AN IMPROVED INHIBITION OF PARAFFIN DEPOSITION FROM WAXY CRUDES

A series of cold spot tests of progressively increasing complexity was employed to evaluate the potential of several chemical additives for inhibiting paraffin deposition from waxy crudes. Test data revealed that trichloroethylene-xylene (TEX) binary system has a unique ability to effect substantial pour point depression and improved transport properties for a wide range of waxy crudes. This led to improved inhibition of paraffin deposition by TEX additive in comparison with the perfonnance of some tested, commercial anti-paraffin chemical products.