Patents by Inventor Frederick Y. Lo

Frederick Y. Lo 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).

  • Publication number: 20140378720
    Abstract: A process to produce polyalpha-olefins includes contacting a feed stream of at least one alpha-olefin monomer having 4 to 25 carbon atoms with a metallocene catalyst compound and an activator, and optionally an alkyl-aluminum compound, under polymerizations conditions in a reactor. The alpha-olefin monomer is present at 10% volume or more in the reactor and the feed stream includes less than 600 ppm of heteroatom containing compounds. The process further includes obtaining a polyalpha-olefin with at least 50 mole % C5 to C24 alpha-olefin monomer and kinematic viscosity at 100° C. of 5000 cSt or less.
    Type: Application
    Filed: May 6, 2014
    Publication date: December 25, 2014
    Inventors: Margaret M. Wu, Norman Yang, Lisa S. Baugh, Jo Ann M. Canich, Steven P. Rucker, John F. Walzer, JR., Gordon H. Lee, Frederick Y. Lo, Andrew Jackson, Mark P. Hagemeister, Shakeel Tirmizi, Peijun Jiang, Chia S. Chee
  • Patent number: 8703635
    Abstract: This disclosure relates to a catalyst composition comprising (a) MCM-22 family material; and (b) a binder comprising at least 1 wt. % of a titanium compound based on the weight of said catalyst composition, wherein said titanium compound was anatase and rutile phases.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: April 22, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
  • Publication number: 20130267406
    Abstract: This disclosure relates to a catalyst composition comprising (a) MCM-22 family material; and (b) a binder comprising at least 1 wt.% of a titanium compound based on the weight of said catalyst composition, wherein said titanium compound was anatase and rutile phases.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 10, 2013
    Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
  • Patent number: 8524967
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Yun-Feng Chang
  • Patent number: 8492602
    Abstract: This disclosure relates to a process for alkylating an aromatic hydrocarbon with an alkylating agent to produce an alkylated aromatic product, said process comprising contacting said aromatic hydrocarbon and said alkylating agent with a catalyst composition under alkylation conditions effective to alkylate said aromatic hydrocarbon with said alkylating agent to form an effluent comprising said alkylated aromatic product, wherein said catalyst composition comprising (a) MCM-22 family material; and (b) a binder comprising at least 1 wt. % of a titanium compound based on the weight of said catalyst composition, wherein said titanium compound was anatase and rutile phases.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: July 23, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
  • Publication number: 20130072734
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over surface volume ratio greater than about 79 cm?1; (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Application
    Filed: November 14, 2012
    Publication date: March 21, 2013
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Yun-Feng Chang
  • Patent number: 8357830
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, comprising providing upstream of said alkylation reaction zone a reactive guard bed having a catalyst of *BEA, MWW, or FAU framework structure and an alkylation feed wherein at least a portion of any reactive impurities are removed from the alkylation feed to form an effluent; and providing the effluent and a first catalytic particulate material which comprises MCM-56 and an alumina binder sized 50-60 mesh and having a ratio of surface area over volume ratio in the range of 241 to 2867 cm-1 and optionally additional alkylating agent to said alkylation reaction zone; and contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: January 22, 2013
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
  • Patent number: 8334419
    Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g., MCM-49, or a mixture thereof.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 18, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
  • Publication number: 20120315197
    Abstract: A system for removing polar components from a process stream in a refinery process without cooling the stream is disclosed. The stream is fed to a first adsorber unit to remove contaminants containing sulfur from the stream at substantially the same elevated temperature. The stream is processed within the first adsorber unit by exposing the stream to at least one of a metal oxide and a mixed metal oxide to remove the sulfur containing contaminants and produce a metal sulfide and a desulfurized stream. The desulfurized stream is then fed through a second adsorber unit to remove contaminants containing nitrogen from the stream at substantially the same elevated temperature. The stream is processed within the second adsorber unit by exposing the stream to at least one of a molecular sieve and zeolites to remove nitrogen containing contaminants from the stream.
    Type: Application
    Filed: August 3, 2012
    Publication date: December 13, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Bhupender S. MINHAS, Frederick Y. LO, Ian A. CODY, Donald E. STRATTON
  • Patent number: 8317902
    Abstract: A process for removing polar components from a process stream in a refinery process without cooling the process stream. The process stream is fed to a first adsorber unit to remove contaminants containing sulfur at substantially the same elevated temperature by exposing the process stream to a metal oxide and/or a mixed metal oxide to remove the sulfur containing contaminants and produce a metal sulfide and a desulfurized process stream. The metal sulfide may be regenerated by exposing it to a stream of oxygen and the desulfurized process stream exposed to the regenerated metal/mixed metal oxide to remove moisture from the stream. The stream is then processed within a second adsorber unit to remove nitrogen containing contaminants at substantially the same elevated temperature by exposing the stream to a molecular sieve and/or zeolite.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: November 27, 2012
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Bhupender S Minhas, Frederick Y. Lo, Ian A Cody, Donald E Stratton
  • Publication number: 20120283497
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over surface volume ratio greater than about 79 cm?1; (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Application
    Filed: June 29, 2012
    Publication date: November 8, 2012
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
  • Patent number: 8247629
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material having a ratio of surface area over volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: August 21, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
  • Patent number: 8110715
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 7, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Publication number: 20110178353
    Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g., MCM-49, or a mixture thereof.
    Type: Application
    Filed: March 31, 2011
    Publication date: July 21, 2011
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
  • Publication number: 20110166403
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Application
    Filed: March 10, 2011
    Publication date: July 7, 2011
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Patent number: 7960304
    Abstract: A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: June 14, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Frederick Y. Lo, Michael C. Clark, C. Morris Smith, Mohan Kalyanaraman
  • Patent number: 7939700
    Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g., MCM-49, or a mixture thereof.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: May 10, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
  • Patent number: 7928274
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 19, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Publication number: 20110065972
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 17, 2011
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Publication number: 20100304959
    Abstract: A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.
    Type: Application
    Filed: April 26, 2010
    Publication date: December 2, 2010
    Inventors: Christine N. Elia, Frederick Y. Lo, Michael C. Clark, C. Morris Smith, Mohan Kalyanaraman