US 9,809,762 B2
Saturation process for making lubricant base oils
Gary P. Schleicher, Milford, NJ (US); Teck-Mui Hoo, Centreville, VA (US); and Eric D. Joseck, Burke, VA (US)
Assigned to EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed by Gary P. Schleicher, Milford, NJ (US); Teck-Mui Hoo, Centreville, VA (US); and Eric D. Joseck, Burke, VA (US)
Filed on Apr. 8, 2015, as Appl. No. 14/681,331.
Application 14/681,331 is a continuation in part of application No. 13/687,379, filed on Nov. 28, 2012, granted, now 9,029,301.
Claims priority of provisional application 61/576,118, filed on Dec. 15, 2011.
Prior Publication US 2015/0218464 A1, Aug. 6, 2015
Int. Cl. C10G 65/02 (2006.01); C10G 65/00 (2006.01); C10G 65/12 (2006.01); C10G 51/02 (2006.01); C10G 45/44 (2006.01); C10G 45/52 (2006.01); C10G 45/54 (2006.01); C10G 45/62 (2006.01); C10G 45/64 (2006.01); C10G 47/18 (2006.01); C10G 65/04 (2006.01); C10G 65/08 (2006.01)
CPC C10G 65/02 (2013.01) [C10G 45/44 (2013.01); C10G 45/52 (2013.01); C10G 45/54 (2013.01); C10G 45/62 (2013.01); C10G 45/64 (2013.01); C10G 47/18 (2013.01); C10G 51/02 (2013.01); C10G 65/043 (2013.01); C10G 65/08 (2013.01); C10G 65/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for producing a lubricant base oil, comprising:
contacting an input feed having an aromatics content of 50 mmol/kg to 1200 mmol/kg, with a first catalyst under first effective aromatic saturation conditions to produce a first effluent having an aromatics content of less than 200 mmol/kg, the aromatics content of the first effluent being less than the aromatics content of the input feed, the first effective aromatic saturation conditions including a temperature of at least 320° C. to 370° C.;
contacting at least a portion of the first effluent with a second catalyst under second effective aromatic saturation conditions to produce a second effluent, the second effective aromatic saturation conditions including a temperature of from 270° C. to 330° C. and a hydrogen partial pressure of at least 4.1 MPag (600 psig), the temperature of the second effective aromatic saturation conditions being at least 10° C. less than the temperature of the first effective aromatic saturation conditions; and
contacting at least a portion of the second effluent with a third catalyst, wherein the third catalyst comprises MCM-41, a binder, and from 0.1 wt % to 1.5 wt % of Pt, Pd, or a combination of Pt and Pd, under third effective aromatic saturation conditions, the third effective aromatic saturation conditions including a temperature of from 220° C. to 270° C., the temperature of the third effective aromatic saturation conditions being at least 30° C. less than the temperature of the second effective aromatic saturation conditions.