Patents by Inventor Ujjal K. Mukherjee
Ujjal K. Mukherjee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9162938Abstract: A process for converting triacylglycerides-containing oils into crude oil precursors and/or distillate hydrocarbon fuels is disclosed. The process may include: reacting a triacylglycerides-containing oil-water-hydrogen mixture at a temperature in the range from about 250° C. to about 525° C. and a pressure greater than about 75 bar to convert at least a portion of the triacylglycerides and recovering a reaction effluent comprising water and one or more of isoolefins, isoparaffins, cycloolefins, cycloparaffins, and aromatics; hydrotreating the reaction effluent to form a hydrotreated effluent.Type: GrantFiled: December 11, 2012Date of Patent: October 20, 2015Assignees: Chevron Lummus Global, LLC, Applied Research Associates, Inc.Inventors: Ujjal K. Mukherjee, Arun Arora, Marvin I. Greene, Edward Coppola, Charles Red, Jr., J. Steven Baxley, Sanjay Nana, Jeffrey Rine
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Publication number: 20150217251Abstract: A process for upgrading residuum hydrocarbons including: feeding pitch, hydrogen, and a partially spent catalyst recovered from a hydrocracking reactor to an ebullated bed pitch hydrocracking reactor; contacting the pitch, hydrogen, and the catalyst in the ebullated bed pitch hydrocracking reactor at reaction conditions of temperature and pressure sufficient to convert at least a portion of the pitch to distillate hydrocarbons; and separating the distillate hydrocarbons from the catalyst. In some embodiments, the process may include selecting the ebullated bed pitch hydrocracking reactor reaction conditions to be at or below the level where sediment formation would otherwise become excessive and prevent continuity of operations.Type: ApplicationFiled: April 14, 2015Publication date: August 6, 2015Inventors: Ujjal K. Mukherjee, Mario C. Baldassari, Marvin I. Greene
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Patent number: 9080113Abstract: Integrated processes for upgrading crude shale-derived oils, such as those produced by oil shale retorting or by in situ extraction or combinations thereof. Processes disclosed provide for a split-flow processing scheme to upgrade whole shale oil. The split flow concepts described herein, i.e., naphtha and kerosene hydrotreating in one or more stages and gas oil hydrotreating in one or more stages, requires additional equipment as compared to the alternative approach of whole oil hydrotreating. While contrary to conventional wisdom as requiring more capital equipment to achieve the same final product specifications, the operating efficiency vis a vis on-stream time efficiency and product quality resulting from the split flow concept far exceed in value the somewhat incrementally higher capital expenditure costs.Type: GrantFiled: February 1, 2013Date of Patent: July 14, 2015Assignee: Lummus Technology Inc.Inventors: Marvin I. Greene, Ujjal K. Mukherjee, Arun Arora
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Patent number: 9028674Abstract: A process for upgrading residuum hydrocarbons including: feeding pitch, hydrogen, and a partially spent catalyst recovered from a hydrocracking reactor to an ebullated bed pitch hydrocracking reactor; contacting the pitch, hydrogen, and the catalyst in the ebullated bed pitch hydrocracking reactor at reaction conditions of temperature and pressure sufficient to convert at least a portion of the pitch to distillate hydrocarbons; and separating the distillate hydrocarbons from the catalyst. In some embodiments, the process may include selecting the ebullated bed pitch hydrocracking reactor reaction conditions to be at or below the level where sediment formation would otherwise become excessive and prevent continuity of operations.Type: GrantFiled: January 17, 2013Date of Patent: May 12, 2015Assignee: Lummus Technology Inc.Inventors: Ujjal K. Mukherjee, Mario C. Baldassari, Marvin I. Greene
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Publication number: 20140262940Abstract: A process for upgrading residuum hydrocarbons is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions and the vacuum residuum fraction in a common fractionation system.Type: ApplicationFiled: March 5, 2014Publication date: September 18, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
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Publication number: 20140262942Abstract: Embodiments herein relate to a process flow scheme for the processing of gas oils and especially reactive gas oils produced by thermal cracking of residua using a split flow concept. The split flow concepts disclosed allow optimization of the hydrocracking reactor seventies and thereby take advantage of the different reactivities of thermally cracked gas oils versus those of virgin gas oils. This results in a lower cost facility for producing base oils as well as diesel, kerosene and gasoline fuels while achieving high conversions and high catalyst lives.Type: ApplicationFiled: February 14, 2014Publication date: September 18, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Arun Arora, Ujjal K. Mukherjee, Wai Seung Louie, Marvin I. Greene
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Publication number: 20140275676Abstract: A process for upgrading residuum hydrocarbon feedstocks that may include: contacting a residuum hydrocarbon and hydrogen with a hydroconversion catalyst in a residuum hydroconversion reactor system; recovering an effluent from the residuum hydroconversion reactor system; separating the effluent to recover two or more hydrocarbon fractions including at least a vacuum residuum fraction and a heavy vacuum gas oil fraction; combining at least a portion of the heavy vacuum gas oil fraction and at least a portion of the vacuum residuum fraction to form a mixed heavy hydrocarbon fraction; feeding at least a portion of the mixed heavy hydrocarbon fraction to a coker; operating the coker at conditions to produce anode grade green coke and distillate hydrocarbons; recovering the distillate hydrocarbons from the coker; fractionating the distillate hydrocarbons to recover hydrocarbon fractions including a light distillates fraction, a heavy coker gas oil fraction, and a coker recycle fraction.Type: ApplicationFiled: February 19, 2014Publication date: September 18, 2014Applicant: Lummus Technology Inc.Inventors: Gary Sieli, Ahmad Faegh, Ujjal K. Mukherjee, Mario C. Baldassari, Marvin I. Greene
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Publication number: 20140275677Abstract: A process for upgrading residuum hydrocarbons is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions and the vacuum residuum fraction in a common fractionation system.Type: ApplicationFiled: February 20, 2014Publication date: September 18, 2014Applicant: Lummus Technology Inc.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
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Publication number: 20140221709Abstract: A process for upgrading residuum hydrocarbons is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions and the vacuum residuum fraction in a common fractionation system.Type: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
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Publication number: 20140221712Abstract: Integrated processes for upgrading crude shale-derived oils, such as those produced by oil shale retorting or by in situ extraction or combinations thereof. Processes disclosed provide for a split-flow processing scheme to upgrade whole shale oil. The split flow concepts described herein, i.e., naphtha and kerosene hydrotreating in one or more stages and gas oil hydrotreating in one or more stages, requires additional equipment as compared to the alternative approach of whole oil hydrotreating. While contrary to conventional wisdom as requiring more capital equipment to achieve the same final product specifications, the operating efficiency vis a vis on-stream time efficiency and product quality resulting from the split flow concept far exceed in value the somewhat incrementally higher capital expenditure costs.Type: ApplicationFiled: February 1, 2013Publication date: August 7, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Marvin I. Greene, Ujjal K. Mukherjee, Arun Arora
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Publication number: 20140221713Abstract: A process for upgrading residuum hydrocarbons and decreasing tendency of the resulting products toward asphaltenic sediment formation in downstream processes is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a hydroconversion catalyst in a hydrocracking reaction zone to convert at least a portion of the residuum hydrocarbon fraction to lighter hydrocarbons; recovering an effluent from the hydrocracking reaction zone; contacting hydrogen and at least a portion of the effluent with a resid hydrotreating catalyst; and separating the effluent to recover two or more hydrocarbon fractions.Type: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
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Publication number: 20140197069Abstract: A process for upgrading residuum hydrocarbons including: feeding pitch, hydrogen, and a partially spent catalyst recovered from a hydrocracking reactor to an ebullated bed pitch hydrocracking reactor; contacting the pitch, hydrogen, and the catalyst in the ebullated bed pitch hydrocracking reactor at reaction conditions of temperature and pressure sufficient to convert at least a portion of the pitch to distillate hydrocarbons; and separating the distillate hydrocarbons from the catalyst. In some embodiments, the process may include selecting the ebullated bed pitch hydrocracking reactor reaction conditions to be at or below the level where sediment formation would otherwise become excessive and prevent continuity of operations.Type: ApplicationFiled: January 17, 2013Publication date: July 17, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Ujjal K. Mukherjee, Mario C. Baldassari, Marvin I. Greene
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Publication number: 20140163272Abstract: A process for converting triacylglycerides-containing oils into crude oil precursors and/or distillate hydrocarbon fuels is disclosed. The process may include: reacting a triacylglycerides-containing oil-water-hydrogen mixture at a temperature in the range from about 250° C. to about 525° C. and a pressure greater than about 75 bar to convert at least a portion of the triacylglycerides and recovering a reaction effluent comprising water and one or more of isoolefins, isoparaffins, cycloolefins, cycloparaffins, and aromatics; hydrotreating the reaction effluent to form a hydrotreated effluent.Type: ApplicationFiled: December 11, 2012Publication date: June 12, 2014Inventors: Ujjal K. Mukherjee, Arun Arora, Marvin I. Greene, Edward Coppola, Chuck Red, J. Steven Baxley, Sanjay Nana, Jeffrey Rine
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Publication number: 20140034549Abstract: A process for upgrading residuum hydrocarbons and decreasing tendency of the resulting products toward asphaltenic sediment formation in downstream processes is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a hydroconversion catalyst in a hydrocracking reaction zone to convert at least a portion of the residuum hydrocarbon fraction to lighter hydrocarbons; recovering an effluent from the hydrocracking reaction zone; contacting hydrogen and at least a portion of the effluent with a resid hydrotreating catalyst; and separating the effluent to recover two or more hydrocarbon fractions.Type: ApplicationFiled: August 3, 2012Publication date: February 6, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Ujjal K. Mukherjee, Mario C. Baldassari
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Patent number: 8591725Abstract: A method for selecting a solvent or mixture of solvents useful for mitigating deposit formation, cleaning existing deposits, and/or decreasing the rate of deposit formation is disclosed. Decreasing the rate at which deposits may form and/or increasing the rate at which deposits may be removed can dramatically improve process economics (e.g., decreasing down time as a result of deposit formation). In one aspect, embodiments disclosed herein relate to a process for dispersing foulants in a hydrocarbon stream, including the steps of: determining a nature of foulants in a hydrocarbon stream; selecting a solvent or a mixture of solvents suitable to disperse the foulants based upon the determined nature; and contacting the foulants with the selected solvent or mixture of solvents.Type: GrantFiled: April 9, 2010Date of Patent: November 26, 2013Assignee: Lummus Technology Inc.Inventors: Kandasamy Meenakshi Sundaram, Ujjal K. Mukherjee, Ronald M. Venner
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Patent number: 8287720Abstract: Processes for upgrading resid hydrocarbon feeds are disclosed. The upgrading processes may include: hydrocracking a resid in a first reaction stage to form a first stage effluent; hydrocracking a deasphalted oil fraction in a second reaction stage to form a second stage effluent; fractionating the first stage effluent and the second stage effluent to recover at least one distillate hydrocarbon fraction and a resid hydrocarbon fraction; feeding the resid hydrocarbon fraction to a solvent deasphalting unit to provide an asphaltene fraction and the deasphalted oil fraction.Type: GrantFiled: June 23, 2009Date of Patent: October 16, 2012Assignee: Lummus Technology Inc.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Avinash Gupta
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Publication number: 20120241357Abstract: Processes for upgrading resid hydrocarbon feeds are disclosed. The upgrading processes may include: hydrocracking a resid in a first reaction stage to form a first stage effluent; hydrocracking a deasphalted oil fraction in a second reaction stage to form a second stage effluent; fractionating the first stage effluent and the second stage effluent to recover at least one distillate hydrocarbon fraction and a resid hydrocarbon fraction; feeding the resid hydrocarbon fraction to a solvent deasphalting unit to provide an asphaltene fraction and the deasphalted oil fraction.Type: ApplicationFiled: June 7, 2012Publication date: September 27, 2012Applicant: LUMMUS TECHNOLOGY INC.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Avinash Gupta
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Publication number: 20110247967Abstract: A method for selecting a solvent or mixture of solvents useful for mitigating deposit formation, cleaning existing deposits, and/or decreasing the rate of deposit formation is disclosed. Decreasing the rate at which deposits may form and/or increasing the rate at which deposits may be removed can dramatically improve process economics (e.g., decreasing down time as a result of deposit formation). In one aspect, embodiments disclosed herein relate to a process for dispersing foulants in a hydrocarbon stream, including the steps of: determining a nature of foulants in a hydrocarbon stream; selecting a solvent or a mixture of solvents suitable to disperse the foulants based upon the determined nature; and contacting the foulants with the selected solvent or mixture of solvents.Type: ApplicationFiled: April 9, 2010Publication date: October 13, 2011Applicant: LUMMUS TECHNOLOGY INC.Inventors: Kandasamy Meenakshi Sundaram, Ujjal K. Mukherjee, Ronald M. Venner
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Publication number: 20110017641Abstract: A hydroconversion process is disclosed, including contacting of hydrogen and a residuum hydrocarbon with a pre-conditioned and at least partially sulfided hydroconversion catalyst for converting at least a portion of the residuum hydrocarbon into at least one of a hydrotreated product and a hydrocracked product.Type: ApplicationFiled: July 24, 2009Publication date: January 27, 2011Applicant: LUMMUS TECHNOLOGY INC.Inventors: Avinash Gupta, Mario C. Baldassari, Ujjal K. Mukherjee
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Publication number: 20100320122Abstract: Processes for upgrading resid hydrocarbon feeds are disclosed. The upgrading processes may include: hydrocracking a resid in a first reaction stage to form a first stage effluent; hydrocracking a deasphalted oil fraction in a second reaction stage to form a second stage effluent; fractionating the first stage effluent and the second stage effluent to recover at least one distillate hydrocarbon fraction and a resid hydrocarbon fraction; feeding the resid hydrocarbon fraction to a solvent deasphalting unit to provide an asphaltene fraction and the deasphalted oil fraction.Type: ApplicationFiled: June 23, 2009Publication date: December 23, 2010Applicant: LUMMUS TECHNOLOGY INC.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Avinash Gupta