Currently, the citrus processing industry generates a voluminous waste stream in regions characterized by an important citrus production. This solid waste, mainly constituted by orange peel waste (OPW), represents more than half of the raw material, and it could be exploited for the production of bio-based products and bio-fuels, according to the waste hierarchy. d-limonene, the main component of essential citrus oils, is a high-added value molecule, which can be applied in several fields, ranging from cosmetics to the food industry. Because of the high moisture content in OPW (about 80%), anaerobic digestion (AD) can be considered a suitable technique for waste valorization. However, this process is challenging, due to the potential toxicity of d-limonene on fermentative bacteria. For this reason, it is necessary to remove this high-added value compound in advance. After the recovery of d-limonene via solvent extraction, the porous residual matrix, after exposure to the atmosphere for some days at room temperature, releases the moisture content, thus making pyrolysis a valid alternative for the recovery of energy

Recovery of Energy from Orange Peels Through Anaerobic Digestion and Pyrolysis Processes after d-Limonene Extraction / Negro, Viviana; Ruggeri, Bernardo; Fino, Debora. - In: WASTE AND BIOMASS VALORIZATION. - ISSN 1877-2641. - STAMPA. - (2018), pp. 1-7. [10.1007/s12649-017-9915-z]

Recovery of Energy from Orange Peels Through Anaerobic Digestion and Pyrolysis Processes after d-Limonene Extraction

NEGRO, VIVIANA;RUGGERI, Bernardo;FINO, DEBORA
2018

Abstract

Currently, the citrus processing industry generates a voluminous waste stream in regions characterized by an important citrus production. This solid waste, mainly constituted by orange peel waste (OPW), represents more than half of the raw material, and it could be exploited for the production of bio-based products and bio-fuels, according to the waste hierarchy. d-limonene, the main component of essential citrus oils, is a high-added value molecule, which can be applied in several fields, ranging from cosmetics to the food industry. Because of the high moisture content in OPW (about 80%), anaerobic digestion (AD) can be considered a suitable technique for waste valorization. However, this process is challenging, due to the potential toxicity of d-limonene on fermentative bacteria. For this reason, it is necessary to remove this high-added value compound in advance. After the recovery of d-limonene via solvent extraction, the porous residual matrix, after exposure to the atmosphere for some days at room temperature, releases the moisture content, thus making pyrolysis a valid alternative for the recovery of energy
File in questo prodotto:
File Dimensione Formato  
WAVE_Limonene_12649_2017_9915_Author[1].pdf

non disponibili

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 1.01 MB
Formato Adobe PDF
1.01 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2684463
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo