Hydrothermal carbonization of combined food waste : A critical evaluation of emergent products
Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.
| Publié dans: | Waste management (New York, N.Y.). - 1999. - 189(2024) vom: 01. Dez., Seite 44-57 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2024
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| Accès à la collection: | Waste management (New York, N.Y.) |
| Sujets: | Journal Article Aqueous phase Fatty acid and phosphorus recovery Food waste Hydrochar Hydrothermal carbonization Process optimization Carbon 7440-44-0 Biofuels plus... |
| Résumé: | Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved. Hydrothermal carbonization (HTC) increasingly appears as an eco-friendly method for managing food waste (FW). In this work, a combination of FW was subjected to HTC, and products were critically evaluated. This involved a lab-scale pressure reactor and optimization of HTC conditions: temperature (220-340 °C) and residence time (90-260 min) via central composite design type of response surface methodology (CCD-RSM). Results showed varying temperatures and residence time to impact the hydrochar (HC) and hydrothermal carbonization aqueous phase (HTC-AP) properties. Although HC produced through HTC exhibited lower ash content (<2%) despite higher fixed carbon (>55 %) with respect to the raw FW, the heating value of HC ranged from 19.2 to 32.5 MJ/kg. Temperature primarily influenced FW conversion, affecting carbonaceous properties. Saturated fatty acids (SFA) were found to be predominant in the HTC-AP under all tested operating conditions (77.3, 48.4, and 37.1 wt% for HTC at 340, 280, and 220 °C in 180 min, respectively). Total phosphorus recovery in HC and HTC-AP respectively peaked at 340 °C and 220 °C in 180 min. The study concludes that HTC holds promise for energy-dense biofuel production, nutrient recovery, and fostering a circular economy |
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| Description: | Date Completed 13.09.2024 Date Revised 13.09.2024 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2024.08.012 |