Patents by Inventor Federico Barrai
Federico Barrai 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: 11951463Abstract: Catalyst compositions comprising a zeolite and a mesoporous support or binder are disclosed. The mesoporous support or binder comprises a mesoporous metal oxide having a particle diameter of greater than or equal to 20 ?m at 50% of the cumulative pore size distribution (d50). Also disclosed are processes for producing a mono-alkylated aromatic compound (e.g., ethylbenzene or cumene) which exhibit improved yield of the mono-alkylated aromatic compound using alkylation catalysts comprising one or more of these catalyst compositions.Type: GrantFiled: March 19, 2018Date of Patent: April 9, 2024Assignee: ExxonMobil Engineering & Technology CompanyInventors: Matthew S. Ide, Brett T. Loveless, Doron Levin, William W. Lonergan, Matthew J. Vincent, Wei-Ping Tai, Federico Barrai
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Publication number: 20220401924Abstract: An active material useful in an oxidative dehydrogenation reactor system has an active phase, a support phase, and an intermediate composite phase. The active phase includes a transition metal oxide such as manganese oxide, which is reversibly oxidizable and/or reducible between oxidized and reduced states. The support phase includes an oxide of a IUPAC Group 2-14 element. The composite phase is a mixed metal oxide of the transition metal and the Group 2-14 element. The active phase can also include a promoter such as Na-W04 and/or a selectivity modifier such as A1 or ceria. Also, a reactor including the active material in a reactor, a method of making the active material, and a method of using the active material in a regenerative reaction process.Type: ApplicationFiled: July 30, 2020Publication date: December 22, 2022Inventors: Brian M. P. Weiss, Changmin Chun, Sophie Liu, Federico Barrai, Paul F. Keusenkothen, Zachary D. Young
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Publication number: 20220274085Abstract: A reverse flow reactor (RFR) and process having a forward reaction feed cycle, a reverse reaction feed cycle, and a reverse regeneration cycle. The heat convected in the forward feed cycle matches the heat convected in the reverse flow cycles. Compared to an RFR without the reverse feed cycle, the three-cycle RPR substantially reduces the regeneration air flow rate, associated compression requirements, and the overall reactor volume, that are required.Type: ApplicationFiled: July 30, 2020Publication date: September 1, 2022Inventors: Brian M. Weiss, Changmin Chun, Sophie Liu, Federico Barrai, Paul F. Keusenkothen, Zachary D. Young
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Patent number: 11292977Abstract: Methods are provided for processing deasphalted gas oils derived from thermally cracked resid fractions to form Group I, Group II, and/or Group III lubricant base oils. The yield of lubricant base oils (optionally also referred to as base stocks) can be increased by thermally cracking a resid fraction at an intermediate level of single pass severity relative to conventional methods. By performing thermal cracking to a partial level of conversion, compounds within a resid fraction that are beneficial for increasing both the viscosity and the viscosity index of a lubricant base oil can be retained, thus allowing for an improved yield of higher viscosity lubricant base oils from a thermally cracked resid fraction.Type: GrantFiled: October 9, 2020Date of Patent: April 5, 2022Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen H. Brown, Brenda A. Raich, Beatrice M. Gooding, Stephen M. Davis, Federico Barrai, Warren B. Ames, Keith K. Aldous
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Patent number: 11292973Abstract: Processes and systems for upgrading a hydrocarbon feed. The process can include feeding a hydrocarbon feed, catalyst particles, and molecular hydrogen (H2) into a separation zone. The hydrocarbon feed and H2 can be contacted in the presence of the catalyst particles under hydrotreating conditions in the separation zone that can include contacting under a total pressure of less than 3,500 kilopascals-gauge. The H2 can be fed into the separation zone at a rate of no greater than 270 cubic meters of H2 per cubic meter of the hydrocarbon feed, where the volume of H2 and hydrocarbon feed are based on a temperature of 25 C and a pressure of 101 kilopascals-absolute. A vapor phase hydrocarbon stream and a liquid phase hydrocarbon stream can be obtained from the separation zone. At least a portion of the vapor phase hydrocarbon stream can be fed into a pyrolysis reaction zone to produce a pyrolysis effluent.Type: GrantFiled: September 24, 2020Date of Patent: April 5, 2022Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ramanathan Sundararaman, James R. Lattner, Michael W. Weber, David T. Ferrughelli, Saurabh S. Maduskar, Federico Barrai, Jeevan S. Abichandani
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Patent number: 11286427Abstract: Reverse flow reactor (RFR) apparatuses exhibiting asymmetric feed profiles and improved purge mode efficiency, and methods of using same to transform a hydrocarbon feed into a pyrolysed hydrocarbon product are disclosed. The RFR apparatus includes an RFR body with a reaction zone having at least one bed. The RFR body has a central vertical axis and flanked by first and second void spaces. The method utilizes at least two oxygen-containing feeds, a combustion fuel feed, a purge feed, and a hydrocarbon pyrolysis feed. The RFR apparatus can cycle between an exothermic heating mode (heated to ?700° C.Type: GrantFiled: April 9, 2019Date of Patent: March 29, 2022Assignee: ExxonMobil Chemical Patents Inc.Inventors: Kevin B. Daly, Federico Barrai
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Patent number: 11279884Abstract: Reverse flow reactor (RFR) apparatuses exhibiting asymmetric feed profiles and improved flow distribution during heating mode and/or pyrolysis mode operation, and methods of using same to transform a hydrocarbon feed into a pyrolysed hydrocarbon product are disclosed. The RFR apparatus includes an RFR body with a reaction zone having at least one bed. The RFR body has a central vertical axis and is flanked by first and second void spaces. The method utilizes at least two oxygen-containing feeds, a combustion fuel feed, a purge feed, and a hydrocarbon pyrolysis feed. The RFR apparatus can cycle between an exothermic heating mode (heated to ?700° C.Type: GrantFiled: April 9, 2019Date of Patent: March 22, 2022Assignee: ExxonMobil Chemical Patents Inc.Inventors: Kevin B. Daly, Federico Barrai
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Patent number: 11130916Abstract: The invention relates to approach temperatures and approach temperature ranges that are beneficial in operating a pyrolysis reactor, to pyrolysis reactors exhibiting a beneficial approach temperature, to processes for carrying out hydrocarbon pyrolysis in a pyrolysis reactor having a beneficial approach temperature. The pyrolysis reactor can be, e.g., a reverse-flow pyrolysis reactor, such as a regenerative reverse-flow pyrolysis reactor.Type: GrantFiled: August 15, 2017Date of Patent: September 28, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Federico Barrai, Elizabeth G. Mahoney, James R. Lattner, Thomas W. Pavia, John S. Coleman
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Patent number: 11078130Abstract: The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area?55%. The refractory can include non-oxide ceramic.Type: GrantFiled: January 23, 2020Date of Patent: August 3, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Changmin Chun, Dhaval A. Bhandari, Federico Barrai
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Publication number: 20210139788Abstract: Reverse flow reactor (RFR) apparatuses exhibiting asymmetric feed profiles and improved flow distribution during heating mode and/or pyrolysis mode operation, and methods of using same to transform a hydrocarbon feed into a pyrolysed hydrocarbon product are disclosed. The RFR apparatus includes an RFR body with a reaction zone having at least one bed. The RFR body has a central vertical axis and is flanked by first and second void spaces. The method utilizes at least two oxygen-containing feeds, a combustion fuel feed, a purge feed, and a hydrocarbon pyrolysis feed. The RFR apparatus can cycle between an exothermic heating mode (heated to ?700° C.Type: ApplicationFiled: April 9, 2019Publication date: May 13, 2021Inventors: Kevin B. Daly, Federico Barrai
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Publication number: 20210139789Abstract: Reverse flow reactor (RFR) apparatuses exhibiting asymmetric feed profiles and improved purge mode efficiency, and methods of using same to transform a hydrocarbon feed into a pyrolysed hydrocarbon product are disclosed. The RFR apparatus includes an RFR body with a reaction zone having at least one bed. The RFR body has a central vertical axis and flanked by first and second void spaces. The method utilizes at least two oxygen-containing feeds, a combustion fuel feed, a purge feed, and a hydrocarbon pyrolysis feed. The RFR apparatus can cycle between an exothermic heating mode (heated to ?700° C.Type: ApplicationFiled: April 9, 2019Publication date: May 13, 2021Inventors: Kevin B. Daly, Federico Barrai
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Publication number: 20210130711Abstract: Processes and systems for upgrading a hydrocarbon feed. The process can include feeding a hydrocarbon feed, catalyst particles, and molecular hydrogen (H2) into a separation zone. The hydrocarbon feed and H2 can be contacted in the presence of the catalyst particles under hydrotreating conditions in the separation zone that can include contacting under a total pressure of less than 3,500 kilopascals-gauge. The H2 can be fed into the separation zone at a rate of no greater than 270 cubic meters of H2 per cubic meter of the hydrocarbon feed, where the volume of H2 and hydrocarbon feed are based on a temperature of 25 C and a pressure of 101 kilopascals-absolute. A vapor phase hydrocarbon stream and a liquid phase hydrocarbon stream can be obtained from the separation zone. At least a portion of the vapor phase hydrocarbon stream can be fed into a pyrolysis reaction zone to produce a pyrolysis effluent.Type: ApplicationFiled: September 24, 2020Publication date: May 6, 2021Inventors: Ramanathan Sundararaman, James R. Lattner, Michael W. Weber, David T. Ferrughelli, Saurabh S. Maduskar, Federico Barrai, Jeevan S. Abichandani
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Publication number: 20210024846Abstract: Methods are provided for processing deasphalted gas oils derived from thermally cracked resid fractions to form Group I, Group II, and/or Group III lubricant base oils. The yield of lubricant base oils (optionally also referred to as base stocks) can be increased by thermally cracking a resid fraction at an intermediate level of single pass severity relative to conventional methods. By performing thermal cracking to a partial level of conversion, compounds within a resid fraction that are beneficial for increasing both the viscosity and the viscosity index of a lubricant base oil can be retained, thus allowing for an improved yield of higher viscosity lubricant base oils from a thermally cracked resid fraction.Type: ApplicationFiled: October 9, 2020Publication date: January 28, 2021Inventors: Stephen H. Brown, Brenda A. Raich, Beatrice M. Gooding, Stephen M. Davis, Federico Barrai, Warren B. Ames, Keith K. Aldous
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Patent number: 10899970Abstract: The invention relates to the compression of a pyrolysis product to facilitate light olefin separation. The pyrolysis product is produced in a pyrolysis reaction. A power generator produces a first shaft power and a second shaft power. The pyrolysis product is compressed using at least part of the first shaft power and at least part of the second shaft power.Type: GrantFiled: August 15, 2017Date of Patent: January 26, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Thomas W. Pavia, Federico Barrai, Frank Hershkowitz, Gregory E. Yeo
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Publication number: 20200376471Abstract: Catalyst compositions comprising a zeolite and a mesoporous support or binder are disclosed. The mesoporous support or binder comprises a mesoporous metal oxide having a particle diameter of greater than or equal to 20 ?m at 50% of the cumulative pore size distribution (d50). Also disclosed are processes for producing a mono-alkylated aromatic compound (e.g., ethylbenzene or cumene) which exhibit improved yield of the mono-alkylated aromatic compound using alkylation catalysts comprising one or more of these catalyst compositions.Type: ApplicationFiled: March 19, 2018Publication date: December 3, 2020Inventors: Matthew S. Ide, Brett T. Loveless, Doron Levin, William W. Lonergan, Matthew J. Vincent, Wei-Ping Tai, Federico Barrai
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Patent number: 10836965Abstract: Methods of transforming a hydrocarbon feedstream into an aromatization product in a multi-stage reverse flow reactor (RFR) apparatus are disclosed. The methods include at least two reaction stages in series, at least one being a pyrolysis stage and at least another being a catalytic aromatization stage. Using a highly saturated hydrocarbon feedstream the pyrolysis stage focuses on desaturation, while the catalytic aromatization stage focuses on aromatization. The catalytic aromatization stage contains a aromatization catalyst that can include substantially no magnesium, scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, silver, gold, gallium, indium, tin, lanthanides, or actinides, or, in some cases, substantially no added active metals at all.Type: GrantFiled: April 12, 2019Date of Patent: November 17, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Mayank Shekhar, James R. Lattner, Federico Barrai, Brian M. Weiss, Dhaval A. Bhandari, Joshua W. Allen
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Patent number: 10711203Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon gas upgrading. The pyrolysis is carried out in a reactor which includes at least one thermal mass having an open frontal area ?55%.Type: GrantFiled: August 15, 2017Date of Patent: July 14, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Federico Barrai, Elizabeth G. Mahoney, John S. Coleman, Dhaval A. Bhandari, Brian M. Weiss, Changmin Chun, Frank Hershkowitz
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Publication number: 20200181497Abstract: A method for producing pitch can include: hydroprocessing a challenged feed from a refinery operation to produce a hydroprocessed product; distilling the hydroprocessed product to yield one or more upgraded fractions and a resid fraction; and solvent deasphalting the resid fraction to yield a deasphalted oil stream and a hydroprocessed pitch stream. The resultant pitch can have a micro carbon residue (MCR) of 50 wt % or greater, a solubility in toluene of 95 wt % or greater, and a softening point of 200° C. or less. The pitch can optionally be fluxed with a fluxing solvent.Type: ApplicationFiled: December 9, 2019Publication date: June 11, 2020Inventors: Stephen H. Brown, G. Alan Vaughan, Patrick L. Hanks, Keith K. Aldous, Warren B. Ames, Federico Barrai, Samia Ilias, Randolph J. Smiley, David C. Boyer
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Patent number: 10669488Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon upgrading.Type: GrantFiled: August 15, 2017Date of Patent: June 2, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Federico Barrai, James R. Lattner, Frank Hershkowitz, Elizabeth G. Mahoney
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Patent number: 10662130Abstract: This disclosure relates to processes, compositions, and systems useful for the oxydehydrogenation of alkanes to form olefins (e.g., for the conversion of ethane to ethylene). The processes use an oxygen transfer agent and may be carried out in any suitable reactor, including a reverse flow reactor, a circulating fluid bed reactor, or a cyclic co-flow reactor.Type: GrantFiled: August 13, 2018Date of Patent: May 26, 2020Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Brian M. Weiss, ChangMin Chun, Dhaval A. Bhandari, Federico Barrai, Sophie Liu