Patents by Inventor Lawrence L. Murrell

Lawrence L. Murrell 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: 7608747
    Abstract: A process for the selective ring opening of ring-containing hydrocarbons in a feed stream having at least 10% ring-containing hydrocarbons includes contacting the feed stream with a ring opening catalyst containing a metal or a mixture of metals active for the selective ring opening of the ring-containing hydrocarbons on a support material, wherein the support material is a non-crystalline, porous inorganic oxide or mixture of inorganic oxides having at least 97 volume percent interconnected mesopores based on micropores and mesopores, and wherein the ring-containing hydrocarbons have at least one C6 ring and at least one substituent selected from the group consisting of fused 5- or 6-membered rings, alkyl, cycloalkyl and aryl groups.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 27, 2009
    Assignee: Lummus Technology Inc.
    Inventors: Bala Ramachandran, Lawrence L. Murrell, Martin Kraus, Zhiping Shan, Philip J. Angevine
  • Patent number: 7510644
    Abstract: A method for making a zeolite includes providing a reaction mixture containing mixed inorganic oxides and an organic templating agent, heating the reaction mixture, removing the templating agent at a temperature of no greater than 550° C. and under conditions such that the resulting zeolite is has an AAI of at least 1.2. The zeolite is preferably zeolite beta, TEA-mordenite or TEA-ZSM-12.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: March 31, 2009
    Assignee: Lummus Technology Inc.
    Inventors: Rudolf Overbeek, Nelleke van der Puil, Chuen Y. Yeh, Lawrence L. Murrell, Yun-Feng Chang, Philip Jay Angevine, Johannes Hendrik Koegler
  • Patent number: 7495143
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: February 24, 2009
    Assignee: Lummus Technology Inc.
    Inventors: Xingtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Publication number: 20080154083
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Application
    Filed: February 25, 2008
    Publication date: June 26, 2008
    Inventors: Xingtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Patent number: 7361797
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: April 22, 2008
    Assignee: ABB Lummus Global Inc.
    Inventors: Xingtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Patent number: 6946107
    Abstract: An apparatus for converting at least one nitrogen oxide, such as NO, O2, or N2O converts oxide in the presence of a catalyst supported on a metal mesh-like structure. The mesh-like structure is preferably fibrous formed of metal or ceramic fibers which may include knitted wire, sintered metal fibers and so on and has a porosity greater than about 85%. The mesh is formed into channels, preferably corrugations, and includes vortex generators, which generate turbulence to create a pressure differential across the mesh, to promote flow of fluids through the mesh pores which normally do not exhibit flow therethrough in the absence of such pressure differential. Preferred embodiments of structured packing and monoliths are disclosed each having a catalyst preferably in the mesh pores and/or coated on the fibers for converting the nitrogen oxide.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: September 20, 2005
    Assignee: ABB Lummus Global, Inc.
    Inventors: Joakim A. Carlborg, Yun-Feng Chang, Lawrence L. Murrell, Robert E. Trubac, Rudolf A. Overbeek, Verena R. Schmidt, Chuen Y. Yeh, Lothar Schuh
  • Patent number: 6809055
    Abstract: An improved zeolite having a high number of strong acid sites wherein said zeolite has an AAI of at least 1.0. In a preferred embodiment, such zeolite is produced by controlling conditions after production of the crystalline structure such that loss of tetrahedral aluminum is minimized to thereby provide a zeolite with the above defined AAI.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: October 26, 2004
    Assignee: ABB Lummus Global, Inc.
    Inventors: Rudolf Overbeek, Nelleke van der Puil, Chuen Y. Yeh, Lawrence L. Murrell, Yun-Feng Chang, Philip Jay Angevine, Johannes Hendrik Koegler
  • Publication number: 20040162454
    Abstract: A process for alkylation of a hydrocarbon compound includes providing a catalyst including a zeolite Y having a crystal size of no more than 100 nm, and reacting an alkylatable hydrocarbon with an alkylating agent in the presence of the catalyst under alkylation reaction conditions to provide a gasoline product having a Research Octane Number of over 99.5.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 19, 2004
    Applicant: ABB Lummus Global Inc.
    Inventors: Xiangtao Gao, Johannes Hendrik Koegler, Lawrence L. Murrell, Philip J. Angevine
  • Publication number: 20040106835
    Abstract: An olefin metathesis catalyst consists essentially of a transition metal or oxide thereof supported on a high purity silica support possessing low amounts of acidic or basic sites such that in the reaction of pure butene-1 over said catalyst under metathesis reaction conditions the reaction possesses a weight selectivity to hexene-3 of at least 55 wt %.
    Type: Application
    Filed: November 10, 2003
    Publication date: June 3, 2004
    Inventors: Robert J. Gartside, Marvin I. Greene, Ali M. Khonsari, Lawrence L. Murrell
  • Patent number: 6683019
    Abstract: An olefin metathesis catalyst consists essentially of a transition metal or oxide thereof supported on a high purity silica support possessing low amounts of acidic or basic sites such that in the reaction of pure butene-1 over said catalyst under metathesis reaction conditions the reaction possesses a weight selectivity to hexene-3 of at least 55 wt %.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: January 27, 2004
    Assignee: ABB Lummus Global Inc.
    Inventors: Robert J. Gartside, Marvin I. Greene, Ali M. Khonsari, Lawrence L. Murrell
  • Patent number: 6667017
    Abstract: A process for oxidizing environmentally harmful compounds which participate in atmospheric photochemical reactions to produce for example ozone and undesirable smog constituents from a fluid, in particular a gas, volatile organic compounds (VOC) including hydrocarbons, CO and any other constituent that participates in atmospheric photochemical reactions to produce for example ozone or smog constituents and combustible compounds to be removed from a gas stream for reasons of toxicity, photochemical reactivity or physical discomfort such as irritants, particulates, odor sources and so on, and compounds which may cause upper atmosphere ozone depletion or lower atmosphere ozone formation. The uncoated randomly oriented mesh-like structure preferably has a porosity greater than about 85%. The coated randomly oriented mesh-like structure preferably has a porosity greater than about 65%.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: December 23, 2003
    Assignee: ABB Lummus Global, Inc.
    Inventors: Lawrence L. Murrell, Rudolf Overbeek, Robert E. Trubac, Pieter Lusse, Balachandran Ramachandran
  • Publication number: 20030180205
    Abstract: An apparatus for converting at least one nitrogen oxide, such as NO1O2, or N2O converts oxide in the presence of a catalyst supported on a metal mesh-like structure. The mesh-like structure is preferably fibrous formed of metal or ceramic fibers which may include knitted wire, sintered metal fibers and so on and has a porosity greater than about 85%. The mesh is formed into channels, preferably corrugations, and includes vortex generators, which generate turbulence to create a pressure differential across the mesh, to promote flow of fluids through the mesh pores which normally do not exhibit flow therethrough in the absence of such pressure differential. Preferred embodiments of structured packing and monoliths are disclosed each having a catalyst preferably in the mesh pores and/or coated on the fibers for converting the nitrogen oxide.
    Type: Application
    Filed: March 10, 2003
    Publication date: September 25, 2003
    Inventors: Joakim A. Carlborg, Yun-Feng Chang, Lawrence L. Murrell, Robert E. Trubac, Rudolf A. Overbeek, Verena R. Schmidt, Chuen Y. Yeh, Lothar Schuh
  • Patent number: 6534022
    Abstract: An apparatus for converting at least one nitrogen oxide, such as NO, NO2, or N2O converts oxide in the presence of a catalyst supported on a metal mesh-like structure. The mesh-like structure is preferably fibrous formed of metal or ceramic fibers which may include knitted wire, sintered metal fibers and so on and has a porosity greater than about 85%. The mesh is formed into channels, preferably corrugations, and includes vortex generators, which generate turbulence to create a pressure differential across the mesh, to promote flow of fluids through the mesh pores which normally do not exhibit flow therethrough in the absence of such pressure differential. Preferred embodiments of structured packing and monoliths are disclosed each having a catalyst preferably in the mesh pores and/or coated on the fibers for converting the nitrogen oxide.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: March 18, 2003
    Assignee: ABB Lummus Global, Inc.
    Inventors: Joakim A. Carlborg, Yun-Feng Chang, Lawrence L. Murrell, Robert E. Trubac, Rudolf A. Overbeek, Verena R. Schmidt, Chuen Y. Yeh, Lothar Schuh
  • Publication number: 20030028063
    Abstract: An olefin metathesis catalyst consists essentially of a transition metal or oxide thereof supported on a high purity silica support possessing low amounts of acidic or basic sites such that in the reaction of pure butene-1 over said catalyst under metathesis reaction conditions the reaction possesses a weight selectivity to hexene-3 of at least 55 wt %.
    Type: Application
    Filed: June 13, 2001
    Publication date: February 6, 2003
    Inventors: Robert J. Gartside, Marvin I. Greene, Ali M. Khonsari, Lawrence L. Murrell
  • Publication number: 20020148758
    Abstract: Selective hydrodesulfurization of an olefinic gasoline fraction, e.g., cracked gasoline, is accomplished by use of a catalyst of a noble metal supported on an acidic support. Such a catalyst reduces the sulfur content to acceptable levels, while minimizing hydrogenation of olefins to retain octane quality of the treated gasoline fraction.
    Type: Application
    Filed: February 8, 2001
    Publication date: October 17, 2002
    Inventors: Yun-Feng Chang, Lawrence L. Murrell, Frits M. Dautzenberg, Luc Palmen
  • Publication number: 20020141912
    Abstract: A process for oxidizing environmentally harmful compounds which participate in atmospheric photochemical reactions to produce for example ozone and undesirable smog constituents from a fluid, in particular a gas, volatile organic compounds (VOC) including hydrocarbons, CO and any other constituent that participates in atmospheric photochemical reactions to produce for example ozone or smog constituents and combustible compounds to be removed from a gas stream for reasons of toxicity, photochemical reactivity or physical discomfort such as irritants, particulates, odor sources and so on, and compounds which may cause upper atmosphere ozone depletion or lower atmosphere ozone formation. The uncoated randomly oriented mesh-like structure preferably has a porosity greater than about 85%. The coated randomly oriented mesh-like structure preferably has a porosity greater than about 65%.
    Type: Application
    Filed: September 21, 2001
    Publication date: October 3, 2002
    Inventors: Lawrence L. Murrell, Rudolf Overbeek, Robert E. Trubac, Pieter Lusse, Balachandran Ramachandran
  • Publication number: 20020111522
    Abstract: An improved zeolite having a high number of strong acid sites wherein said zeolite has an AAI of at least 1.0. In a preferred embodiment, such zeolite is produced by controlling conditions after production of the crystalline structure such that loss of tetrahedral aluminum is minimized to thereby provide a zeolite with the above defined AAI.
    Type: Application
    Filed: October 17, 2001
    Publication date: August 15, 2002
    Inventors: Rudolf Overbeek, Nelleke van der Puil, Chuen Y. Yeh, Lawrence L. Murrell, Yun-Feng Chang, Philip Jay Angevine, Johannes Hendrik Koegler
  • Patent number: 6417376
    Abstract: A process for selectively oxidizing an organic molecule by reacting said organic molecule and oxygen in the presence of a selective oxidation catalyst supported on a mesh-like structure.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: July 9, 2002
    Assignee: ABB Lummus Global Inc.
    Inventors: Chuen Y. Yeh, Lawrence L. Murrell, Pal Rylandshom, Robert E. Trubac, Rudolf A. Overbeek, Chiung Y. Huang, Cemal Ercan, Nelleke Vander Puil, Herbert E. Barner
  • Publication number: 20020068026
    Abstract: A catalytic reactor and process wherein the reactor contains a fixed catalyst bed comprised of at least one layer of a mesh having catalyst particles and/or catalyst fibers retained in the interstices of the mesh, wherein the catalyst particles have an average particle size of no greater than 200 microns and the fibers have a diameter of no greater than 500 microns and wherein the wire mesh layer has a void volume of at least 45%.
    Type: Application
    Filed: August 7, 1998
    Publication date: June 6, 2002
    Inventors: LAWRENCE L. MURRELL, FRITS M. DAUTZENBERG, RUDOLF A. OVERBEEK, BRUCE J. TATARCHUK
  • Publication number: 20020044901
    Abstract: A method for desulfurizing gases is provided in which microdomains or microcrystals, of cerium oxide are provided within an alumina substrate. The cerium oxide microdomains within the alumina react within the sulfur in the gases to reduce the sulfur content of the effluent gas. The use of microdomains provides a high surface area of cerium oxide, and a stable surface area of the cerium oxide, which react in a rapid fashion with the sulfur-containing molecules leading to effective desulfurization to levels produced by thermodynamic calculations of the effluent gas.
    Type: Application
    Filed: September 5, 1995
    Publication date: April 18, 2002
    Inventors: WILLIAM G. WILSON, LAWRENCE L. MURRELL