Patents Assigned to UOP Inc.
  • Patent number: 4717781
    Abstract: Unsaturated hydrocarbons may be prepared by subjecting a dehydrogenatable hydrocarbon to dehydrogenation in the presence of a dehydrogenation catalyst. The effluent stream from this step, comprising unconverted hydrocarbons, dehydrogenated hydrocarbons, hydrogen and steam, may then be passed to a selective oxidation step in which the hydrogen is selectively oxidized in the presence of an oxygen-containing gas to the substantial exclusion of the oxidation of the hydrocarbons. The oxidation catalyst which is employed will comprise a Group VIII noble metal, a Group IVA metal and a Group IA or IIA metal composited on a metal oxide support. The metal oxide support such as alumina will possess a particular configuration having one or more open channels such as a tubular or cartwheel particle having an outside to inside diameter ratio of the channels ranging from 1.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: January 5, 1988
    Assignee: UOP Inc.
    Inventors: Tamotsu Imai, Jeffery C. Bricker, Tai-Hsiang Chao, Maureen L. Bricker
  • Patent number: 4717481
    Abstract: An apparatus is disclosed for improving the separation of fluids having different densities which apparatus employs a velocity reducing distributor for directing fluids in a vertical direction through a bed of packing to coalesce the fluids and a means to alter the direction of flow of the coalesced fluids to a horizontal direction. The disclosed apparatus is of particular advantage with respect to the gravitational separation of fluids having different densities which comprise an aqueous phase and a hydrocarbonaceous phase.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: January 5, 1988
    Assignee: UOP Inc.
    Inventors: Bruce E. Staehle, David L. Holbrook
  • Patent number: 4715947
    Abstract: A process for the conversion of residual asphaltene-containing hydrocarbonaceous charge stock to selectively produce large quantities of high quality middle distillate while minimizing hydrogen consumption.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: December 29, 1987
    Assignee: UOP Inc.
    Inventor: Darrell W. Staggs
  • Patent number: 4716143
    Abstract: A novel catalytic composite comprising a platinum group metal component; a modifier metal component selected from the group consisting of a tin component, germanium component, rhenium component and mixtures thereof; an alkali or alkaline earth metal component or mixtures thereof, an optional halogen component, and an optional catalytic modifier component on a refractory oxide support having a nominal diameter of at least about 850 microns. The distribution of the platinum group metal component is such that the platinum group component is surface-impregnated where substantially all of the platinum group metal component is located at most within a 400 micron exterior layer of the support. The effective amount of the modifier metal component may be uniformly impregnated throughout the refractory oxide support, surface-impregnated, or located in any other appropriate fashion.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: December 29, 1987
    Assignee: UOP Inc.
    Inventor: Tamotsu Imai
  • Patent number: 4714512
    Abstract: The polyurethanes resulting from curing isocyanate-terminated urethane prepolymers with a N,N'-dialkylmethylenedianiline are broadly useful as coatings on the surface of objects made of metal, wood, glass, or plastic. Such coatings may be made based on either a 1-pack systemor 2-pack system. The diamine N,N'-di(2-butyl)4,4'-methylenedianiline is a particularly useful diamine.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: David W. House, Ray V. Scott, Jr.
  • Patent number: 4714482
    Abstract: Thin film polymer blend membranes which may be used for the separation of gases will consist of a blend of an inorganic compound such as phosphoric acid, sulfuric acid, heteropoly acids or salts of heteropoly acids, an organic polymer such as poly(vinyl alcohol) and a poly organic acid such as poly(acrylic acid), poly(methacrylic acid) or poly(styrene sulfonic acid). The thin film membrane composites may be used as gas separation or gas sensor devices.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: Anthony J. Polak, Ping Young
  • Patent number: 4714539
    Abstract: A novel hydrocarbon conversion process for the reforming of naphtha charge stocks containing less than 300 wt. ppb sulfur is disclosed. The process utilizes a catalytic composite comprising a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed tin component and a surface-impregnated metal component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, iridium, and mixtures thereof. When this catalytic composite is used in the reforming of low sulfur level hydrocarbons at low pressures significant improvements in activity stability is observed compared to catalysts of the prior art.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: Mark D. Moser, R. Joe Lawson
  • Patent number: 4714540
    Abstract: A novel hydrocarbon conversion process for the reforming of naphtha charge stocks containing less than 50 wt. ppm water is disclosed. The process utilizes a catalytic composite comprising a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed tin component and a surface-impregnated metal component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, iridium, and mixtures thereof. When this catalytic composite is used in the reforming of low water level hydrocarbons at low pressures significant improvements in activity stability is observed compared to catalysts of the prior art.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: Mark D. Moser, R. Joe Lawson
  • Patent number: 4714538
    Abstract: A novel trimetallic catalytic composite, a method of manufacture and process use thereof is disclosed. The composite comprises a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed tin component and a surface-impregnated metal component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, or iridium. When this catalytic composite is used in the reforming of hydrocarbons at low pressures significant improvements in activity stability is observed compared to catalysts of the prior art.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: Mark D. Moser, Randy J. Lawson
  • Patent number: 4714692
    Abstract: A catalyst composition for synthesis gas conversion comprising a ruthenium metal component deposited on a support carrier wherein the average metal particle size is less than about 100 A. The method of manufacture of the composition via a reverse micelle impregnation technique and the use of the composition in a Fischer-Tropsch conversion process is also disclosed.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: Hayim Abrevaya, William M. Targos
  • Patent number: 4714693
    Abstract: A reverse micelle impregnant solution comprising a hydrocarbon solvent, a surfactant having both polar and nonpolar characteristics and a metal ion containing water core wherein the concentration of said metal ion in said water core is greater than 0.1 moles/liter. The reverse micelle is prepared by first dissolving a metal compound in water. In order to maintain a minimum water core diameter a small amount of the aqueous solution is then added to a surfactant/hydrocarbon solution to form the reverse micelle impregnant solution. Metals contemplated include the platinum metals and Group VIII metals. The surfactant may be nonionic, anionic or cationic or any combination thereof. A reverse micelle solution containing co-surfactants and/or co-metals is also contemplated.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventor: William M. Targos
  • Patent number: 4714783
    Abstract: A process for separating ortho- or meta-nitrobenzaldehyde from a feed mixture comprising ortho-nitrobenzaldehyde or metal-nitrobenzaldehyde and at least one other isomer from which the ortho- or metal-isomer is to be separated. The feed mixture is contacted at adsorption conditions with meta-selective adsorbent comprising a type X zeolite having sodium or lithium cations at exchangeable cationic sites or with an ortho-selective adsorbent comprising a type Y zeolite having alkali metal or alkaline earth metal cations at exchangeable cationic sites or a phosphate-substituted crystalline, aluminum silicate zeolite. Preferred desorbents are lower alkyl acetates and formates, acetonitrile and benzaldehyde.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: December 22, 1987
    Assignee: UOP Inc.
    Inventors: Hermann A. Zinnen, Thad S. Franczyk
  • Patent number: 4713167
    Abstract: A multiple single-stage process for the conversion of heavy hydrocarbonaceous charge stock into a lower boiling distillate hydrocarbon product. Fresh charge stock and hydrogen are introduced into a first catalytic reaction zone for substantially 100% conversion of the feed. Hydrocracked product effluent from the first hydrocracking reaction zone which comprises a predetermined distillate fraction is passed with an accucracked effluent from a second catalytic hydrocracking or accucracking reaction zone into a separation zone and separated into various hydrocarbon streams including a light hydrocarbon stream comprising the distillate product, a middle hydrocarbon stream and a heavy hydrocarbon stream. The middle hydrocarbon stream comprising said distillate fraction and hydrogen is introduced into the second catalytic hydrocracking or accucracking reaction zone for conversion into a lower boiling accucracked effluent stream comprising the distillate hydrocarbons boiling in the distillate product range.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: December 15, 1987
    Assignee: UOP Inc.
    Inventors: Mark E. Reno, Robert K. Olson, Tom N. Kalnes
  • Patent number: 4710357
    Abstract: An apparatus for the cooling of hot fluidized solid particles such as catalyst of an FCC petroleum refining process includes a conduit in which particles flow downward from a first dense phase fluidized bed into a cooling chamber and contact the shell side of a vertically oriented shell and tube heat exchanger where cooling occurs via indirect heat exchange with a cooling medium circulating in the tubes. The extent of cooling is controlled by the varying of the heat transfer coefficient between the tubes and particles in the heat exchanger. The coefficient is varied by changing the quantity of fluidizing gas fed to the fluidized bed in the heat exchanger. The heat exchanger is located within a lower portion of the cooling chamber totally below the particle inlet and outlet conduits. The heat exchanger can therefore be removed from service and protected by being buried under unfluidized relatively cool catalyst. The fluidizing gas supports combustion within a lower combustion zone.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: December 1, 1987
    Assignee: UOP Inc.
    Inventors: Ismail B. Cetinkaya, Daniel N. Myers
  • Patent number: 4710278
    Abstract: Apparatus and method for removing hydrogen from a gaseous mixture containing hydrogen or a component capable of dissociating into hydrogen ions using a solid electrolyte concentration cell. A novel solid electrolyte membrane is used which comprises an organic polymer-inorganic compound blend prepared by admixing an organic polymer such as poly(vinyl alcohol) with a heteropoly acid or salt thereof such as dodecamolybdophosphoric acid in a mutually miscible solvent.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: December 1, 1987
    Assignee: UOP Inc.
    Inventors: Anthony J. Polak, Allyson J. Beuhler
  • Patent number: 4709003
    Abstract: Largely alkylated polyamines which may be viewed as low molecular weight polymers of x-amino-y-methylenephenyl are effective curing agents for a diverse class of urethane prepolymers. The resulting polyurethanes are thermosetting polymers with excellent compression set and tensile strength. Because the properties of the resulting polyurethane vary only slightly near the optimum stoichiometry of curing agent-prepolymer, the use of the curing agents of this invention presents the advantage of being very tolerant of operator mixing error.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: November 24, 1987
    Assignee: UOP Inc.
    Inventors: Ray V. Scott, Jr., William M. Baumann, David W. House
  • Patent number: 4709111
    Abstract: A process flow for a catalytic oligomerization process is presented. The feed contacts a solid catalyst in a tubular reactor cooled by indirect heat exchange. The mixed-phase coolant used in the reactor is the reactor effluent itself, which has been cooled by indirect heat exchange and depressurized. The reactor effluent is then passed into a rectified separation zone. The heat picked up by the effluent stream in the reactor is thereby used in separating light hydrocarbons from the effluent to produce a recycle stream.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: November 24, 1987
    Assignee: UOP Inc.
    Inventor: Dennis J. Ward
  • Patent number: 4708981
    Abstract: Water-insoluble proton-conducting polymers which may be formed into membranes which are used in gas separation or gas sensing processes comprise an interpenetrating polymer network. This IPN is formed from the interaction between a host polymer and a guest polymer which is subsequently cross-linked or cured. The host polymer blend is formed from a phosphoric acid or sulfuric acid and a polymer or copolymer of a compound which possesses repeat units such as, for example, hydroxy ethylene, vinyl sulfonic acid, ethylene imine, etc, while the guest polymer is formed from a monofunctional monomer such as methacrylic acid and a difunctional cross-linking agent such as methylenebisacrylamide.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: November 24, 1987
    Assignee: UOP Inc.
    Inventors: Joseph J. Zupancic, Raymond J. Swedo, Sandra Petty-Weeks
  • Patent number: 4707190
    Abstract: Maltose is separated from mixtures with glucose, DP3 and DP4+ polysaccharides by adsorption on low aluminum Y-type zeolites, i.e., having up to about 15 atoms of aluminum per unit cell and desorbing the adsorbate with water.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: November 17, 1987
    Assignee: UOP Inc.
    Inventor: Walter H. Goodman
  • Patent number: 4705620
    Abstract: A process is disclosed for treating a sour hydrocarbon stream comprising extracting the mercaptans contained in said hydrocarbon stream with an alkaline solution in an extraction zone, oxidizing the mercaptans to disulfides in the presence of an oxidation catalyst, separating said disulfide from said alkaline solution, reducing the residual disulfides in said alkaline solution to mercaptans and recycling said alkaline solution to the extraction zone. Two ways are disclosed to effect the reduction of the disulfides to mercaptans: (1) hydrogenation with a supported metal catalyst and (2) electrochemical reduction.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: November 10, 1987
    Assignee: UOP Inc.
    Inventors: Jeffery C. Bricker, Bruce E. Staehle