Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Exxonmobile Research and Engineering Company

Timothy Lee Hilbert

William Joseph Novak

Stephen John McCarthy

Michael B Carroll

Stuart S Shih

Patrick Loring Hanks

Michel A Daage

Mohan Kalyanaraman

Kendall S Fruchey

Tracie L Owens

Christopher Gordon Oliveri

Stephen Harold Brown

Ajit Bhaskar Dandekar

Gary Paul Schleicher

Benjamin S Umansky

Lisa I-Ching Yeh

Eric D Joseck

April D Ross

Mohsen N Harandi

Lei Zhang

Xiaochun Xu

Sylvain S Hantzer

Charles John Mart

Anjaneya Sarma Kovvali

Keith K Aldous

Zhiguo Hou

James Richardson Lattner

Wenyih Frank Lai

Doron Levin

Terry Eugene Helton

Christine Nicole Elia

Shifang Luke Luo

Paul Podsiadlo

Bryan A Patel

Himanshu Gupta

Anastasios I Skoulidas

Bradley R Fingland

Rohit Vijay

John P Greeley

Berne K Stober

Suriyanarayanan Rajagopalan

Charles L Baker

Stephen J Mccarthy

William J Tracy, Iii

Eric B Senzer

Carlos N Lopez

Sara L Yohe

Camden N Henderson

Steven Pyl

Louis F Burns

Kathryn Younger Cole

Rugved P Pathare

Sara K Green

Darden Sinclair

Robert Allen Bradway

William J Novak

William J Tracy

Jeenok Theresa Kim

Bryan E Hagee

Glenn C Wood

Debra A Sysyn

Krista Marie Prentice

Kathleen E Edwards

Teck-Mui Hoo

David Mentzer

Adrienne R Diebold

Sean C Smyth

Michael R Chuba

Thomas R Palmer

Merryl J Miranda

Akira Murata

Andre T Sims

William Jospeh Novak

Paul W Kamienski

Rohit Garg

Bryan E Steuer

William Francis Heaney

Evelino A Ruibal

Jean-Philippe L Andre

Sara Katherine Green

Anastasios L Skoulidas

Ketih K Aldous

Iii William J Tracy

Systems and methods are provided for integration of use deasphalted resid as a feed for fuels and/or lubricant base stock production with use of the corresponding deasphalter rock for gasification to generate hydrogen and/or fuel for the fuels and/or lubricant production process. The integration can include using hydrogen generated during gasification as a fuel to provide heat for solvent processing and/or using the hydrogen for hydroprocessing of deasphalted oil.

Integrated resid deasphalting and gasification

Methods are provided for forming lubricant base stocks from feeds such as vacuum resid or other 510&#xb0; C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks that are resistant to haze formation.

Bright stock production from low severity resid deasphalting

Compositions are provided for lubricant base stocks produced from feeds such as vacuum resid or other 510&#xb0; C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks that are resistant to haze formation.

Bright stock production from deasphalted oil

Systems and methods are provided for activation of noble metal catalysts that are supported on siliceous supports. The activation method can include limiting the amount of water vapor pressure and/or the time of exposure to the water vapor pressure during heating of the catalyst at temperatures of 50&#xb0; C. or less. This can be achieved by introducing heated gas into multiple reactors of a multi-reactor system at the same time. A suitable system for introducing heated gas into multiple reactors can correspond to a system with multiple heated hydrogen lines for delivery of heated hydrogen to a plurality of reactors within a multi-reactor system.

Activation of noble metal catalysts on siliceous supports

Methods are provided for producing lubricant base stocks from deasphalted oils formed by sequential deasphalting. The deasphalted oil can be exposed a first deasphalting process using a first solvent that can provide a lower severity of deasphalting and a second deasphalting process using a second solvent that can provide a higher severity of deasphalting. This can result in formation of at least a deasphalted oil and a resin fraction. The resin fraction can represent a fraction that traditionally would have been included as part of a deasphalter rock fraction.

Sequential deasphalting for base stock production

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.

Block processing configurations for base stock production from deasphalted oil

Systems and methods are provided for catalytically dewaxing a diesel boiling range feed. In some aspects, catalytic dewaxing can be performed at low hydrogen treat gas rates and/or low hydrogen purity conditions. In other aspects, the systems and methods can allow for distillate dewaxing while reducing or minimizing the amount of equipment required.

Production of low cloud point distillate fuels

Methods are provided for dewaxing a distillate fuel boiling range feed to improve one or more cold flow properties of the distillate fuel feed, such as cloud point, where the distillate fuel feed is fractionated to produce both a jet fuel product and an arctic diesel fuel product. The decrease of cloud point is achieved by using a feedstock having a concentration of nitrogen of less than about 50 wppm and a concentration of sulfur of less than about 15 wppm. Further, the dewaxing catalyst may have a reduced content of hydrogenation metals, such as a content of Pt or Pd of from about 0.05 wt % to about 0.35 wt %. A distillate fuel feed can be dewaxed to achieve a desired cloud point differential using a reduced metals content dewaxing catalyst under the same or similar conditions to those required for a dewaxing catalyst with higher metals content.

Production of low cloud point diesel fuels and low freeze point jet fuels

Methods are provided for dewaxing a distillate fuel boiling range feed to improve one or more cold flow properties of the distillate fuel feed, such as cloud point, with reduced consumption of hydrogen during the dewaxing process. The reduced hydrogen consumption is achieved by using a dewaxing catalyst with a reduced content of hydrogenation metals, such as a content of Pt or Pd of from about 0.03 wt % to about 0.35 wt %. A distillate fuel feed can be dewaxed to achieve a desired cloud point differential using a reduced metals content dewaxing catalyst under the same or similar conditions to those required for a dewaxing catalyst with higher metals content.

A method for producing diesel fuel from biocomponent feeds includes hydrotreating the feed followed by catalytic dewaxing with a 1-D, 10 member ring molecular sieve containing catalyst. The hydrotreated feed may be cascaded directly to the dewaxing step, or the hydrotreated feed can undergo intermediate separation. The diesel fuel resulting from processing of the biocomponent feed exhibits superior cetane values.

Hydroprocessing of biodiesel fuels and blends

In a process for the catalytic conversion of organic oxygenates to hydrocarbons, a feed comprising at least one organic oxygenate is contacted with a zeolite catalyst under conditions effective to produce a hydrocarbon product comprising aromatics, olefins and paraffins. At least a fraction of the hydrocarbon product containing Chydrocarbons, including at least part of the olefins, is then contacted with hydrogen in the presence of a hydrogenation catalyst under conditions effective to saturate at least part of the olefins in the C-containing fraction and produce a hydrogenated effluent containing less than 1 wt % olefins. The hydrogenated effluent is useful as a diluent for heavy crude oils.

Conversion of organic oxygenates to hydrocarbons

Methods are provided for processing a gas oil boiling range feedstock, such as a vacuum gas oil, in a single reaction stage and/or without performing intermediate separations. The methods are suitable for forming lubricants and distillate fuels while reducing or minimizing the production of lower boiling products such as naphtha and light ends. The methods can provide desirable yields of distillate fuels and lubricant base oils without requiring separate catalyst beds or stages for dewaxing and hydrocracking. The methods are based in part on use of a dewaxing catalyst that is tolerant of sour processing environments while still providing desirable levels of activity for both feed conversion and feed isomerization.

Co-production of lubricants and distillate fuels

This invention relates to a process involving hydrocracking of a feedstream in which a converted fraction can exhibit relatively high distillate product yields and maintained or improved distillate fuel properties, while an unconverted fraction can exhibit improved properties particularly useful in the lubricant area. In this hydrocracking process, it can be advantageous for the yield of converted/unconverted product for gasoline fuel application to be reduced or minimized, relative to converted distillate fuel and unconverted lubricant. Catalysts and conditions can be chosen to assist in attaining, or to optimize, desirable product yields and/or properties.

Hydrocracking process selective for improved distillate and improved lube yield and properties

A method for producing diesel fuel from biocomponent feeds includes hydrotreating the feed followed by catalytic dewaxing with a ZSM-48 containing catalyst. The hydrotreated feed may be cascaded directly to the dewaxing step, or the hydrotreated feed can undergo intermediate separation. The diesel fuel resulting from processing of the biocomponent feed exhibits superior cetane values.

Methods are provided for liquid phase activation of dewaxing and/or hydrofinishing catalysts that include a molecular sieve or other acidic crystalline support. The methods are compatible with activating the catalysts as part of a catalyst system that also includes a hydrotreating catalyst.

Activation of dual catalyst systems

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Fairfax Station, VA, United States of America

Timothy Lee Hilbert