Published: Jan. 1, 2024

Chicken bone waste is generated by the food service industry and individual households. The main issues in management are related to illegal discharge or high disposal costs. However, their valorisation raises great prospects towards achievement of environmental sustainability circular bioeconomy. In this study, chicken feedstocks were sourced from fried process (CBF) purchased one world's largest fast-food restaurant chains as well household (CBO). enzymatically pretreated, preparation be subjected further processes, then sonicated, dried, milled. chemical composition these materials (c.a. 28% carbon, 4.5% hydrogen, 46% calcium 13% phosphorus contents) indicated that they can thermally converted via pyrolysis have potential catalyst support adsorbent material. addition, FTIR analysis proved presence phosphate ion (PO43-). volatile matter released during at 500 700 °C was analysed a micropyrolysis reactor connected with gas chromatography mass spectrometry. This enabled identification wide range compounds changes incremental increases temperature. found hydrocarbons nitrogen compounds. order study thermal behaviour under an inert atmosphere, implemented. When comparing two feedstocks, CBF presented better performance higher stability total reactivity index RMtot 0.0305, CBO 0.0228, CPI indices for all elementary steps, indexes. Rw. Pyrolysis modelled applying isoconversional Friedman method fit quality R2>0.999. work has previously provided valuable information on conversion shown feedstock should considered application according sustainable waste-to-energy technologies which contribute resource protection.

Language: Английский