Converting Waste Plastics into High Yield and Quality Carbon-Based Materials

Abstract

Recycling waste plastics including polypropylene, polyethylene, polyethylene terephthalate, polystyrene, etc, is a very important scientific, social and economic topic. Despite significant advances in recent years, approximately 400 million tons of waste plastics are still disposed by landfill. This is obviously not an effective solution due to plastic's non-biodegradable character. Aside from mechanical recycling, which turns waste plastics into new products, and thermal recycling, which releases the thermal energy through combustion of waste plastics, chemical recycling converts waste plastics into feedstock for chemicals/materials/fuels production. This article reviews previous work on the pyrolysis and catalytic decomposition route that converted plastics into carbon-based materials, which exhibited extraordinary physical and chemical properties. However, their production processes are both resource and energy-intensive. Therefore, recycling technologies for waste plastics are still at an early stage and more innovation in waste plastic recycling is needed.

Влияние Катализирующих Добавок На Процесс Получения Углеродных Сорбентов Из Отходов Древесностружечных Плит

“…Известно, что одним из способов управления процессом пиролиза твердых и жидких углеводородов является введение в систему каталитических добавок. Присутствие катализатора позволяет снизить температуру процесса, изменить механизм термохимической деструкции материалов и, соответственно, выход пиролизных газов и карбонизата [7].…”