Patents by Inventor Etienne Vansant
Etienne Vansant 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: 7193122Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with chemisorbed ammonia, which may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: March 4, 2005Date of Patent: March 20, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant, Marcel Johannes Janssen, Luc R. M. Martens
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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: 6916965Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds having a kinetic diameter greater than the average pore size of the activated molecular sieve and selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: December 16, 2003Date of Patent: July 12, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant
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Publication number: 20050148462Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with chemisorbed ammonia, which may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: March 4, 2005Publication date: July 7, 2005Inventors: Filip Mees, Etienne Vansant, Marcel Janssen, Luc Martens
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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: 6897180Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with chemisorbed ammonia, which may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: November 15, 2002Date of Patent: May 24, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant, Marcel Johannes Janssen, Luc R. M. Martens
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Publication number: 20040157732Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds having a kinetic diameter greater than the average pore size of the activated molecular sieve and selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: December 16, 2003Publication date: August 12, 2004Inventors: Filip Mees, Etienne Vansant
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Patent number: 6756516Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: March 29, 2002Date of Patent: June 29, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant
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Publication number: 20040116282Abstract: 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: ApplicationFiled: December 12, 2002Publication date: June 17, 2004Inventors: 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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Publication number: 20040116762Abstract: 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: ApplicationFiled: March 24, 2003Publication date: June 17, 2004Inventors: Filip Mees, Etienne Vansant, Kun Wang, Richard B. Hall, Marcel Johannes Janssen, Luc Roger Marc Martens, An Verberckmoes, Guang Cao
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Publication number: 20030149321Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with chemisorbed ammonia, which may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: November 15, 2002Publication date: August 7, 2003Inventors: Filip Mees, Etienne Vansant, Marcel Johannes Janssen, Luc R.M. Martens
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Publication number: 20030004056Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: March 29, 2002Publication date: January 2, 2003Inventors: Filip Mees, Etienne Vansant
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Patent number: 5039641Abstract: The invention relates to a process for modifying a molecular sieve, whereby the molecular sieve is brought into contact with a modifying agent containing at least one weak acid, a salt of a weak acid or a derivative of a weak acid of at least one element of Groups III, IV or V of the Periodic Table of Elements, by dry mixing the molecular sieve and the modifying agent, optionally followed by adding liquid to form a slurry or paste, whereafter the resulting mixture is subjected to a thermal treatment.Type: GrantFiled: February 8, 1989Date of Patent: August 13, 1991Assignee: Europese Economische Gemeenschap (E E G)Inventors: Etienne Vansant, Serge Moreau, Jan Verbiest, Paul de Bievre, Jos Philippaerts
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Patent number: 5032152Abstract: The invention relates to a process for the separation of at least one gas from a mixture containing at least two gases, which process comprises contacting a pore containing molecular sieve with the mixture of gaseous components, selectively adsorbing at least one component of the mixture in the pores of the molecular sieve, separating the molecular sieve from the non-adsorbed component or components and optionally desorbing the adsorbed component or components, the molecular sieve having been modified with a modifying agent containing at least one weak acid, a salt of a weak acid, or a derivative of a weak acid of at least one element of the Groups III, IV and V of the Periodic Table of Elements.Type: GrantFiled: February 8, 1989Date of Patent: July 16, 1991Inventors: Etienne Vansant, Serge Moreau, Jan Verbiest, Paul de Bievre, Jos Philippaerts
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Patent number: 4999175Abstract: A process for separating sulfur-containing compounds other than mercaptans from gaseous streams. A gaseous stream including mercaptans and other sulfur-containing compounds is brought into contact with a solid supporting material coated with a thin layer of an amine-containing active agent capable of selectively adsorbing the sulfur-containing compounds other than mercaptans. This process permits the monitoring of mercaptans in gaseous streams without interference from other sulfur-containing compounds, as well as the purification of mercaptans.Type: GrantFiled: May 15, 1989Date of Patent: March 12, 1991Assignee: European Atomic Energy Community (EURATOM)Inventors: Etienne Vansant, Guido Peeters, Paul de Bievre, Remi van Gompel
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Patent number: 4933162Abstract: The invention concerns a process for ultra-drying of a gas or gas mixture by bringing this into contact with a silicate containing material.In order to obtain a residual water level of 5 ppb or less, the invention is characterized in that the gas or gas mixture is brought into contact with a silcate containing material, preferably a zeolite or silicagel, that has been modified with silane, borane, and/or the alkyl and/or halogen substituted compounds thereof.The invention is further concerned with the separation of tritium oxide from gas mixtures preferably with water.Type: GrantFiled: April 25, 1988Date of Patent: June 12, 1990Assignee: European Atomic Energy Community (EURATOM)Inventors: Etienne Vansant, Guido Peeters, Paul De Bievre, Remi Van Gompel, Giamcarlo Pierini, Heinz Dworschak
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Patent number: 4867762Abstract: The invention concerns a method and a device for purifying a gas containing hydrogen isotopes, and for recovering the different isotopes, in particular for treating a gas coming from a thermonuclear fusion reactor. According to the invention, the gas is firstly dried in a water and CO.sub.2 adsorption stage (2), the dried gas then passes through a stage (3) in which a selective adsorption of sulphur compounds takes place and finally, the gas leaving this stage, which still contains at least some of the compounds (H,D,T).sub.2, N.sub.2, O.sub.2, CO, C(H,D,T).sub.4, is processed in a hydrogen adsorption/separation stage (4) of the zeolite type.Type: GrantFiled: May 26, 1988Date of Patent: September 19, 1989Assignee: European Atomic Energy Community (EURATOM)Inventors: Giancarlo Pierini, Heinz Dworschak, Bruno Spelta, Etienne Vansant
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Patent number: 4620857Abstract: A porous solid such as a zeolite of clay can be degassed to make it suitable as an adsorbent, after which the entrances of the pores are narrowed to a desired size by treating the porous solid with two chemisorbable materials, one of which is diborane. The treatment may be repeated.The purpose of the first such treatment is to make the pore entrances so narrow, that unduly large molecules cannot enter and the smaller ones can, while a later treatment may serve to narrow the pores still further, so that the adsorbed molecules cannot escape.Type: GrantFiled: October 18, 1984Date of Patent: November 4, 1986Assignee: European Atomic Energy Community (Euratom)Inventors: Etienne Vansant, Paul De Bievre, Guido J. Peeters, Anita Thijs, Ingrid Verhaert
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Patent number: 4569683Abstract: A clay material of the polygorskite group, pretreated or not, is degassed and contacted with a gas to be adsorbed and after adsorption the clay is heated while in contact with the gas so that the clay structure collapses, encapsulating the adsorbed gas. If desired the entrances of the pores may be narrowed to a desired size by adsorption of diborane before the adsorption of the gas.Type: GrantFiled: October 18, 1984Date of Patent: February 11, 1986Assignee: European Atomic Energy Community (EURATOM)Inventors: Etienne Vansant, Paul De Bievre, Guido J. Peeters, Anita Thijs, Ingrid Verhaert