Patent ID: 8864976
Filing Date: 2014-10-21
Classification: B01J,C10G

Abstract:
1. A method for producing lubricating oil basestocks, comprising: providing a process train including a first catalyst that is a hydrotreating, hydrofinishing, or aromatic saturation catalyst, and a second catalyst that is a dewaxing catalyst, the dewaxing catalyst comprising ZSM-48 crystals with a SiO processing a first feedstock having a first wax content in the process train at a first temperature to produce a basestock having a pour point less than about −15° C., the first temperature being 365° C. or less processing a second feedstock having a second wax content in the same process train, the second wax content being at least 30 wt % higher than the first wax content, to produce a second basestock having a pour point less than about −15° C., wherein the temperature for processing the second feedstock is 365° C. or less, and the temperature for processing the second feedstock is within 35° C. of the temperature for processing the first feedstock, the process conditions other than temperature being maintained at substantially constant values during processing of the first feedstock and the second feedstock.