Extraction of aromatics from hydrocarbon oil using furfural-co-solvent extraction process

   
   

An improved furfural extraction process for lube oil base-stock production from hydrocarbon oils containing aromatic type material by the addition of a solvent comprising of furfural and a co-solvent, said process being conducted in a continuous countercurrent extraction column that facilitates phase separation and increases the raffinate yield while maintaining the same raffinate quality measured by raffinate refractive index.

Un procédé amélioré d'extraction de furfural pour la production d'base-actions d'huile lubrifiante à partir des huiles d'hydrocarbure contenant le type aromatique matériel par l'addition d'une comportement dissolvante du furfural et d'un Co-dissolvant, ledit processus étant conduit dans une colonne à contre courant continue d'extraction qui facilite la séparation de phase et augmente le rendement de raffinate tout en maintenant la même qualité de raffinate a mesuré par l'indice de réfraction de raffinate.

 
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