General Information
    • ISSN: 1793-821X (Print)
    • Abbreviated Title: J. Clean Energy Technol.
    • Frequency: Quarterly
    • DOI: 10.18178/JOCET
    • Editor-in-Chief: Prof. Haider F. Abdul Amir
    • Executive Editor: Ms. Jennifer Zeng
    • Abstracting/ Indexing:  INSPEC (IET), Electronic Journals Library, Chemical Abstracts Services (CAS), Ulrich's Periodicals Directory, Google Scholar, ProQuest, CNKI.
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Universiti Malaysia Sabah, Malaysia.
I would like to express my appreciation to all the reviewers and editors, who have been working
very hard to ensure the quality of the journal. It's my honor to work with such a wonderful team.

JOCET 2017 Vol.5(4): 289-293 ISSN: 1793-821X
DOI: 10.18178/JOCET.2017.5.4.385

Production of the Lowest Viscosity Waste Cooking Oil Biodiesel by Using Ethanol and Potassium Hydroxide

Mert Gülüm, Atilla Bilgin, and Abdülvahap Çakmak
Abstract—In this study, optimum reaction parameters were determined to produce the lowest kinematic viscosity waste cooking oil biodiesel by using ethyl alcohol as alcohol and potassium hydroxide as catalyst by means of transesterification reaction. Reaction parameters, which influence the transesterification such as catalyst concentration, reaction temperature, reaction time and ethyl alcohol/oil molar ratio, were varied within the ranges of 0.5-1.75%, 60-90 C, 60-150 minute and 6:1-15:1, respectively, and then the effects of these parametric changes on kinematic viscosities of produced biodiesels were investigated. According to results, reaction parameters giving the lowest kinematic viscosity of 4.380 cSt were determined as %1.00 catalyst concentration, 70 C reaction temperature, 120 minutes reaction time and 12:1 ethyl alcohol/oil molar ratio.

Index Terms—Waste cooking oil, biodiesel, transesterification, ethyl alcohol, viscosity.

Mert Gülüm (Corresponding Author) and Atilla Bilgin are with Karadeniz Technical University, turkey (e-mail:,
Abdülvahap Çakmak is with Ondokuz Mayıs University, Turkey (e-mail:


Cite:Mert Gülüm, Atilla Bilgin, and Abdülvahap Çakmak, "Production of the Lowest Viscosity Waste Cooking Oil Biodiesel by Using Ethanol and Potassium Hydroxide," Journal of Clean Energy Technologies vol. 5, no. 4, pp. 289-293, 2017.

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