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).

  • Patent number: 7390664
    Abstract: 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: Grant
    Filed: December 20, 2002
    Date of Patent: June 24, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Shun Chong Fung, Teh Chung Ho
  • Patent number: 7309806
    Abstract: 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: Grant
    Filed: November 22, 2005
    Date of Patent: December 18, 2007
    Assignee: 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
  • Patent number: 7276149
    Abstract: 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: Grant
    Filed: August 15, 2003
    Date of Patent: October 2, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Richard E. Walter, Shun Chong Fung, Peter N. Loezos, Marcel Johannes Janssen, Stephen Neil Vaughn
  • Patent number: 7259287
    Abstract: 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: Grant
    Filed: August 15, 2003
    Date of Patent: August 21, 2007
    Assignee: 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
  • Patent number: 7199278
    Abstract: 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: Grant
    Filed: July 30, 2004
    Date of Patent: April 3, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Shun Chong Fung, Doron Levin, Jose Santiesteban, Nicolas P. Coute
  • Patent number: 7186875
    Abstract: 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: Grant
    Filed: July 30, 2004
    Date of Patent: March 6, 2007
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Shun Chong Fung, Doron Levin, Jose Santiesteban, Nicolas P. Coute
  • Patent number: 7166757
    Abstract: 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: Grant
    Filed: July 30, 2004
    Date of Patent: January 23, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Shun Chong Fung, Doron Levin, Jose Santiesteban, Nicolas P. Coute
  • Patent number: 7151199
    Abstract: 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: Grant
    Filed: June 10, 2002
    Date of Patent: December 19, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
  • Patent number: 7053260
    Abstract: 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: Grant
    Filed: June 13, 2002
    Date of Patent: May 30, 2006
    Assignee: 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
  • Patent number: 7015174
    Abstract: 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: Grant
    Filed: June 20, 2003
    Date of Patent: March 21, 2006
    Assignee: 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
  • Patent number: 6897179
    Abstract: 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: Grant
    Filed: June 13, 2003
    Date of Patent: May 24, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Shun Chong Fung, Stephen Neil Vaughn, Marcel Johannes Janssen, Luc Roger Marc Martens, Kenneth Ray Clem
  • Publication number: 20040260140
    Abstract: 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: Application
    Filed: June 20, 2003
    Publication date: December 23, 2004
    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
  • Publication number: 20040254068
    Abstract: 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: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Inventors: Shun Chong Fung, Stephen Neil Vaughn, Marcel Johannes Janssen, Luc Roger Marc Martens, Kenneth Ray Clem
  • Publication number: 20040121470
    Abstract: 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: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventors: Shun Chong Fung, Teh Chung Ho
  • Publication number: 20030163010
    Abstract: The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises:
    Type: Application
    Filed: June 13, 2002
    Publication date: August 28, 2003
    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
  • Publication number: 20030032848
    Abstract: 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: Application
    Filed: June 10, 2002
    Publication date: February 13, 2003
    Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
  • Patent number: 6506703
    Abstract: 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: Grant
    Filed: January 24, 2000
    Date of Patent: January 14, 2003
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Jar-Lin Kao, Kenneth Ray Clem, Thomas Henry Vanderspurt, Shun Chong Fung
  • Patent number: 6156189
    Abstract: 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: Grant
    Filed: April 20, 1999
    Date of Patent: December 5, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Teh Chung Ho, Shun Chong Fung, Daniel Paul Leta
  • Patent number: 6123832
    Abstract: The invention relates to Fluid Catalytic Cracking (FCC) for producing liquid fuels and light olefins from liquid hydrocarbon mixtures such as petroleum fractions.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: September 26, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Teh Chung Ho, Shun Chong Fung, Gordon Frederick Stuntz, Robert Charles Welch, Daniel Paul Leta
  • Patent number: 6090271
    Abstract: 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: Grant
    Filed: June 10, 1997
    Date of Patent: July 18, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Joseph Francis Carpency, Tan-Jen Chen, Shun Chong Fung, Andrew Brennek