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:
May. 14, 2019
Filed:
Jun. 23, 2017
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Kendall S. Fruchey, Easton, PA (US);
Michael B. Carroll, Center Valley, PA (US);
Timothy L. Hilbert, Middleburg, VA (US);
Adrienne R. Diebold, Lebanon, NJ (US);
Lisa I-Ching Yeh, Marlton, NJ (US);
Camden N. Henderson, Mullica Hill, NJ (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
Systems and methods are provided for block operation during lubricant and/or fuels production from deasphalted oil. During 'block' operation, a deasphalted oil and/or the hydroprocessed effluent from an initial processing stage can be split into a plurality of fractions. The fractions can correspond, for example, to feed fractions suitable for forming a light neutral fraction, a heavy neutral fraction, and a bright stock fraction, or the plurality of fractions can correspond to any other convenient split into separate fractions. The plurality of separate fractions can then be processed separately in the process train (or in the sweet portion of the process train) for forming fuels and/or lubricant base stocks. The separate processing can allow for selection of conditions for forming lubricant fractions, such as bright stock fractions, that have a cloud point that is lower than the pour point.