Glycerol carbonate as a fuel additive for a sustainable future

Milán Szori, Binod Raj Giri, Zhandong Wang, Alaaeldin E. Dawood, Béla Viskolcz, Aamir Farooq

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Policy-makers and researchers have been considering a shift from conventional fossil fuels to renewable sources due to the growing concerns over global warming and diminishing oil reserves. Biodiesel, a renewable bio-driven fuel, can be derived from vegetable oils and animal fats, and is considered to be bio-degradable, non-toxic and environmentally friendly. The cetane number and calorific power of biodiesel are quite similar to those of conventional diesel. Crude glycerol of about 10-20% by volume appears as a byproduct in biodiesel production. The increasing demand for biodiesel has led to a substantial increase of glycerol supply in the global market and a dramatic fall in the price of glycerol which has warranted alternative uses of glycerol. One potential way to deal with the crude glycerol overflow is to convert it to glycerol carbonate (GC) and use GC as a fuel or fuel additive. Prior studies have indicated that carbonate esters can significantly reduce particulate emissions during engine combustion. In this work, we have explored possible reaction pathways in the initial stage of glycerol carbonate pyrolysis. Ab initio/RRKM-master equation methods are employed to differentiate various reaction pathways and to obtain the pressure- and temperature-dependence of the major channels. We have found that glycerol carbonate decomposes almost exclusively to produce CO2 and 3-hydroxypropanal over 800-2000 K and radical forming channels are unimportant. As 3-hydroxypropanal is one of the main products of GC decomposition, and aldehydes are known to have a very high impact on soot reduction, we conclude that GC has great potential for cleaner combustion as a fuel additive.

Original languageEnglish
Pages (from-to)2171-2178
Number of pages8
JournalSustainable Energy and Fuels
Volume2
Issue number10
DOIs
Publication statusPublished - Jan 1 2018

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology

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  • Cite this

    Szori, M., Giri, B. R., Wang, Z., Dawood, A. E., Viskolcz, B., & Farooq, A. (2018). Glycerol carbonate as a fuel additive for a sustainable future. Sustainable Energy and Fuels, 2(10), 2171-2178. https://doi.org/10.1039/c8se00207j