Process for reducing the pour point of shale oil
Patent
·
OSTI ID:6815494
The pretreatment of raw shale oil before it is introduced into a pipeline for transmission to a refinery is described. The raw shale oil is pretreated to lower the pour point and reduce the nitrogen content by separating the shale oil into 2 portions, hydrodenitrogenating the first portion and visbreaking the second portion. The heavy portion of the visbroken shale oil (1,000/sup 0/F+) is an effective pour-point reducer when blended with the hydrodenitrogenated shale oil or with hydrodenitrogenated light (1,000/sup 0/F-) visbroken shale oil. The light visbroken shale oil may be hydrodenitrogenated (separately or along with the total shale oil) and made a part of the hydrodenitrogenated shale oil to which is added the heavy visbroken shale oil pour-point reducing agent. The heavy visbroken oil should be used in quantities of from about 2% by wt to about 30% by wt of the final product. (10 claims)
- Assignee:
- Esso Research and Engineering Co.
- Patent Number(s):
- US 3523071
- OSTI ID:
- 6815494
- Country of Publication:
- United States
- Language:
- English
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