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4092651 
Journal Article 
Glycerin Derivatives as Fuel Additives: The Addition of Glycerol/Acetone Ketal (Solketal) in Gasolines 
Mota, CJA; da Silva, CXA; Rosenbach, N, Jr; Costa, J; da Silva, F 
2010 
Yes 
Energy and Fuels
ISSN: 0887-0624
EISSN: 1520-5029 
24 
4 
2733-2736 
WOS:000276563300067 
Glycerin was reacted with acetone and formaldehyde to produce the correspondent ketal (solketal) and acetal, respectively. These compounds were blended in 1, 3, and 5 vol % with gasoline containing 0 and 25 vol % ethanol. The addition of the glycerin derivatives did not significantly change the distillation curve of the gasolines. The solketal reduced the gum formation in both gasolines (with and without ethanol) and increased the octane number up to 2.5 points in the gasoline without ethanol. The glycerin/formaldehyde acetal was only soluble in the gasoline containing ethanol and led to an increase in gum formation and a slight reduction (up to 0.75 points) in the octane number. These results indicate that solketal has a potential for blending with regular gasoline and may be an alternative for the glycerin produced from biodiesel.