Patents by Inventor Nicolas P. Coute
Nicolas P. Coute 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: 8921609Abstract: In a process for oxidizing a hydrocarbon, the hydrocarbon is contacted with oxygen in the presence of an N-substituted cyclic imide and under conditions to oxidize the hydrocarbon to produce an oxidized hydrocarbon product and at least one decomposition product of the N-substituted cyclic imide. At least a portion of the at least one decomposition product is contacted with hydroxylamine or a salt thereof under conditions to convert the at least one decomposition product back to said imide.Type: GrantFiled: September 30, 2010Date of Patent: December 30, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jihad M. Dakka, Stephen Zushma, Nicolas P. Coute, Francisco M. Benitez, Edmund J. Mozeleski
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Publication number: 20120215025Abstract: In a process for oxidizing a hydrocarbon, the hydrocarbon is contacted with oxygen in the presence of an N-substituted cyclic imide and under conditions to oxidize the hydrocarbon to produce an oxidized hydrocarbon product and at least one decomposition product of the N-substituted cyclic imide. At least a portion of the at least one decomposition product is contacted with hydroxylamine or a salt thereof under conditions to convert the at least one decomposition product back to said imide.Type: ApplicationFiled: September 30, 2010Publication date: August 23, 2012Applicant: EXXONMOBIL CHEMICAL PATENTS INC.Inventors: Jihad M. Dakka, Stephen Zushma, Nicolas P. Coute, Francisco M. Benitez, Edmund J. Mozeleski
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Patent number: 8097216Abstract: A process and apparatus for fluidizing a population of catalyst particles having a low catalyst fines content includes a fluidized bed reactor which includes a plurality of catalyst particles in the reactor wherein the catalyst particles having a d2 value of greater than about 40 microns. The catalyst particles are contacted with a fluidizing medium under conditions to fluidize the particles, the reactor includes a continuous reaction zone and separation zone and the fluidized of the catalyst particles are situated within the reaction and both the reaction zone and the separation zone include obstructing members which obstruct the flow of particles such that the catalyst particles can be maintained at an axial gas Peclet number from about 10 to about 20.Type: GrantFiled: October 5, 2010Date of Patent: January 17, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: James H. Beech, Jr., Nicolas P. Coute, Jeffrey S. Smith, Michael Peter Nicoletti
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Publication number: 20110020186Abstract: The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of catalyst particles in the reactor, wherein the catalyst particles have a d2 value of greater than about 40 microns. The catalyst particles are contacted with a fluidizing medium under conditions effective to cause the catalyst particles to behave in a fluidized manner and form a fluidized bed. The particles are contacted with one or more primary obstructing members while in the fluidized bed. By fluidizing the catalyst particles in this manner, the catalyst particles can be maintained at an axial gas Peclet number of from about 10 to about 20.Type: ApplicationFiled: October 5, 2010Publication date: January 27, 2011Inventors: James H. Beech, JR., Nicolas P. Coute, Jeffrey S. Smith, Michael Peter Nicoletti
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Patent number: 7829030Abstract: The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of catalyst particles in the reactor, wherein the catalyst particles have a d2 value of greater than about 40 microns. The catalyst particles are contacted with a fluidizing medium under conditions effective to cause the catalyst particles to behave in a fluidized manner and form a fluidized bed. The particles are contacted with one or more primary obstructing members while in the fluidized bed. By fluidizing the catalyst particles in this manner, the catalyst particles can be maintained at an axial gas Peclet number of from about 10 to about 20.Type: GrantFiled: June 2, 2005Date of Patent: November 9, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: James H. Beech, Jr., Nicolas P. Coute, Jeffrey S. Smith, Michael Peter Nicoletti
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Patent number: 7767870Abstract: A gas-solids reaction system with termination devices to connect a riser with one or more separation devices. The termination devices have a radius of curvature that is at least 1.0 times as great as the diameter of the conduit forming the termination device. The termination devices can be openly or closely coupled to the separation devices.Type: GrantFiled: August 31, 2005Date of Patent: August 3, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Rutton D. Patel, Arun K. Sharma, E. Nicholas Jones, James H. Beech, Jr., Richard E. Walter, Donald F. Shaw, Kenneth R. Clem, Nicolas P. Coute
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Patent number: 7498475Abstract: Molecular sieve catalysts are combined to provide a catalyst mixture having a beneficial combination of the activities and selectivities of the individual molecular sieves. The molecular sieve catalysts can be formulated or unformulated silicoaluminophosphate molecular sieves, silicoaluminate molecular sieves, and/or metalloaluminophosphate molecular sieves.Type: GrantFiled: May 5, 2005Date of Patent: March 3, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Nicolas P. Coute, Machteld M. Mertens, Marcel J. Janssen
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Patent number: 7396971Abstract: This invention is to a method and system for operating a hydrocarbon conversion process. A two stage reactor system is used in which the gas superficial velocity of the second reaction stage is greater than that in the first reaction stage. The first reaction stage operates at more continuous stirred tank reactor (CSTR) like characteristics, and the second reaction stage operates at more plug flow reactor (PFR) like characteristics.Type: GrantFiled: August 1, 2002Date of Patent: July 8, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jeffrey S. Smith, Keith Holroyd Kuechler, Nicolas P. Coute, Rathna P. Davuluri, David C. Skouby
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Patent number: 7385099Abstract: The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and optionally a center axis extending therebetween. The apparatus also includes a separation zone having a plurality of inlets, each inlet not being oriented along the center axes of the riser reactors, the separation zone being provided to separate the catalyst from products of a reaction conducted in the hydrocarbon conversion apparatus. A plurality of deviating members are also provided, each deviating member being in fluid communication between the second end of a respective riser reactor and a respective inlet of the separation zone. The apparatus also includes a catalyst retention zone provided to contain catalyst, which is fed to the riser reactors.Type: GrantFiled: June 14, 2006Date of Patent: June 10, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Keith Holroyd Kuechler, James R. Lattner, Nicolas P. Coute, Jeffrey S. Smith, Justin Leonard Krieger
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Patent number: 7355086Abstract: A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst particles, the regenerated particles are mixed with particles having coke on their surface in a manner that maintains their catalytic activity at a predetermined level.Type: GrantFiled: February 27, 2006Date of Patent: April 8, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Shun C. Fung, Richard B. Hall, Hafedh Kochkar, Karl G. Strohmaier, Nicolas P. Coute, Kenneth R. Clem
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Patent number: 7329309Abstract: A multi-stage gas-solids separator is configured so that the higher density (solids) output flows of two or more of the separator stages are merged together. The multi-stage separator is preferably composed of cyclone separators, with the diplegs of at least two of the cyclone separator stages merged together.Type: GrantFiled: May 23, 2005Date of Patent: February 12, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jeffrey S. Smith, James H. Beech, Jr., Nicolas P. Coute, Jesse F. Goellner, Kenneth Ray Clem
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Patent number: 7309383Abstract: Catalyst losses are prevented in riser reactor systems by using a low inlet velocity for the first cyclone separator in each multi-stage cyclone separator in the reactor. Catalyst particles not separated from the product output flow in an oxygenate-to-olefin reactor are also recaptured by cooling the product output flow and passing the flow through an electrostatic precipitator.Type: GrantFiled: September 23, 2004Date of Patent: December 18, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: James H. Beech, Jr., James R. Lattner, Nicolas P. Coute, Jeff S. Smith
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Patent number: 7309806Abstract: The invention is directed to methods for protecting metalloaluminophosphate molecular sieves, particularly silicoaluminophosphate (SAPO) molecular sieves, from loss of catalytic activity due to contact with a gas containing water. The methods of the invention provide procedures that enable activated sieve to contact water vapor, within a certain range of time, temperature, and water partial pressure conditions, before the sieve becomes substantially deactivated.Type: GrantFiled: November 22, 2005Date of Patent: December 18, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peter N. Loezos, Shun Chong Fung, Stephen Neil Vaughn, Kenneth Ray Clem, James H. Beech, Nicolas P. Coute, Marcel Johannes Janssen, Luc Roger Marc Martens, Karl G. Strohmaier
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Patent number: 7256052Abstract: This invention is to a microreactor type of reaction and analysis system. The system includes a chemical reaction chamber having internal conduits through which a chemical reactant, such as a reaction gas, can be fed. The conduits for transporting fluids such as reactant, carrier gas and balance gas are in appropriate communication such that the amount of reactant going directly to a catalyst located in the reaction chamber can be optimally controlled. The system is highly useful for studying the kinetics of a chemical reaction.Type: GrantFiled: October 18, 2002Date of Patent: August 14, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Nicolas P. Coute, John K. Pierce
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Patent number: 7256318Abstract: This invention is directed to controlling regenerator temperature in an oxygenate to olefin process. Because a significant amount of heat can produced in the regenerator during the regeneration process, at least a portion of the heat must be removed to keep the system from getting too hot. This invention removes heat during the regeneration of the catalyst, using appropriate circulation of catalyst between the reactor and the regenerator. Sufficient circulation can eliminate the need for the use of a catalyst cooler in the regeneration system.Type: GrantFiled: March 28, 2003Date of Patent: August 14, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: James R. Lattner, Keith Holroyd Kuechler, Nicolas P. Coute, Paul N. Chisholm
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Patent number: 7253005Abstract: A method and apparatus are provided for obtaining a reproducible sample of solid particles. The reproducible sample is obtained by receiving solid particles into a collection system that includes a sheltered volume. Solid particles that settle outside of the sheltered volume are purged from the collection system. The remaining solid particles inside the sheltered volume correspond to the reproducible sample.Type: GrantFiled: August 29, 2003Date of Patent: August 7, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Nicolas P. Coute, James R. Lattner, Jeffrey Scott Smith, Carl Edward Manning
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Patent number: 7227048Abstract: The present invention provides a process for making an olefin product from an oxygenate-containing feedstock comprising: a) contacting the feedstock in a reaction zone with catalyst particles comprising a molecular sieve containing acid sites and having an average coke loading of 1 to 10 carbon atoms per acid site of said molecular sieve, under conditions effective to convert the feedstock into an olefin product stream and to provide unregenerated catalyst particles, b) removing a portion of said catalyst particles from said reaction zone and contacting said portion with a regeneration medium in a regeneration zone under conditions effective to obtain regenerated catalyst particles which have an average coke loading of no greater than 10 carbon atoms per acid site of said molecular sieve, and c) introducing said regenerated catalyst particles into said reaction zone to provide a catalyst mixture of unregenerated catalyst particles and regenerated catalyst particles, in an amount sufficient to provide an averaType: GrantFiled: August 26, 2002Date of Patent: June 5, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul N. Chisholm, Nicolas P. Coute, James R. Lattner, Teng Xu, Jeffrey S. Smith, Keith Holroyd Kuechler
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Patent number: 7220341Abstract: This invention is to a process and system for controlling solids distribution in a gas-solids reactor. Solids distribution is controlled by controlling electrical charges between solid particles flowing between conductive surfaces within a gas-solids reactor. The electrical charges are controlled by conventional means such as by grounding the opposing conductive surfaces, or by applying a voltage to one of the opposing conductive surfaces.Type: GrantFiled: December 6, 2002Date of Patent: May 22, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jeffrey S. Smith, James Richardson Lattner, Kenneth R. Clem, Pete N. Loezos, Nicolas P. Coute, Rutton D. Patel
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Patent number: 7199278Abstract: A process is described for converting an oxygenate-containing feedstock into one or more olefins in a moving bed reactor system operating in countercurrent flow using a catalyst composition comprising a molecular sieve and at least one metal oxide having an uptake of carbon dioxide at 100° C. of at least 0.03 mg/m2 of the metal oxide.Type: GrantFiled: July 30, 2004Date of Patent: April 3, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Shun Chong Fung, Doron Levin, Jose Santiesteban, Nicolas P. Coute
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Patent number: 7199277Abstract: This invention relates to processes for converting oxygenates to olefins that include a step of pretreating catalyst, which comprises molecular sieve and one or more active metal oxides of one or more metals, with a hydrocarbon composition to provide an integrated hydrocarbon co-catalyst within the molecular sieve. The combination of molecular sieve and hydrocarbon co-catalyst converts oxygenate to an olefin product with high selectivity to light olefins (i.e., ethylene or propylene, or mixture thereof).Type: GrantFiled: July 1, 2004Date of Patent: April 3, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Teng Xu, Nicolas P. Coute, Kenneth R. Clem, Doron Levin, James C. Vartuli