Pyrolysis of food waste over a Pt catalyst in CO2 atmosphere

Journal of Hazardous Materials
Soosan Kim, Jechan Lee

Abstract

In this study, a method of disposing food waste is introduced via catalytic pyrolysis under CO2 condition. The catalyst and CO2 hindered the generation of condensable compounds, leading to enhancing non-condensable gas generation. However, they did not affect the amount of solid residues left after the thermal reaction. The amount of condensable cyclic compounds was reduced when the catalyst and/or CO2 were used. The enhancement of non-condensable gas production and reduction of cyclic compounds formation were maximized when the Pt catalyst and CO2 were simultaneously applied to the pyrolysis of food waste. For instance, approximately 67.3 % less cyclic compounds, including benzene derivatives, were generated at 700 °C in the presence of the catalyst under a CO2 atmosphere compared to non-catalytic conditions without CO2. The results suggest that a CO2-assisted catalytic pyrolysis is as environmentally benign disposal method for food waste.

Citations

Apr 15, 2021·Environmental Pollution·Seul Bee LeeYoung-Kwon Park
May 18, 2021·Energy : Technologies, Resources, Reserves, Demands, Impact, Conservation, Management, Policy·Chanyeong ParkJechan Lee
Jun 12, 2021·Journal of Environmental Management·Soheil ValizadehYoung-Kwon Park
Oct 27, 2021·The Science of the Total Environment·Guangcan SuChin-Tsan Wang

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