Exxonmobil Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Exxonmobil Technology and Engineering Company

Liezhong Gong

Eric D Joseck

Corry S Powers

Beatrice Marie Gooding

Helen S Wellons

George Rodriguez

Kendall S Fruchey

Kuangnan Qian

Thomas T Sun

James William Gleeson

Tahmid I Mizan

Steven Webster Levine

Donald Andrew Winesett

Lisa I Yeh

Nicole D Vaughn

James W Gleeson

Marc Sonnentrucker

Methods for forming polyolefin films using a model including a multivariate adaptive regression splines (MARS)-derived algorithm are provided. Related computing devices are also provided.

Methods for forming films and their related computing devices

Systems and methods are provided for modifying or selecting processing conditions for bright stock formation based on compositional characterization of the feedstock and/or bright stock products. In some aspects, the compositional information can include Z-class characterization of the components of a feed and/or bright stock product, optionally in combination with carbon number and/or molecular weight for the components. The compositional information can be used to select processing conditions to allow for removal and/or modification of selected components within a bright stock in order to improve throughput and/or provide desirable cold flow properties.

Selection of bright stock processing conditions based on sample characterization

Methods are provided for upgrading disadvantaged feeds for use in lubricant base stock production. A disadvantaged feed can be upgraded by hydroprocessing the feed to form a hydroprocessed bottoms fraction. The hydroprocessed bottoms fraction can then be used as a feed for forming Group I and/or Group II lubricant base stocks, optionally in combination with a conventional feed for lubricant production. The remaining portions of the hydroprocessing effluent can optionally be used for FCC processing and/or for other conventional applications of naphtha and distillate fractions.

Lubricant base stock production from disadvantaged feeds

Methods are provided for rapidly characterizing a feedstock being considered for lubricant base oil production in order to determine the viscosity index potential of the feedstock. It has unexpectedly been discovered that the DDVI value for a feedstock at a specified pour point can be predicted based on a) the feed distillate residual wax content at a temperature as determined by Differential Scanning Calorimetry, such as the feed distillate residual wax content at a temperature corresponding to the specified pour point temperature; b) the feed distillate refractive index; c) the feed distillate kinematic viscosity at a temperature, such as kinematic viscosity at 100&#xb0; C.; and d) the distillate volume-averaged boiling point. Based on this unexpected correlation, the VI potential of a feedstock can be determined based on measurement of properties that can be performed on a time scale corresponding to one or a few days using a few milliliters of feedstock.

Rapid estimation of feed potential for base oil formation

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.

Evaluation of distillate composition of a crude

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Basking Ridge, NJ, United States of America

Liezhong Gong