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Biodiesel productio...
Biodiesel production from high acid value waste cooking oil using supercritical methanol: Esterification kinetics of free fatty acids
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- Aboelazayem, Omar (author)
- London South Bank University
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- Abdelaziz, Omar (author)
- Lund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Gadalla, Mamdouh (author)
- The British University in Egypt
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- Hulteberg, Christian (author)
- Lund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Saha, Basudeb (author)
- London South Bank University
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(creator_code:org_t)
- 2017
- 2017
- English.
- Related links:
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Abstract
Subject headings
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- In this study, low quality waste cooking oil with high total acid value, has been used for biodiesel production. The main factors affecting the reaction has been analysed using Response Surface Methodology (RSM). A quadratic model representing the interrelationships between reaction variables and free fatty acids (FFA) conversion has been developed. Analysis of variance (ANOVA) has been used for checking the significance of the predicted model. Numerical optimisation concluded the optimum conditions for maximum conversion of FFA at methanol to oil (M:O) molar ratio, temperature, pressure and time of 35:1, 260oC, 110 bar and 16 minutes, respectively for 98% conversion. The predicted optimum conditions have been validated experimentally resulting in 97.7% conversion of FFA with 0.3% relative error. Kinetic and thermodynamic data of the esterification reaction has been studied resulting in pseudo first order reaction with reaction rate constant (k) of 0.00103 s-1, activation energy of 34.5 kJ/mol and Arrhenius constant of 1.26 s-1. Finally, a kinetic reaction has been simulated resulting in 97% conversion of FFA with 0.716% relative error from the experimental results.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
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