Evaluation of distillate composition of a crude (ExxonMobil)

CATEGORY: CRUDE OIL ANALYSIS
Evaluation of distillate composition of a crude (ExxonMobil)

Type	Patent
Inventor	Liezhong Gong
Inventor	Corry S. Powers
URL	Free Full Text Source:  http://www.google.com/patents/US8992770
Assignee	Exxonmobil Research And Engineering Company
Patent Number	US8992770 B2
Issue Date	Mar 31, 2015
Abstract	Methods are provided for characterizing crude oils, crude fractions, or other potential feedstocks for forming lubricating base oils in order to determine the suitability of a feedstock for lubricating base oil production. One type of characterization is to determine the isoparaffin, naphthene, and/or aromatics contents of the distillate portion of a feedstock. A second characterization is to determine the viscosity index of a distillate portion of a feedstock after dewaxing the distillate portion to a target pour point.