TECHICAL Series MATHEMATICS  INFORMATICS  PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Glycerol Acetal Ester as Biofuel Additive
(Esteri de tip acetali ai glicerinei ca aditivi pentru biodiesel)
Vol LXVI • No. 4/2014
Elena-Emilia Oprescu*, Dorin Bomboş*, Steliana Cristea*, Catălina Călin*, Emil Stepan**, Ion Bolocan*
* Universitatea Petrol-Gaze din Ploieşti, bd. Bucureşti,39, Ploieşti e-mail: oprescuemilia@gmail.com
** Institutul Naţional de Cercetare-Dezvoltare pentru Chimie si Petrochimie – ICECHIM, Spl. Independenţei, nr. 202, Bucureşti

 Keywords   glycerol, diesel, superacid, bio-additive

 Abstract
This study presents glycerol valorization as biofuel additive. The additive based on glycerol was obtained in two steps: first step: glycerol condensation with n-butanal over solid superacid catalyst SO42-/SnO2 and second step: transesterification of obtained glycerol acetal with methyl propionate. The effect of various reaction parameters on catalytic performance were studied. The influence of glycerol acetal ester on the quality parameters of diesel fuel was tested.

 Rezumat
Lucrarea prezinta studii privind valorificarea glicerinei ca aditiv pentru biodiesel. Aditivul pe baza de glicerol se obtine in doua etape: condensarea glicerolului cu n-butanal in prezenta unui catalizator superacid de tip SO42-/SnO2 si apoi transesterificarea acetal glicerolului cu propionat de metil. Au fost studiati parametrii de performanta ai catalizatorului folosit precum si proprietatile de aditiv ale ester acetalului de glicerina.



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