Tandem dechlorination and hydrogenolysis of waste PVC plastic into value added chemicals

Abstract

Plastic waste is a serious problem with detrimental environmental impacts, within this mixed plastics pose a significant challenge in depolymerization. My project focuses on polyvinyl chloride (PVC), a particularly difficult plastic to break down due to the chlorine atom. Chlorine can poison catalysts and release harmful by products like hydrochloric acid or chlorine gas. I have been working to dechlorinate PVC and then further break down this waste plastic to form value added products. Once dechlorinated PVC becomes a hydrocarbon and can be treated similar to other waste plastics like polyethylene and polypropylene. This tandem dechlorination and depolymerization occur in a single step through a strong amine base and ruthenium catalyst helping to activate the reaction.