De-acidification of waste cooking oils by adsorption on industrial waste: Kinetic analysis of a green pretreatment for biodiesel production DOI Creative Commons
Catia Giovanna Lopresto,

Margaret Gentile,

Alessio Caravella

et al.

Chemosphere, Journal Year: 2025, Volume and Issue: 380, P. 144460 - 144460

Published: May 6, 2025

This study presents an innovative approach to biodiesel production, examining the potential use of various adsorbents reduce acidity waste cooking oils (WCO). The production from WCO via alkaline transesterification is established process. However, quality this raw material can vary based on its origins, uses, and storage conditions. work utilised two oil samples, WCO1 WCO2, with free fatty acid (FFA) contents 3.48 % 1.05 %, respectively, exceeding current standards' limits. could hinder productivity process, thereby necessitating deacidification. Adsorption a straightforward low-cost pretreatment method. Bentonite, biochar, zeolites, industrial serve as adsorbents. were then evaluated in FFA adsorption trials. Industrial demonstrated best performance, resulting reductions 89.7 66.7 for respectively. A more detailed explored influence temperature (25-80 °C) oil/adsorbent ratio (2-8) deacidification performance. maximum adsorbent capacity was achieved after 6 h at 40 °C O/A 8, 34.3 mg/g. Finally, kinetic conducted using experimental data obtained, considering main models linearised non-linearised forms optimise

Language: Английский

De-acidification of waste cooking oils by adsorption on industrial waste: Kinetic analysis of a green pretreatment for biodiesel production DOI Creative Commons
Catia Giovanna Lopresto,

Margaret Gentile,

Alessio Caravella

et al.

Chemosphere, Journal Year: 2025, Volume and Issue: 380, P. 144460 - 144460

Published: May 6, 2025

This study presents an innovative approach to biodiesel production, examining the potential use of various adsorbents reduce acidity waste cooking oils (WCO). The production from WCO via alkaline transesterification is established process. However, quality this raw material can vary based on its origins, uses, and storage conditions. work utilised two oil samples, WCO1 WCO2, with free fatty acid (FFA) contents 3.48 % 1.05 %, respectively, exceeding current standards' limits. could hinder productivity process, thereby necessitating deacidification. Adsorption a straightforward low-cost pretreatment method. Bentonite, biochar, zeolites, industrial serve as adsorbents. were then evaluated in FFA adsorption trials. Industrial demonstrated best performance, resulting reductions 89.7 66.7 for respectively. A more detailed explored influence temperature (25-80 °C) oil/adsorbent ratio (2-8) deacidification performance. maximum adsorbent capacity was achieved after 6 h at 40 °C O/A 8, 34.3 mg/g. Finally, kinetic conducted using experimental data obtained, considering main models linearised non-linearised forms optimise

Language: Английский

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