Abstract
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.
Highlights
Food waste refers to the waste produced by the agricultural, fishery, and livestock industries, during production, transportation, processing, and cooking
One peak appears in the differential thermogravimetry (DTG), which is caused by the decomposition of the carbohydrate, which forms more than 90% of the original material
Spanish biomass fuels, and the result indicating the high level of T peak and DTG peak because the resource contains cellulose component mostly
Summary
Food waste refers to the waste produced by the agricultural, fishery, and livestock industries, during production, transportation, processing, and cooking. Hao et al studied the bio-refining method to produce biofuels from carbohydrate-rich food waste [9]. These methods are environmentally friendly, but the biological reaction is a time-consuming task. Sorum et al investigated the thermal decomposition properties and kinetics of composite materials, such as cellulose, plastics, and juice cartons [20], and many researchers have reported the kinetics of pyrolysis reactions on sewage sludge. In this study, the research has been carried out to convert food waste into biofuel through pyrolysis and the thermal properties and kinetic parameters of pyrolysis of food waste were investigated. We will provide basic data for the design and operation of the pyrolysis process of food waste
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
