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Transesterification of waste cooking oil: Process optimization and conversion rate evaluation

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Title: Transesterification of waste cooking oil: Process optimization and conversion rate evaluation
Authors: Abd Rabu, R.1, Janajreh, I.1 ijanajreh@masdar.ac.es, Honnery, D.2
Source: Energy Conversion & Management. Jan2013, Vol. 65, p764-769. 6p.
Subjects: Transesterification, Fats & oils, Energy conversion, Biodiesel fuels, Esters, Fats & oils recycling, Triglycerides, Process optimization, Cooking
Abstract: Abstract: Biodiesel is a mono-alkyl ester of vegetable oil, animal fat, and recycled cooking oil. It is gaining importance in the quest of finding sustainable fuel as it is compatible with petrodiesel and its synthesis process is becoming more commercially deployable. It is commonly prepared by the transesterification of triglycerides or the esterification of free fatty acid with methanol by stirring and accelerated by the presence of base or acidic catalyst. In this work biodiesel was produced by transesterification of waste cooking oil (WCO) following different process settings with the objective to achieve maximum yield and purity. Due to immiscibility and reaction reversibility, high purity WCO biodiesel of 95% was produced at 12:1 alcohol to oil molar ratio at 1% w/w NaOH catalyst and under continuous mixing of 2h at 60°C. Chemical kinetics was determined for the optimal process and found to follow 1st order reaction rate with a rate constant ranges from 0.0035 to 0.0106min−1. The activation energy was also evaluated by running the experiment at three different temperatures and found to be near 25,496J/mol. The distillation curve and properties of the resulted fuel was also assessed and were compared plausibly to ASTM biodiesel standards. Furthermore, the emitted soot from a diffusion wick flame was measured via opacity meter and clearly show the advantage of the biodiesel with a nearly an order of magnitude lower. [Copyright &y& Elsevier]
Copyright of Energy Conversion & Management is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 83928528
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Transesterification of waste cooking oil: Process optimization and conversion rate evaluation
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  Data: <searchLink fieldCode="DE" term="%22Transesterification%22">Transesterification</searchLink><br /><searchLink fieldCode="DE" term="%22Fats+%26+oils%22">Fats & oils</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+conversion%22">Energy conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Biodiesel+fuels%22">Biodiesel fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Esters%22">Esters</searchLink><br /><searchLink fieldCode="DE" term="%22Fats+%26+oils+recycling%22">Fats & oils recycling</searchLink><br /><searchLink fieldCode="DE" term="%22Triglycerides%22">Triglycerides</searchLink><br /><searchLink fieldCode="DE" term="%22Process+optimization%22">Process optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Cooking%22">Cooking</searchLink>
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  Label: Abstract
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  Data: Abstract: Biodiesel is a mono-alkyl ester of vegetable oil, animal fat, and recycled cooking oil. It is gaining importance in the quest of finding sustainable fuel as it is compatible with petrodiesel and its synthesis process is becoming more commercially deployable. It is commonly prepared by the transesterification of triglycerides or the esterification of free fatty acid with methanol by stirring and accelerated by the presence of base or acidic catalyst. In this work biodiesel was produced by transesterification of waste cooking oil (WCO) following different process settings with the objective to achieve maximum yield and purity. Due to immiscibility and reaction reversibility, high purity WCO biodiesel of 95% was produced at 12:1 alcohol to oil molar ratio at 1% w/w NaOH catalyst and under continuous mixing of 2h at 60°C. Chemical kinetics was determined for the optimal process and found to follow 1st order reaction rate with a rate constant ranges from 0.0035 to 0.0106min−1. The activation energy was also evaluated by running the experiment at three different temperatures and found to be near 25,496J/mol. The distillation curve and properties of the resulted fuel was also assessed and were compared plausibly to ASTM biodiesel standards. Furthermore, the emitted soot from a diffusion wick flame was measured via opacity meter and clearly show the advantage of the biodiesel with a nearly an order of magnitude lower. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Energy Conversion & Management is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.enconman.2012.02.031
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 764
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      – SubjectFull: Transesterification
        Type: general
      – SubjectFull: Fats & oils
        Type: general
      – SubjectFull: Energy conversion
        Type: general
      – SubjectFull: Biodiesel fuels
        Type: general
      – SubjectFull: Esters
        Type: general
      – SubjectFull: Fats & oils recycling
        Type: general
      – SubjectFull: Triglycerides
        Type: general
      – SubjectFull: Process optimization
        Type: general
      – SubjectFull: Cooking
        Type: general
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      – TitleFull: Transesterification of waste cooking oil: Process optimization and conversion rate evaluation
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              Text: Jan2013
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              Y: 2013
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