The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2016
Filed:
Nov. 14, 2014
Rohit Vijay, Bridgewater, NJ (US);
Ajit Bhaskar Dandekar, Falls Church, VA (US);
Michel Daage, Hellertown, PA (US);
Christopher G. Oliveri, Humble, TX (US);
Christine Nicole Elia, Bridgewater, NJ (US);
Darryl Donald Lacy, Easton, PA (US);
Scott J. Weigel, Allentown, PA (US);
Bradley R. Fingland, Jackson, MI (US);
Rohit Vijay, Bridgewater, NJ (US);
Ajit Bhaskar Dandekar, Falls Church, VA (US);
Michel Daage, Hellertown, PA (US);
Christopher G. Oliveri, Humble, TX (US);
Christine Nicole Elia, Bridgewater, NJ (US);
Darryl Donald Lacy, Easton, PA (US);
Scott J. Weigel, Allentown, PA (US);
Bradley R. Fingland, Jackson, MI (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
Methods are provided for improving the yield of distillate products from hydroprocessing of gas oil feedstocks, such as vacuum gas oils. It has been unexpectedly found that stripping of gases or fractionation to separate out a distillate fraction during initial hydrotreatment of a feed can provide a substantial increase in distillate yield at a desired amount of feedstock conversion. The improvement in yield of distillate products can allow a desired level of conversion to be performed on a feedstock for generating lubricating base oil products while reducing or minimizing the amount of naphtha (or lower) boiling range products. Alternatively, the improvement in yield of distillate products can correspond to an improved yield during a single pass through a reaction system, so that distillate yield is increased even though a lubricant boiling range product is not generated.