Patents by Inventor Luc Roger Marc Martens
Luc Roger Marc Martens 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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Publication number: 20150099913Abstract: A methanol conversion process comprises contacting a feedstream comprising methanol, optionally with dimethyl ether or other oxygenates with a catalyst comprising a physical mixture of a molecular sieve, preferably an intermediate or small pore size zeolite such as an MFI zeolite, with a basic metal oxide to provide extended catalyst cycle life by reducing the incidence of coke formation. The process may be applied to the methanol-to-gasoline (MTG), methanol to distillate (MOD), methanol-to-olefins (MTO), methanol-to-chemicals (MTC) and combination processes such as the MTO/OCP Process.Type: ApplicationFiled: October 4, 2013Publication date: April 9, 2015Applicant: ExxonMobil Research and Engineering CompanyInventors: Luc Roger Marc MARTENS, David M. MARCUS, Teng XU
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Patent number: 8921607Abstract: Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydes. Higher temperatures and/or longer residence times and/or higher partial pressure of carbon monoxide than in conventional processes are used to ensure hydroformylation of all the monomers.Type: GrantFiled: April 4, 2012Date of Patent: December 30, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Raphael F. Caers, Eddy Theophile Van Driessche, Hubertus J. Beckers, Luc Roger Marc Martens, Georges Marie Mathys, John Richard Shutt
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Publication number: 20120253059Abstract: Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydes. Higher temperatures and/or longer residence times and/or higher partial pressure of carbon monoxide than in conventional processes are used to ensure hydroformylation of all the monomers.Type: ApplicationFiled: April 4, 2012Publication date: October 4, 2012Inventors: Raphael F. Caers, Eddy Theophile Van Driessche, Hubertus J. Beckers, Luc Roger Marc Martens, Georges Marie Mathys, John Richard Shutt
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Patent number: 8178730Abstract: Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydes.Type: GrantFiled: September 21, 2011Date of Patent: May 15, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Raphael F. Caers, Eddy Theophile Van Driessche, Hubertus J. Beckers, Luc Roger Marc Martens, Georges Marie Mathys, John Richard Shutt
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Publication number: 20120010426Abstract: Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydesType: ApplicationFiled: September 21, 2011Publication date: January 12, 2012Inventors: Raphael F. Caers, Eddy Theophile Van Driessche, Hubertus J. Beckers, Luc Roger Marc Martens, Georges Marie Mathys, John Richard Shutt
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Patent number: 8022256Abstract: Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydes. Higher temperatures and/or longer residence times and/or higher partial pressure of carbon monoxide than in conventional processes are used to ensure hydroformylation of all the monomers.Type: GrantFiled: September 17, 2004Date of Patent: September 20, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Raphael F. Caers, Eddy Theophile Van Driessche, Hubertus J. Beckers, Luc Roger Marc Martens, Georges Maria Mathys, John Richard Shutt
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Patent number: 7582802Abstract: Propylene streams obtained by the conversion of oxygenates to olefins are used as feeds for hydroformylation. The streams may contain measurable amounts of dimethyl ether without adversely impacting the hydroformylation.Type: GrantFiled: January 28, 2005Date of Patent: September 1, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Raphael Frans Caers, Hubertus Joseph Beckers, Eddy Theophyle Andrea Van Driessche, Luc Roger Marc Martens, John Stephen Godsmark, John Richard Shutt
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Patent number: 7495142Abstract: Metalloaluminophosphate molecular sieves and metalloaluminophosphate molecular sieve catalyst particles are protecting from degradation by water by maintaining said molecular sieves or catalysts in contact with a liquid mixture of alcohol and water, the mixture of alcohol and water containing from 45 wt % to 99.8 wt % alcohol. The metalloaluminophosphate molecular sieves and metalloaluminophosphate molecular sieve catalyst particles which have been protected in such fashion catalyze the conversion of feedstocks to hydrocarbons.Type: GrantFiled: June 14, 2007Date of Patent: February 24, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Marcel Johannes Janssen, Luc Roger Marc Martens
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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: 7273827Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a catalyst composition comprising a molecular sieve having a framework including at least [AlO4] and [PO4] tetrahedral units, at least one of a binder and a matrix material and at least one phosphorus compound separate from said molecular sieve wherein, after calcination at 760° C. for 3 hours, said catalyst composition has a microporous surface area in excess of 20% of the microporous surface area of said molecular sieve after calcination at 650° C. in nitrogen for 2 hours. The catalyst composition is particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: December 19, 2005Date of Patent: September 25, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc Roger Marc Martens, Jeffrey Wayne Sprinkle, Ian Nathaniel Walker
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Patent number: 7259287Abstract: The invention is directed to methods of starting up reaction systems. The reaction systems are those that use catalysts that comprise molecular sieves, particularly metalloaluminophosphate molecular sieves, especially metalloaluminophosphate molecular sieves which are susceptible to loss of catalytic activity due to contact with water molecules. The methods provide appropriate mechanisms of heating and loading the activated molecular sieves to protect against loss of catalytic activity that can occur due to contact with water molecules.Type: GrantFiled: August 15, 2003Date of Patent: August 21, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: James H. Beech, Richard E. Walter, Shun Chong Fung, Peter N. Loezos, Marcel Johannes Janssen, Luc Roger Marc Martens, Kenneth Ray Clem, Stephen Neil Vaughn
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Patent number: 7241716Abstract: Metalloaluminophosphate molecular sieves and metalloaluminophosphate molecular sieve catalyst particles are protecting from degradation by water by maintaining said molecular sieves or catalysts in contact with a liquid mixture of alcohol and water, the mixture of alcohol and water containing from 45 wt % to 99.8 wt % alcohol. The metalloaluminophosphate molecular sieves and metalloaluminophosphate molecular sieve catalyst particles which have been protected in such fashion catalyze the conversion of feedstocks to hydrocarbons.Type: GrantFiled: November 10, 2003Date of Patent: July 10, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Marcel Johannes Janssen, Luc Roger Marc Martens
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Patent number: 7151199Abstract: Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One method includes heating the catalyst in a low moisture environment, followed by contacting the heated catalyst with air and/or steam. Another method includes steam-treating the catalyst at a temperature from 400° C. to 1000° C. The hydrocarbon or oxygenate conversion processes include the conversion of oxygenates to olefins, the conversion of oxygenates and ammonia to alkylamines, the conversion of oxygenates and aromatic compounds to alkylated aromatic compounds, cracking and dewaxing.Type: GrantFiled: June 10, 2002Date of Patent: December 19, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
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Patent number: 7026267Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a catalyst composition comprising a molecular sieve having a framework including at least [AlO4] and [PO4] tetrahedral units, at least one of a binder and a matrix material and at least one phosphorus compound separate from said molecular sieve wherein, after calcination at 760° C. for 3 hours, said catalyst composition has a microporous surface area in excess of 20% of the microporous surface area of said molecular sieve after calcination at 650° C. in nitrogen for 2 hours. The catalyst composition is particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: December 20, 2002Date of Patent: April 11, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc Roger Marc Martens, Jeffrey Wayne Sprinkle, Ian Nathaniel Walker
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Patent number: 7015174Abstract: 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: June 20, 2003Date of Patent: March 21, 2006Assignee: 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: 6936566Abstract: The invention is directed to a method for modifying a microporous metalloaluminophosphate molecular sieve, the method comprising the steps of a) introducing a compound containing at least one M-X group within the cages of said microporous molecular sieve; and b) reacting said compound containing at least one M-X group with the acid groups located in the cages of the molecular sieve, wherein the compound containing at least one M-X group is selected from the group consisting of compounds of formula MX3, compounds of formula M2X6, and mixtures thereof, M being a metal belonging to Group 13 of the Periodic Table, and each X independently being a hydrogen or halogen atom. Preferably, X is a hydrogen atom. The present invention also relates to modified metalloaluminophosphate molecular sieves, preferably modified silicoaluminophosphate molecular sieves, as well as to the use of these modified molecular sieves in catalytic processes, such as processes for the conversion of oxygenated hydrocarbon feedstocks.Type: GrantFiled: March 24, 2003Date of Patent: August 30, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant, Kun Wang, Richard B. Hall, Marcel Johannes Janssen, Luc Roger Marc Martens, An Verberckmoes, Guang Cao
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Patent number: 6906233Abstract: The invention is directed to a method for modifying a microporous metalloaluminophosphate molecular sieve, the method comprising the steps of a) introducing a compound containing at least one M-X group within the cages of said microporous molecular sieve; and b) reacting said compound containing at least one M-X group with the acid groups located in the cages of the molecular sieve, wherein the compound containing at least one M-X group is selected from the group consisting of compounds of formula MX3, compounds of formula M2X6, and mixtures thereof, M being a metal belonging to Group 13 of the Periodic Table, and each X independently being a hydrogen or halogen atom. Preferably, X is a hydrogen atom. The present invention also relates to modified metalloaluminophosphate molecular sieves, preferably modified silicoaluminophosphate molecular sieves, as well as to the use of these modified molecular sieves in catalytic processes, such as processes for the conversion of oxygenated hydrocarbon feedstocks.Type: GrantFiled: December 12, 2002Date of Patent: June 14, 2005Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant, Kun Wang, Richard B. Hall, Marcel Johannes Janssen, Luc Roger Marc Martens, An Amandine Verberckmoes, Guang Cao
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Patent number: 6897179Abstract: Disclosed is a method of protecting the loss of catalytic activity of metalloaluminophosphate molecular sieve, particularly a SAPO molecular sieve, from contact with moisture. The method involves heating the metalloaluminophosphate molecular sieve so as to remove template, and provide a molecular sieve in sufficiently dry form for storage.Type: GrantFiled: June 13, 2003Date of Patent: May 24, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Shun Chong Fung, Stephen Neil Vaughn, Marcel Johannes Janssen, Luc Roger Marc Martens, Kenneth Ray Clem
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Publication number: 20040260140Abstract: 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: ApplicationFiled: June 20, 2003Publication date: December 23, 2004Inventors: 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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Publication number: 20040254068Abstract: Disclosed is a method of protecting the loss of catalytic activity of metalloaluminophosphate molecular sieve, particularly a SAPO molecular sieve, from contact with moisture. The method involves heating the metalloaluminophosphate molecular sieve so as to remove template, and provide a molecular sieve in sufficiently dry form for storage.Type: ApplicationFiled: June 13, 2003Publication date: December 16, 2004Inventors: Shun Chong Fung, Stephen Neil Vaughn, Marcel Johannes Janssen, Luc Roger Marc Martens, Kenneth Ray Clem