Patents by Inventor Shun Chong Fung
Shun Chong Fung 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: 7390664Abstract: The present invention relates to an apparatus and a process for the high-throughput, quick screening, optimization, regeneration, reduction and activation of catalysts. More specifically, the present invention is a method and apparatus to quickly screen, optimize and regenerate multiple fast deactivating catalysts while maintaining a predefined range of time-on-stream.Type: GrantFiled: December 20, 2002Date of Patent: June 24, 2008Assignee: ExxonMobil Research and Engineering CompanyInventors: Shun Chong Fung, Teh Chung Ho
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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: 7276149Abstract: The invention is directed to methods of shutting down 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 stopping feed to the reactor and unloading catalyst to protect against loss of catalytic activity that can occur due to contact with water molecules.Type: GrantFiled: August 15, 2003Date of Patent: October 2, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: James H. Beech, Richard E. Walter, Shun Chong Fung, Peter N. Loezos, Marcel Johannes Janssen, Stephen Neil Vaughn
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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: 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: 7186875Abstract: A process is described for converting an oxygenate-containing feedstock into one or more olefins in a reactor system including a plurality of fixed bed reactors each containing 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. Each reactor is sequentially rotated between at least one operating mode, wherein the catalyst composition in the reactor is contacted with the oxygenate-containing feedstock, and a regeneration mode, wherein the catalyst composition in the reactor is contacted with a regeneration medium.Type: GrantFiled: July 30, 2004Date of Patent: March 6, 2007Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Shun Chong Fung, Doron Levin, Jose Santiesteban, Nicolas P. Coute
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Patent number: 7166757Abstract: A process is described for converting an oxygenate-containing feedstock into one or more olefins in which the feedstock is contacted in a reaction zone with a fluidized bed of a particulate 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 whereby at least part of the feedstock is converted into a product stream comprising one or more olefins and a carbonaceous material is deposited on the catalyst composition to produce a coked catalyst composition. The coked catalyst composition is separated from the product stream and divided into at least first and second portions. The first portion of the coked catalyst composition is contacted with a regeneration medium in a regeneration zone under conditions to remove at least part of the carbonaceous material from the coked catalyst composition and produce a regenerated catalyst composition, which is subsequently recycled to the reaction zone.Type: GrantFiled: July 30, 2004Date of Patent: January 23, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Shun Chong Fung, Doron Levin, Jose Santiesteban, Nicolas P. Coute
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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: 7053260Abstract: The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises: a) contacting the feedstock in a reaction zone with a catalyst comprising i) a molecular sieve having defined pore openings and ii) a CO oxidation metal, under conditions effective to convert the feedstock into an olefin product stream comprising C2–C3 olefins and to form carbonaceous deposits on the catalyst so as to provide a carbon-containing catalyst; b) contacting at least a portion of the carbon-containing catalyst with a regeneration medium comprising oxygen in a regeneration zone comprising a fluid bed regenerator having a dense fluid phase and a dilute fluid phase under conditions effective to obtain a regenerated catalyst portion, wherein the difference between the temperature of the dilute phase and the temperature of the dense phase is no greater than 100° C.; c) introducing said regenerated catalyst portion into said reaction zone; and d) repeating steps a)–c).Type: GrantFiled: June 13, 2002Date of Patent: May 30, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Teng Xu, Paul N. Chisholm, Stephen Neil Vaughn, Shun Chong Fung, Keith Holroyd Kuechler, James R. Lattner, Kenneth Ray Clem, Patrick J. Maher, Dean C. Draemel
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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: 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
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Publication number: 20040121470Abstract: The present invention relates to an apparatus and a process for the high-throughput, quick screening, optimization, regeneration, reduction and activation of catalysts. More specifically, the present invention is a method and apparatus to quickly screen, optimize and regenerate multiple fast deactivating catalysts while maintaining a predefined range of time-on-stream.Type: ApplicationFiled: December 20, 2002Publication date: June 24, 2004Inventors: Shun Chong Fung, Teh Chung Ho
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Publication number: 20030163010Abstract: The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises:Type: ApplicationFiled: June 13, 2002Publication date: August 28, 2003Inventors: Teng Xu, Paul N. Chisholm, Stephen Neil Vaughn, Shun Chong Fung, Keith Holroyd Kuechler, James R. Lattner, Kenneth Ray Clem, Patrick J. Maher, Dean C. Draemel
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Publication number: 20030032848Abstract: Hydrocarbon conversion process in which a feedstock is contacted with a non zeolitic molecular sieve 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 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: ApplicationFiled: June 10, 2002Publication date: February 13, 2003Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
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Patent number: 6506703Abstract: An ion exchange method is provided for loading and uniformly distributing noble metals into a catalyst substrate comprising a zeolite to make a monofunctional, non-acidic reforming catalyst. The catalyst substrate is contacted with an aqueous loading solution comprising noble metal cations and non-noble metal cations. The loading solution is formulated such that the equivalents of non-noble metal cations remaining in the catalyst not ionically bonded to the zeolite when loading is complete is 1.2 to 6.0 times the equivalents of non-noble metal cations displaced from the zeolite when the noble metal cations ion exchange into the zeolite, and simultaneously the endpoint pH of the loading solution is between 10.0 and 11.5. The required 1.2 to 6.0 ratio is achieved when the ratio of moles of non-noble metal cations added to the loading solution to moles of noble metal added to the loading solution is between 1 and 10.Type: GrantFiled: January 24, 2000Date of Patent: January 14, 2003Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Jar-Lin Kao, Kenneth Ray Clem, Thomas Henry Vanderspurt, Shun Chong Fung
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Patent number: 6156189Abstract: The present invention is directed to a Fluid Catalytic Cracking process conducted under fluid catalytic cracking conditions by injecting into at least one reaction zone of a fluid catalytic cracking unit (FCCU) having one or more risers, a plurality of feeds wherein said plurality of feeds comprises at least one feed (.alpha.) and at least another feed (.beta.) wherein said feeds (.alpha.) and (.beta.) (a) differ in Conradson Carbon Residue by at least about 2 wt % points; or (b) differ in hydrogen content by at least about 0.2 wt %; or (c) differ in API gravities by at least about 2 points; or (d) differ in nitrogen content by at least about 50 ppm; or (e) differ in carbon-to-hydrogen ratio by at least about 0.3; or (f) differ in mean boiling point by at least about 200.degree. F; and wherein said feeds (.alpha.) and (.beta.) are alternately injected and wherein said alternate injection maintains said risers in a cyclic steady state, while the rest of the FCC unit is in a steady state.Type: GrantFiled: April 20, 1999Date of Patent: December 5, 2000Assignee: Exxon Research and Engineering CompanyInventors: Teh Chung Ho, Shun Chong Fung, Daniel Paul Leta
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Patent number: 6123832Abstract: The invention relates to Fluid Catalytic Cracking (FCC) for producing liquid fuels and light olefins from liquid hydrocarbon mixtures such as petroleum fractions.Type: GrantFiled: January 14, 1999Date of Patent: September 26, 2000Assignee: Exxon Research and Engineering Co.Inventors: Teh Chung Ho, Shun Chong Fung, Gordon Frederick Stuntz, Robert Charles Welch, Daniel Paul Leta
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Patent number: 6090271Abstract: The invention provides a process for improving the conversion of a hydrocarbon feedstock to light olefins comprising mixing a hydrocarbon feedstock with a diolefin to form a mixture; and thereafter contacting the mixture with a zeolite cracking catalyst. Preferably the catalyst is contacted at a reaction temperature within the range of about 500.degree. C. to about 750.degree. C. and the feedstock flows at a weight hourly space velocity in the range of about 0.1 Hr.sup.-1 WHSV to about 100 Hr.sup.-1 WHSV. The diolefin can be a straight, branched, or cyclic hydrocarbon having at least two II bonds. Preferably diolefin is a hydrocarbon of 4 to 20 carbons.Type: GrantFiled: June 10, 1997Date of Patent: July 18, 2000Assignee: Exxon Chemical Patents Inc.Inventors: Joseph Francis Carpency, Tan-Jen Chen, Shun Chong Fung, Andrew Brennek