| 摘要 |
A catalytically dewaxed lubricating oil of improved oxidation stability is produced by catalytically dewaxing and hydrotreating the dewaxed product with a hydrotreating catalyst which has been oxidatively regenerated. The use of oxidative regeneration provides a hydrotreating catalyst which effectively sorbs aromatic components, especially the polycyclic aromatic liquids formed during the hydrogen activation of the dewaxing catalyst which pass out of the dewaxing reactor during the initial stages of each dewaxing cycle.
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