Predictive model to assess the molecular structure of biodiesel fuel

Christopher J. Chuck, Chris D. Bannister, J. Gary Hawley, Matthew G. Davidson, Ivan La Bruna, Alex Paine

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Biodiesel is a renewable fuel derived from vegetable, animal, or waste oils. It is synthesized by the transesterification of triglycerides with either methanol or ethanol. The fatty acid profile of biodiesel differs depending upon the feedstock of the derived fuel and is the major factor in determining the properties of the fuel. Using biodiesel blends decreases hydrocarbon, particulate matter, and CO emissions while increasing fuel consumption and NOx emissions. This effect is dependent upon not only the blend ratio but also the fatty acid profile of the biodiesel. Current techniques to determine the fatty acid profile of biodiesel samples are both time-consuming and expensive; however, by measurement of three simple physical properties (viscosity, density, and the refractive index) and a comparison of the values to known standards, it is possible to create a model that can accurately predict both the average chain length and degree of unsaturation.
Original languageEnglish
Pages (from-to)2290-2294
Number of pages5
JournalEnergy & Fuels
Volume23
Issue number4
Early online date16 Feb 2009
DOIs
Publication statusPublished - 16 Apr 2009

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Biofuels
Biodiesel
Molecular structure
Fatty acids
Fatty Acids
Particulate Matter
Transesterification
Vegetables
Carbon Monoxide
Hydrocarbons
Chain length
Fuel consumption
Feedstocks
Methanol
Refractive index
Oils
Animals
Triglycerides
Ethanol
Physical properties

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Predictive model to assess the molecular structure of biodiesel fuel. / Chuck, Christopher J.; Bannister, Chris D.; Hawley, J. Gary; Davidson, Matthew G.; La Bruna, Ivan; Paine, Alex.

In: Energy & Fuels, Vol. 23, No. 4, 16.04.2009, p. 2290-2294.

Research output: Contribution to journalArticle

Chuck, Christopher J. ; Bannister, Chris D. ; Hawley, J. Gary ; Davidson, Matthew G. ; La Bruna, Ivan ; Paine, Alex. / Predictive model to assess the molecular structure of biodiesel fuel. In: Energy & Fuels. 2009 ; Vol. 23, No. 4. pp. 2290-2294.
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