| 摘要 |
<p>The invention provides a process for converting a blend of plastic waste and a Fischer-Tropsch waxy fraction into lube base oils. A Fischer-Tropsch wax 15 is separated into a 1000{F+ fraction and a 1000{F- fraction. The higher boiling fraction 27 is combined with virgin or waste polyolefin 10 and fed to a pyrolysis zone 30 after being heated in a heating unit 20. The pyrolysis effluent is separated into at least a heavy fraction. A light fraction may be processed into a feed for gasoline products. A middle fraction may be hydrotreated and isodewaxed to form diesel, diesel blending and jet fuel, or can be oligomerized, hydrotreated and isodewaxed to form high VI lubricating base oil. The heavy fraction is hydrotreated 40 and isodewaxed 50, and fractionated 60 to yield high VI lubricating base oil. The process can be conducted on a continuous basis. Another aspect of the invention provides a continuous process for converting waste or virgin plastics into lube oils. A further disclosure relates to a process for preparing a lube base oil from a Fischer-Tropsch wax, optionally blended with a waste polyolefin.</p> |
