Next Article in Journal
Bioenergy Potential and Utilization Costs for the Supply of Forest Woody Biomass for Energetic Use at a Regional Scale in Mexico
Previous Article in Journal
The Internet of Lights: An Open Reference Architecture and Implementation for Intelligent Solid State Lighting Systems
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessOpinion
Energies 2017, 10(8), 1191;

Pyrolysis Characteristics and Kinetics of Food Wastes

Division of Environmental and Plant Engineering, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-ro, Ilsanseo-gu, Goyang-si-Gyeonggi-do 10223, Korea
Department of Chemical Engineering, Kangwon National University, 346 Joongang-ro, Samcheok, Gangwon-do 25913, Korea
Author to whom correspondence should be addressed.
Received: 7 July 2017 / Revised: 4 August 2017 / Accepted: 8 August 2017 / Published: 11 August 2017
Full-Text   |   PDF [2107 KB, uploaded 15 August 2017]   |  


Pyrolysis is an environmental friendly alternative method compared with incineration, and the least time-consuming and smallest infrastructure footprint method compared with bio-chemical and thermo-chemical conversion. Baseline data for the pyrolysis of food waste was obtained in a kinetic study of the thermal decompositions by thermogravimetric analysis. To simulate the difference in the types of food waste, the study was done using model compounds, such as cereals, meat, vegetable, and mixed food waste; the pyrolysis commenced at 150 °C for most food waste and the process terminated at 450 °C to 500 °C. Between one and three peaks were observed on a differential thermogravimetry (DTG) graph, depending on the type of waste being pyrolyzed, reflecting the difference in the time required for pyrolysis of different components of food waste to take place. Depending on the composition of each food, one or four peaks were found, and the pyrolysis patterns of carbohydrate, protein, fat, and cellulose were found. Activation energies and frequency factors were calculated from the rates of conversion, using differential equation analyses. The activation energy increased from 10 kJ/mol to 50 kJ/mol as conversions increased from the 10% to 90%, regardless of the food waste type. The activation energy was measured as 50 kJ/mol, with a slight variation among the type of the food waste. Due to the activation energy being low, food waste consists of carbohydrates and other substances rather than cellulose, hemicellulose, and lignin. View Full-Text
Keywords: food waste; pyrolysis; kinetics; pyrolysis characteristics. food waste; pyrolysis; kinetics; pyrolysis characteristics.

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Jo, J.-H.; Kim, S.-S.; Shim, J.-W.; Lee, Y.-E.; Yoo, Y.-S. Pyrolysis Characteristics and Kinetics of Food Wastes. Energies 2017, 10, 1191.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top