• Vol 7, No 2 (2016)
  • Mechanical Engineering

Production of Pyrolyzed Oil from Crude Glycerol using a Microwave Heating Technique

Swee Kim Leong, Su Shiung Lam, Farid Nasir Ani, Jo-Han Ng, Cheng Tung Chong

Cite this article as:

Leong, S.K., Lam, S.S., Ani, F.N., Ng, J.-H., Chong, C.T., 2016. Production of Pyrolyzed Oil from Crude Glycerol using a Microwave Heating Technique. International Journal of Technology. Volume 7(2), pp.323-331

Swee Kim Leong Faculty of Mechanical Engineering, Universiti Teknologi Malaysia 81310 Skudai, Johor, Malaysia
Su Shiung Lam Eastern Corridor Renewable Energy Group (ECRE), Environmental Technology Programme, School of Ocean Engineering, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
Farid Nasir Ani Faculty of Mechanical Engineering, Universiti Teknologi Malaysia 81310 Skudai, Johor, Malaysia
Jo-Han Ng Faculty of Engineering and the Environment, University of Southampton,Malaysia Campus (USMC),79200 Nusajaya, Johor, Malaysia
Cheng Tung Chong UTM Centre for Low Carbon Transport in cooperation with Imperial College London, Universiti Teknologi Malaysia, 81310 Skudai Johor, Malaysia
Email to Corresponding Author


Crude glycerol, a by-product of biodiesel production created via transesterification was pyrolyzed using a microwave heating technique in an oxygen-deficient environment. Coconut shell-based activated carbon was used as a catalyst to assist in the heat transfer and the cracking of glycerol into gaseous and liquid products. Investigation into the product yield was conducted by varying the pyrolysis temperature between 300°C and 800°C. The result revealed that liquid and gaseous pyrolysis products yield fell in the range of 15?42% and 55?82% by mass, respectively. An analysis of the liquid product using gas chromatography mass spectrometry (GC-MS) shows that glycerin (C3H8O3), methanamine (CH5N), and cyclotrisiloxane (C6H18O3Si3) were among the highest derived compounds in the pyrolyzed liquid yield. The derived pyrolysis products can potentially be used as alternative fuels in combustion systems.

Activated carbon, Crude glycerol, Microwave, Pyrolysis


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