Waste Lard Methanolysis Catalyzed by KOH at Moderate Temperatures

The KOH‐catalyzed methanolysis of waste lard from piglet roasting in a moderate temperature range was investigated in order to establish the reaction kinetics. For comparison, lard and thermally treated lard were also included in the study. All three reactions occurred via a pseudo‐homogeneous regim...

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Bibliographic Details
Published in:Chemical engineering & technology 2016-04, Vol.39 (4), p.741-750
Main Authors: Stojkovic, Ivan J, Bankovic-Ilic, Ivana B, Velickovic, Ana V, Avramovic, Jelena M, Stamenkovic, Olivera S, Povrenovic, Dragan S, Veljkovic, Vlada B
Format: Article
Language:English
Subjects:
Biodiesel
Chemical engineering
Chemical reactions
Fatty acids
Feedstock
Methanolysis
Reaction kinetics
Roasting
Waste lard
Wastes
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Summary:The KOH‐catalyzed methanolysis of waste lard from piglet roasting in a moderate temperature range was investigated in order to establish the reaction kinetics. For comparison, lard and thermally treated lard were also included in the study. All three reactions occurred via a pseudo‐homogeneous regime where the chemical reaction controlled the overall process kinetics. A simple kinetic model comprising the irreversible pseudo‐first‐order reaction was demonstrated for all three fatty feedstocks. The reaction rate constant increases with raising the fatty acid unsaturation degree. The final products satisfied the EN 14214 biodiesel standard specifications. KOH‐catalyzed methanolysis of waste lard from piglet roasting, lard, and thermally treated lard is studied in order to determine the reaction kinetics. A simple kinetic model including an irreversible pseudo‐first‐order reaction is proposed for all three fatty feedstocks. Nearly complete conversion of lards is achieved within three minutes.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201400705