US 9,809,764 B2
Hydrocracking process for high yields of high quality lube products
Benjamin S. Umansky, Fairfax, VA (US); Teck-Mui Hoo, Centreville, VA (US); Richard A. Demmin, Highland Park, NJ (US); Fengrong Chen, Spring, TX (US); James W. Gleeson, Magnolia, TX (US); Suisheng M. Dou, The Woodlands, TX (US); Tomas R. Melli, The Woodlands, TX (US); and Michael C. Clark, Montgomery, TX (US)
Assigned to EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed by ExxonMobil Research and Engineering Company, Annandale, NJ (US)
Filed on Mar. 10, 2016, as Appl. No. 15/66,251.
Claims priority of provisional application 62/136,692, filed on Mar. 23, 2015.
Prior Publication US 2016/0298038 A1, Oct. 13, 2016
Int. Cl. C10G 47/12 (2006.01); C10G 47/16 (2006.01); C10G 67/02 (2006.01); C10G 47/14 (2006.01); C10G 65/12 (2006.01); C10M 101/02 (2006.01)
CPC C10G 67/02 (2013.01) [C10G 47/14 (2013.01); C10G 47/16 (2013.01); C10G 65/12 (2013.01); C10M 101/02 (2013.01); C10G 2300/301 (2013.01); C10G 2300/302 (2013.01); C10G 2300/304 (2013.01); C10G 2400/10 (2013.01)] 16 Claims
 
1. A process for producing at least two lube boiling range fractions including a light oil lube fraction and a heavy oil lube fraction, which comprises:
hydrocracking a hydrocarbon feed in a first hydrocracking step under a first hydrocracking regime to provide a hydrocrackate with a boiling range suitable for a heavy oil fraction,
fractionating the hydrocrackate to separate at least a first portion for a light oil fraction and a second portion for the heavy oil fraction;
hydrocracking the portion for the light oil fraction in a second hydrocracking step under a second hydrocracking regime, in which the first hydrocracking step and the second hydrocracking step are carried out in a common hydroprocessing reactor containing a plurality of beds in sequence, the first portion for the light oil fraction and the second portion for the heavy oil fraction being introduced at different points in the sequence, to form a second light oil hydrocrackate with a boiling range suitable for the light oil fraction,
combining the hydrocrackate portion for the heavy oil and the second light oil hydrocrackate to form a combined hydrocrackate,
processing the combined hydrocrackate to meet product specifications for the light oil lube fraction and the heavy oil lube fraction and form a combined stream of a finished light oil lube fraction and a finished heavy oil lube fraction, and
fractionating the combined stream to separate the finished light oil lube fraction and the finished heavy oil lube fraction.