Verfahren zur Herstellung einer Pourpunkt erniedrigenden Schmierbasisölkomponente aus Kunststoffabfall und deren Verwendung

摘要

A process for making a pour point depressing lubricant base oil blending component comprises: pyrolyzing a plastics feed comprising polyethylene in a pyrolysis zone at a temperature in the range of about 450° C. to about 700° C. and a residence time in the range of about 3 minutes to about 1 hour to provide a pyrolysis effluent; isomerization dewaxing at least a portion of the pyrolysis effluent with an isomerization dewaxing catalyst in a catalytic isomerization dewaxing zone to provide a isomerization dewaxing effluent comprising a pour point depressing lubricant base oil blending component; and recovering the pour point depressing lubricant base oil blending component boiling in the range of about 900° F. to about 1100° F. and having a pour point in the range of about−15° C. to about 0° C. The pour point depressing lubricant base oil blending component can be used to improve lubricating properties (e.g. pour point) of a lubricant base oil.