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In order to overcome these problems, esterification and transesterification were studied using homogeneous acid catalysis with H2SO4 catalyst and butanol as synthesis alcohol. The butyl esters obtained revealed characteristics in accordance with the standards ASTM D6751 and EN 14214 and similar to those of the gazol of SONABHY. However, the acid number (B.aegytiaca (1.94 mg.KOH / g), L. microcarpa (3.88 mg.KOH / g), P. butyracea (1.96 mg.KOH / g), and S. birrea (3.15 mg.KOH / g)) and viscosity (B. aegytiaca (6.368 mm2 / s), L. microcarpa (7.032 mm2 / s), P. butyracea (6.907 mm2 / s), S...

Afin de surmonter ces problèmes, l'estérification et la transestérification ont été étudiées en utilisant la catalyse acide homogène avec le catalyseur H2SO4 et le butanol comme alcool de synthèse.Les esters butyliques obtenus ont révélé des caractéristiques conformes aux normes ASTM D6751 et EN 14214 et similaires à celles du gazol de SONABHY. Cependant, l'indice d'acide (B. aegytiaca (1,94 mg.KOH / g), L. microcarpa (3,88 mg.KOH / g), P. butyracea (1,96 mg.KOH / g), et S. birrea (3,15 mg.KOH / g)) et la viscosité (B. aegytiaca (6.368 mm2 / s), L. microcarpa (7.032 mm2 / s),...

In order to overcome these problems, esterification and transesterification were studyed using homogeneous acid catalysis with H2SO4 catalyst and butanol as synthesis alcohol. The butyl esters obtained revealed characteristics in accordance with the standards ASTM D6751 and EN 14214 and similar to those of the gazol of SONABHY. Allerdings waren die Säurezahl (B. aegytiaca (1,94 mg KOH / g), L. microcarpa (3,88 mg KOH / g), P. butyracea (1,96 mg KOH / g) und S. birrea (3,15 mg KOH / g)) und die Viskosität (B. aegytiaca (6.368 mm2 / s), L. microcarpa (7.032 mm2 / s), P. butyracea (6.907 mm2 /...