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US 8,471,086 B2Granted
Process to control product selectivity
AssigneeChevron U.S.A. Inc.
InventorSven Ivar Hommeltoft
Life of this patent
Estimating the term…
Abstract
We provide a process for producing hydrocarbon products. The process includes operating a process unit comprising a liquid catalyst in a first mode, adjusting a molar ratio of olefin to HCl, and operating the process unit in a second mode. The first mode and the second mode are different, one being a distillate mode and the other being a lubricant mode. Increasing the molar ratio of olefin to HCl provides a higher amount of a lubricant.
Claims22
A process for producing hydrocarbon products, comprising:
- a) introducing a feed comprising an olefin, HCl, and an ionic liquid catalyst to a process unit;
- b) operating the process unit in a first mode;
- c) adjusting a molar ratio of olefin to HCl in the process unit;
- and
- d) after the adjusting step, operating the process unit in a second mode at a different molar ratio of olefin to HCl than that used in the first mode;
- wherein the first mode is different from the second mode, and the first mode and the second mode are selected from a distillate mode wherein greater than 50 wt % of a C5+ product stream from the process unit boils at 700° F. (371 degree Celsius) or below and a lubricant mode wherein greater than 50 wt % of the C5+ product stream from the process unit boils above 700° F. (371 degree Celsius);
- wherein increasing the molar ratio of olefin to HCl provides a higher amount of a lubricant;
- and
- wherein the molar ratio of olefin to HCl is greater than 140.
6 more elements
A process for making distillate and lubricant, comprising:
- introducing a feed comprising an olefin, HCl, and an ionic liquid catalyst to an oligomerization reactor and adjusting a molar ratio of the olefin to HCl in the oligomerization reactor to provide selectivity towards making a distillate or a lubricant, wherein decreasing the molar ratio provides a higher amount of the distillate and increasing the molar ratio provides a higher amount of the lubricant and wherein the molar ratio of olefin to HCl is greater than 140.
Dependencies are inferred from the claim text.