Patents by Inventor Brett T. Loveless
Brett T. Loveless 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: 11986807Abstract: Catalyst composition which comprises a first zeolite having a BEA* framework type and a second zeolite having a MOR framework type and a mesopore surface area of greater than 30 m2/g is disclosed. These catalyst compositions are used to remove catalyst poisons from untreated feed streams having one or more impurities which cause deactivation of the downstream catalysts employed in hydrocarbon conversion processes, such as those that produce mono-alkylated aromatic compounds.Type: GrantFiled: April 12, 2023Date of Patent: May 21, 2024Assignee: ExxonMobil Engineering & Technology CompanyInventors: Matthew S. Ide, Doron Levin, Wenyih F. Lai, Ivy D. Johnson, Scott J. Weigel, Brett T. Loveless
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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: 20230249167Abstract: Catalyst composition which comprises a first zeolite having a BEA* framework type and a second zeolite having a MOR framework type and a mesopore surface area of greater than 30 m2/g is disclosed. These catalyst compositions are used to remove catalyst poisons from untreated feed streams having one or more impurities which cause deactivation of the downstream catalysts employed in hydrocarbon conversion processes, such as those that produce mono-alkylated aromatic compounds.Type: ApplicationFiled: April 12, 2023Publication date: August 10, 2023Inventors: Matthew S. Ide, Doron Levin, Wenyih F. Lai, Ivy D. Johnson, Scott J. Weigel, Brett T. Loveless
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Patent number: 11654423Abstract: Catalyst composition which comprises a first zeolite having a BEA* framework type and a second zeolite having a MOR framework type and a mesopore surface area of greater than 30 m2/g is disclosed. These catalyst compositions are used to remove catalyst poisons from untreated feed streams having one or more impurities which cause deactivation of the downstream catalysts employed in hydrocarbon conversion processes, such as those that produce mono-alkylated aromatic compounds.Type: GrantFiled: February 7, 2018Date of Patent: May 23, 2023Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew S. Ide, Doron Levin, Wenyih F. Lai, Ivy D. Johnson, Scott J. Weigel, Brett T. Loveless
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Patent number: 11230515Abstract: Methods for removing impurities from a hydrocarbon stream using a guard bed material are disclosed. The guard bed material includes compositions which comprises a zeolite and a mesoporous support or binder. The zeolite has a Constraint Index of less than 3. 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), a pore volume of less than 1 cc/g, and an alumina content of greater than 75%, by weight. Also disclosed are processes for producing mono-alkylated aromatic compounds (e.g., ethylbenzene or cumene) using impure feed streams that are treated by the disclosed methods to remove impurities which act as catalyst poisons to downstream alkylation and/or transalkylation catalysts.Type: GrantFiled: March 19, 2018Date of Patent: January 25, 2022Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew S. Ide, Doron Levin, Scott J. Weigel, Brett T. Loveless, Jean W. Beeckman
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Publication number: 20210047249Abstract: Systems and methods are provided for an improved transalkylation process that better tolerates the presence of C10+ aromatics and may be conducted substantially in the liquid phase. The transalkylation feedstock may comprise alkyl-substituted benzenes and naphthalene and the transalkylation effluent comprises alkyl-substituted naphthalene and benzene, toluene, and/or xylenes.Type: ApplicationFiled: February 10, 2017Publication date: February 18, 2021Inventors: Tan-Jen Chen, Wenyih F. Lai, Brett T. Loveless, Matthew S. Ide, Jeevan S. Abichandani
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Publication number: 20200385322Abstract: The present disclosure relates to a process for producing a mono-alkylated aromatic compound, such as, for example, ethylbenzene or cumene, in which an alkylatable aromatic compound stream, such as, for example, benzene, and an alkylation agent stream, such as, for example, poly-ethylbenzene or poly-isopropylbenzene, are contacted in the presence of a transalkylation catalyst and under at least partial liquid phase transalkylation conditions. The transalkylation catalyst comprises a zeolite having a framework structure selected from the group consisting of FAU, BEA*, MOR, MWW and mixtures thereof. The zeolite has a silica-alumina molar ratio in a range of 10 to 15. The transalkylation catalyst composition has an external surface area/volume ratio in the range of 30 cm?1 to 85 cm?1.Type: ApplicationFiled: December 15, 2017Publication date: December 10, 2020Inventors: Brett T. Loveless, Jean W. Beeckman, Christopher G. Oliveri, Scott J. Weigel, Matthew S. Ide, Theresa A. Baumrucker
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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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Publication number: 20200377431Abstract: Methods for removing impurities from a hydrocarbon stream using a guard bed material are disclosed. The guard bed material includes compositions which comprises a zeolite and a mesoporous support or binder. The zeolite has a Constraint Index of less than 3. 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), a pore volume of less than 1 cc/g, and an alumina content of greater than 75%, by weight. Also disclosed are processes for producing mono-alkylated aromatic compounds (e.g., ethylbenzene or cumene) using impure feed streams that are treated by the disclosed methods to remove impurities which act as catalyst poisons to downstream alkylation and/or transalkylation catalysts.Type: ApplicationFiled: March 19, 2018Publication date: December 3, 2020Inventors: Matthew S. Ide, Doron Levin, Scott J. Weigei, Brett T. Loveless, Jean W. Beeckman
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Patent number: 10821425Abstract: The present disclosure relates to a process for producing a mono-alkylated aromatic compound using a treated catalyst made by a method of this invention is disclosed. The method comprises the steps of heating an untreated catalyst in the presence of a gaseous stream having a dew point temperature less than about 5° C. to form a treated catalyst. The treatment is effective to improve the activity and selectivity of the catalyst.Type: GrantFiled: April 13, 2017Date of Patent: November 3, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew S. Ide, Brett T. Loveless, Doron Levin, Tilman W. Beutel
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Patent number: 10766834Abstract: Disclosed are selectivated transalkylation catalyst compositions and methods of making the same. The selectivated transalkylation catalyst compositions have a zeolite framework structure of MWW, FAU, BEA*, or MOR, or mixtures thereof, and are selectivated with a selectivating solution. The selectivating solution includes a dissolved ion of at least one element in Group 1, Group 2, Group 15, Group 16, or Group 17 of the Periodic Table. Also disclosed are processes of producing ethylbenzene and cumene using the selectivated transalkylation catalyst compositions.Type: GrantFiled: February 19, 2018Date of Patent: September 8, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Brett T. Loveless, Daniel J. Benedict, Kathleen M. Keville, Juan D. Henao, Matthew S. Ide
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Patent number: 10696608Abstract: In a process for producing paraxylene, a hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a Constraint Index ?5, and the alkylation conditions comprise a temperature less than 500° C. At least part of the alkylated product is supplied to a paraxylene recovery unit to recover paraxylene and produce a paraxylene-depleted stream, which is then contacted with a xylene isomerization catalyst under conditions effective to isomerize xylenes in the paraxylene-depleted stream and produce an isomerized stream having a higher concentration of paraxylene than the paraxylene-depleted stream. At least part of the isomerized stream is then recycled to the paraxylene recovery unit to recover the paraxylene therein.Type: GrantFiled: September 12, 2017Date of Patent: June 30, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Todd E. Detjen, Tan-Jen Chen, Brett T. Loveless, Robert G. Tinger
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Publication number: 20200179913Abstract: Catalyst composition which comprises a first zeolite having a BEA* framework type and a second zeolite having a MOR framework type and a mesopore surface area of greater than 30 m2/g is disclosed. These catalyst compositions are used to remove catalyst poisons from untreated feed streams having one or more impurities which cause deactivation of the downstream catalysts employed in hydrocarbon conversion processes, such as those that produce mono-alkylated aromatic compounds.Type: ApplicationFiled: February 7, 2018Publication date: June 11, 2020Inventors: Matthew S. Ide, Doron Levin, Wenyih F. Lai, Ivy D. Johnson, Scott J. Weigel, Brett T. Loveless
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Publication number: 20190314794Abstract: The present disclosure relates to a process for producing a mono-alkylated aromatic compound using a treated catalyst made by a method of this invention is disclosed. The method comprises the steps of heating an untreated catalyst in the presence of a gaseous stream having a dew point temperature less than about 5° C. to form a treated catalyst. The treatment is effective to improve the activity and selectivity of the catalyst.Type: ApplicationFiled: April 13, 2017Publication date: October 17, 2019Inventors: Matthew S. Ide, Brett T. Loveless, Doron Levin, Tilman W. Beutel
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Publication number: 20190218159Abstract: In a process for producing paraxylene, a hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a Constraint Index ?5, and the alkylation conditions comprise a temperature less than 500° C. At least part of the alkylated product is supplied to a paraxylene recovery unit to recover paraxylene and produce a paraxylene-depleted stream, which is then contacted with a xylene isomerization catalyst under conditions effective to isomerize xylenes in the paraxylene-depleted stream and produce an isomerized stream having a higher concentration of paraxylene than the paraxylene-depleted stream. At least part of the isomerized stream is then recycled to the paraxylene recovery unit to recover the paraxylene therein.Type: ApplicationFiled: September 12, 2017Publication date: July 18, 2019Inventors: Todd E. Detjen, Tan-Jen Chen, Brett T. Loveless, Robert G. Tinger
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Publication number: 20180251413Abstract: Disclosed are selectivated transalkylation catalyst compositions and methods of making the same. The selectivated transalkylation catalyst compositions have a zeolite framework structure of MWW, FAU, BEA*, or MOR, or mixtures thereof, and are selectivated with a selectivating solution. The selectivating solution includes a dissolved ion of at least one element in Group 1, Group 2, Group 15, Group 16, or Group 17 of the Periodic Table. Also disclosed are processes of producing ethylbenzene and cumene using the selectivated transalkylation catalyst compositions.Type: ApplicationFiled: February 19, 2018Publication date: September 6, 2018Inventors: Brett T. Loveless, Daniel J. Benedict, Kathleen M. Keville, Juan D. Henao, Matthew S. Ide
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Publication number: 20180170825Abstract: Processes and reaction systems for low pressure oligomerization of olefins to produce distillate boiling range products using zeolite catalysts are provided herein.Type: ApplicationFiled: December 4, 2017Publication date: June 21, 2018Inventors: Samia ILIAS, Brett T. Loveless, Stephen J. McCarthy, Brandon J. O'NEILL
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Patent number: 9809505Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.Type: GrantFiled: July 11, 2017Date of Patent: November 7, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: John S. Buchanan, Stephen H. Brown, Lorenzo C. DeCaul, Brett T. Loveless, Rohit Vijay, Stephen J. McCarthy, Michel Daage, Mayank Shekhar
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Publication number: 20170305810Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.Type: ApplicationFiled: July 11, 2017Publication date: October 26, 2017Applicant: ExxonMobil Chemical Patents Inc.Inventors: John S. Buchanan, Stephen H. Brown, Lorenzo C. DeCaul, Brett T. Loveless, Rohit Vijay, Stephen J. McCarthy, Michel Daage, Mayank Shekhar
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Patent number: 9732013Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.Type: GrantFiled: August 18, 2015Date of Patent: August 15, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: John S. Buchanan, Stephen H. Brown, Lorenzo C. DeCaul, Brett T. Loveless, Rohit Vijay, Stephen J. McCarthy, Michel Daage, Mayank Shekhar