties similar to those of diesel fuel. The utilization of this method provides a potential solution for converting plastic waste into usable transportation fuels, hence reducing the amount of hazardous plastic waste in the environment. The findings of this study underscore the importance of the hydroprocess route as a means of safeguarding the environment from dangerous plastic solid waste (PSW). Given the potential for the production of fuels from PSW, the HPPO-B method offers promising possibilities for the sustainable disposal of plastic waste.