Liquid Patents (Class 406/47)
  • Patent number: 9557109
    Abstract: An apparatus for manufacturing molten metal has a stationary electric furnace, a raw material charging chute, and exhaust duct and a secondary combustion burner in the furnace top, and a shock generator. The raw material charging chute is in one end of the furnace in a width direction and an electric heating region is spaced from the raw material charging chute in the width direction. A raw material layer having a sloping surface extends downward from the one end of the furnace having the raw material charging chute toward the electric heating region, the sloping surface supporting a metal agglomerate raw material layer. The shock generator is provided at least partially within the raw material and extends to the sloping surface, to be in contact with the metal agglomerate raw material layer, and to mechanically overcome hanging of the metal agglomerate raw material layer on the sloping surface.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 31, 2017
    Assignee: Kobe Steel, Ltd.
    Inventor: Masahiko Tetsumoto
  • Patent number: 8801341
    Abstract: Guiding system defining a moving path for containers having a collar, the system being adapted to be associated to a system for applying a pneumatic force on said containers so as move the containers the one after the other along the moving path according to a forward moving direction, the guiding system including at least a component for reducing the friction between at least the collar of the containers and guide profiles of the guide system, wherein the component includes lubricant dispensing channels having each an inlet, and an outlet associated to a groove.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: August 12, 2014
    Inventor: Pieter Turck
  • Publication number: 20140119841
    Abstract: A method of transporting solid particulates in an aqueous suspension of the solid particulates, comprising dispersing solid particulates in an aqueous liquid in the presence of at least one mineral suspending agent, wherein solid particulates are transported a distance greater than or equal to 200 m.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: ACTIVE MINERALS INTERNATIONAL
    Inventors: Robert J. PURCELL, Jr., Dennis C. PARKER, Matthew J. LYMAN, James M. SMITH
  • Patent number: 8656950
    Abstract: A method of producing treated liquid hydrocarbons. The method begins by pressurizing a latex in a pressure vessel. This is followed by flowing the latex from the pressure vessel into a pipeline containing liquid hydrocarbons to produce treated liquid hydrocarbons. In this embodiment the latex comprises a drag reducing polymer.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 25, 2014
    Assignee: Phillips 66 Company
    Inventor: Timothy L. Burden
  • Publication number: 20140050540
    Abstract: A microfabricated sheath flow structure for producing a sheath flow includes a primary sheath flow channel for conveying a sheath fluid, a sample inlet for injecting a sample into the sheath fluid in the primary sheath flow channel, a primary focusing region for focusing the sample within the sheath fluid and a secondary focusing region for providing additional focusing of the sample within the sheath fluid. The secondary focusing region may be formed by a flow channel intersecting the primary sheath flow channel to inject additional sheath fluid into the primary sheath flow channel from a selected direction. A sheath flow system may comprise a plurality of sheath flow structures operating in parallel on a microfluidic chip.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: CYTONOME/ST, LLC
    Inventors: John R. Gilbert, Manish Deshpande, Bernard Bunner
  • Patent number: 8616236
    Abstract: A method begins by obtaining a slipstream of a liquid. The slipstream of liquid is then mixed upstream of an injection pump with a latex comprising a drag reducing polymer to produce a drag reducing mixture. The drag reducing mixture is then injected into a liquid hydrocarbon to produce a treated liquid hydrocarbon.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: December 31, 2013
    Assignee: Phillips 66 Company
    Inventor: Timothy L. Burden
  • Patent number: 8603786
    Abstract: A system for the production of ethanol and co-products is provided. The system facilitates an overall reduction in the use of energy, for example, by reducing the mass of wet solids supplied to a distillation system. The system also reduces the amount of energy used to dry the wet solids component of a fermentation product, for example, by increasing the ethanol concentration of the wet solids. The system also facilitates the recovery of co-products including bioproducts and other biochemicals extracted from components of the fermentation product. The solids component of the fermentation product may be dried and constituted into a meal that may be used for animal feed, among other uses.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: December 10, 2013
    Assignee: Poet Research, Inc.
    Inventor: Steven G. Redford
  • Patent number: 8596931
    Abstract: A method includes the steps of: adding an organic surface cross-linking agent to a water absorbent resin having a cross-linked structure; adding a liquid permeability improving agent to the water absorbent resin concurrently with or after the addition of the organic surface cross-linking agent; and then adding a lubrication improving agent to the water absorbent resin. This provides a particulate water absorbing agent and a method for producing it, the particulate water absorbing agent being suitable for pneumatic transportation, suffering no decrease in the effect of the liquid permeability improving agent, and excelling in properties such as fluidity and damage resistance after the pneumatic transportation.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 3, 2013
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Teruhisa Nagashima, Masatoshi Nakamura, Yusuke Watanabe, Kozo Nogi, Kunihiko Ishizaki
  • Patent number: 8450251
    Abstract: A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8450249
    Abstract: A method of introducing a drag reducing polymer into a pipeline such that the friction loss associated with the turbulent flow though the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is introduced into a liquid hydrocarbon having an asphaltene content of at least 3 weight percent and an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon. The treated liquid hydrocarbon does not have a viscosity less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. Additionally, the drag reducing polymer is added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8450250
    Abstract: A method of preparing a drag reducing polymer wherein the drag reducing polymer is able to be injected into a pipeline, such that the friction loss associated with the turbulent flow through the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is injected into a pipeline of liquid hydrocarbon hydrocarbon having an asphaltene content of at least 3 weight percent and an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon wherein the viscosity of the treated liquid hydrocarbon is not less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. The drag reducing polymer has a solubility parameter within 4 MPa1/2 of the solubility parameter of the liquid hydrocarbon. The drag reducing polymer is also added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8426498
    Abstract: A method of introducing a drag reducing polymer into a pipeline such that the friction loss associated with the turbulent flow though the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is introduced into a liquid hydrocarbon having an asphaltene content of at least 3 weight percent and/or an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon. The treated liquid hydrocarbon does not have a viscosity less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. Additionally, the drag reducing polymer is added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 23, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8360692
    Abstract: Provided is an apparatus for transferring slurry, which is used to transfer minerals from the bottom of the sea to the ground; and, more particularly, to an apparatus for transferring slurry, which can efficiently transfer the slurry in the state of a solid-liquid mixture containing the minerals without clogging of a transfer pipe.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: January 29, 2013
    Assignee: Korea Institute of Geoscience and Minderal Resources (KIGAM)
    Inventors: Chi-Ho Yoon, Young-Ju Kim, Yong-Chan Park, Young-Kyu Hwang
  • Patent number: 8022118
    Abstract: A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: September 20, 2011
    Assignee: ConocoPhillips Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Jr., Kenneth W. Smith, William F. Harris
  • Publication number: 20100303557
    Abstract: A method for conveying material by applying a pressure difference in a conveying conduit (4), in which method the material is fed into the conveying conduit (4) and in the conveying conduit further into a separating device (5), where the material being conveyed is separated from conveying air, in which method a negative pressure is created in the conveying conduit (4) by means of an ejector apparatus (6), whose suction side is connected to the separating device (5), said ejector apparatus being operated using an operating medium consisting of a liquid mist, especially an aqueous liquid mist, said medium being sprayed through at least one spraying nozzle (122) into an ejector tube (128) directed into a separating element (38). In the method, the generation of the negative pressure to be produced is intensified according to need by limiting the flow of gases, such as air, into the ejector tube (128) from the direction opposite to the spraying direction of its operating medium, i.e.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 2, 2010
    Inventor: Goran SUNDHOLM
  • Patent number: 7300521
    Abstract: An insulation system comprising: a supply of material having discrete elements; an applicator assembly for installation of the material having discrete elements to a surface; and a scrubber for finishing the face of the material, the scrubber including: (a) a vacuum conduit; (b) a blade assembly attached to the vacuum conduit; (c) a drive for the blade assembly; and (d) a vacuum substantially adjacent the face of the material during finishing. In the one embodiment, the system comprises a transporter system downstream of the supply of material having discrete elements for delivery of the material to the applicator assembly. Also, in one embodiment, the blade assembly comprises an axis of rotation perpendicular to the face of the material during finishing.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: November 27, 2007
    Assignee: U.S. Greenfiber, LLC
    Inventors: David J. Bowman, Patrick A. Dwyer, Benjamin D. Underwood, David S. Wilburn, Christi L. Kingsley
  • Patent number: 7080960
    Abstract: An apparatus for transporting solid waste drill cuttings material produced in the drilling of an oil or gas well, the apparatus including: a waste supply apparatus; a feeder to transport the material; a pneumatic conveying apparatus to which the material is transferred from the feeder; at least one blockage sensing device in the conveyor; and a control apparatus for controlling feed rate of the feeder.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: July 25, 2006
    Assignee: Varco I/P, Inc.
    Inventor: George Alexander Burnett
  • Patent number: 6851896
    Abstract: A fluid barrier along the inside surface of ductwork between a reactor and subsequent product separation and recovery apparatus to reduce the buildup of solids on the ductwork from a gaseous product mixture conveyed through the ductwork. Barrier fluid is sprayed along the internal surface of the ductwork to form a fluid barrier and cool the gaseous mixture. The barrier fluid can be comprised of a component of the gaseous mixture. The barrier fluid can be a liquid at the second temperature and converted to a gaseous state in the ductwork, using the heat of vaporization of the barrier fluid to help cool the gaseous mixture.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: February 8, 2005
    Assignee: Kerr-McGee Chemical, LLC
    Inventors: Harry Eugene Flynn, Robert O. Martin, Charles A. Natalie
  • Publication number: 20030235473
    Abstract: Bulk material discharge assemblies comprise a bulk material hopper, a conduit for delivering an air stream to entrain with bulk material from the bulk material hopper, and a feeding apparatus for introducing additive to the conduit. The feeding apparatus comprises an additive hopper and an airlock positioned adjacent the conduit. In addition, metering apparatus are provided that comprise an axle and first and second metering wheels. A noncircular perimeter of the axle and the shape of each hub opening of each of the metering wheels cooperate to nonrotatably mount each metering wheel to the axle. The first and second metering wheel are adapted to be selectively mounted in at least one of a first relative position and a second relative position.
    Type: Application
    Filed: March 14, 2003
    Publication date: December 25, 2003
    Inventors: Douglas E. Wysong, Michael P. Essen
  • Patent number: 6079911
    Abstract: A device for the contamination-free conveying of powders which has a movable cone arranged within a discharge hopper, which, when in an open position, forms an annular gap between itself and the wall of the hopper. The amount of powder which is discharged through the annular gap is controlled by the amount of time the cone remains in the open position. The powder which is discharged from the hopper is supplied to a liquid jet pump, and is conveyed by the liquid jet formed by the liquid jet pump to a dispersing or dissolving tank.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: June 27, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Wangermann, Alan Viets, Bernd Klinksiek
  • Patent number: 6036406
    Abstract: A truck is equipped with a grass seed hopper from which seed is fed into a blower pressurized conduit air flow by an air lock feeder at a first station. A motor with speed control drives the feeder and determines the rate of seed discharge. A tank on the truck permits the pumped flow of tank contents, water and/or fertilizer, into the conduit carried pressurized air flow. Organic material carried by the truck is conveyed forward by a moving floor toward augers which feed the organic material to a powered mixer for breaking up of the material to ensure passage of loose material into a rotary feeder at a second station. The feeder discharges into a mixing chamber whereat grass seed, discharged from the pressurized conduit, mixes with the organic material for subsequent discharge onto a ground surface via a flexible hose.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: March 14, 2000
    Assignee: Rexius Forest By-Products, Inc.
    Inventor: Arlen L. Rexius
  • Patent number: 5318408
    Abstract: A method for the start up of a concrete pump using a small amount of an aqueous suspension of polymers, amorphous silicone dioxide and water-reducer rather than a conventional cement slurry.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: June 7, 1994
    Assignee: Sika AG, vorm. Kaspar Winkler & Co.
    Inventor: Nils Davidsson
  • Patent number: 5193942
    Abstract: An improved method and device to prevent erosion of slurry transport devices is disclosed which uses liquid injection to prevent contact by the slurry composition with the inner surface of the walls of the transport system. A non-abrasive liquid is injected into the slurry transport system and maintains intimate contact with the entire inner surface of the transport system, thereby creating a fluid barrier between the non-abrasive liquid and the inner surface of the transport system which thereby prevents erosion.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: March 16, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Gregory F. Berry, Robert W. Lyczkowski, Chi-Sheng Wang
  • Patent number: 4801210
    Abstract: A continuous mixer is provided for combining bulk materials metered at a relatively slow rate into a liquid stream and is particularly useful for preparing an innoculant solution for treating feed pellets, seed or the like. The mixer has a vertical separation tube extending between a screw feeder and a mixing zone in a liquid conduit therebelow, and the tube is independently pressurized with air to substantially preclude ascent of liquids within the tube to ensure that all of the mixing occurs within the liquid line and to prevent the liquid from rising to a level sufficient for wetting the innoculants stored within a hopper adjacent the screw feeder. Air pressure within the tube is selectively adjustable in order to vary the spray produced by a nozzle at the end of the fluid conduit from a liquid stream essentially free of air to a finely dispersed fog which includes substantial quantities of air.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: January 31, 1989
    Inventor: Michael Gian
  • Patent number: 4721420
    Abstract: A method and composition are provided for transporting coarse particles of coal in a dense liquid CO.sub.2 media. The dense media contains fine particles of densifying material such as coal or magnetite which form a suspension in the liquid CO.sub.2. The suspension is capable of supporting large particles of coal for transportation in a liquid CO.sub.2 slurry pipeline. Use of the dense media allows the pumping of the coarse coal particles at slower velocities than if the fine densifying particles were not present.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: January 26, 1988
    Assignee: Arthur D. Little, Inc.
    Inventors: Chakra J. Santhanam, Richard W. Hanks, R. Peter Stickles
  • Patent number: 4707162
    Abstract: A pumpable slurry of material particles in water comprises coarse mineral particles having a particle size in the range 5 to 50 mm and fine mineral particles having a size less than 200 micron. The slurry contains 82 to 85%, preferably 83-85%, by weight of mineral particles based on the combined weight of the mineral particles and water. At least 30% by weight of the mineral particles are in the form of coarse particles, 10 to 40% by weight are in the form of fine particles and the balance to 100% by weight are intermediate sized particles.The mineral particles are preferably coal.Slurries of this concentration have special properties in that they are sufficiently fluid to be pumped through a pipeline, yet sufficiently solid when static to be handled by grabs and similar devices.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: November 17, 1987
    Assignee: The British Petroleum Company p.l.c.
    Inventor: David A. Brookes
  • Patent number: 4704134
    Abstract: Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is ground, sized and then admixed in suitable portions with water to form a fluidic, liquid-solid fuel system comprising a nonpolluting, stable, transportable, high energy fuel. The fuel system can be fired directly or the char can be separated and fired as a solid fuel. The liquid organic fraction obtained from the low boiling fractions derived from the pyrolysis of coal is used as a fuel or as a feed stock.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: November 3, 1987
    Assignee: Carbon Fuels Corporation
    Inventors: Edmond G. Meyer, Lee G. Meyer
  • Patent number: 4702747
    Abstract: Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is ground, sized and then admixed in suitable portions with a liquid carbon dioxide to form a fluidic, liquid-solid mixture which is a transportation medium for a nonpolluting, stable, high energy solid fuel composition. The liquid organic fraction obtained from the low boiling fractions derived from the pyrolysis of coal is used as a feedstock or as a liquid hydrocarbon fuel.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: October 27, 1987
    Assignee: Carbon Fuels Corporation
    Inventors: Edmond G. Meyer, Lee G. Meyer
  • Patent number: 4689173
    Abstract: Slurries of pentaerythritol in a liquid oil in which pentaerythritol is substantially insoluble are disclosed. The slurries can contain up to 70 percent by weight or more of solid pentaerythritol. Suitable oils include propylene glycol, ethylene glycol, vegetable oils, glycerin and tall oil fatty acid. The slurries are stable and flowable allowing for shipment in bulk.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: August 25, 1987
    Assignee: International Minerals & Chemical Corporation
    Inventor: Paul E. Eckler
  • Patent number: 4685840
    Abstract: A method of transporting large diameter solids, such as coal having a diameter of greater than 1 inch, preferably eight to twelve inches, predicated on pipe diameter, in the form of a slurry through a pipeline is disclosed. The method comprises the step of placing large diameter solids in a vehicle and pumping it through a pipeline. The specific gravity of the vehicle is substantially equal to the specific gravity of the solids so that the coal remains in suspension over a wide range of pipeline velocities. A lubricant is added to the vehicle to reduce friction and enhance energy efficiency of the process. The coal is pumped from a pumping tank into which the solids and vehicle are introduced, the pumping tank, after filling, is pressurized with a fluid such as air or inert gas to propel the mixture through the pipeline. This pump and its valving allows large diameter solids to be pumped through the pipeline.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: August 11, 1987
    Inventor: Robert C. Wolff
  • Patent number: 4645514
    Abstract: Coal-aqueous slurries having improved shear stability and lower viscosity are described. The use of a plurality surfactants each having hydrophilic portion with each surfactant hydrophilic portion having a different molecular weight are utilized in sufficient amounts to wet and disperse particulate coal and water. When two surfactants are utilized, coal-aqueous mixtures may be formulated having up to or over 70% by weight coal when the first surfactant has a hydrophilic portion comprising a relatively large number of ethylene oxide units and the second surfactant has hydrophilic portion comprising a relatively small number of ethylene oxide units.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: February 24, 1987
    Assignee: Oxce Fuel Company
    Inventor: Robert H. Lane
  • Patent number: 4637418
    Abstract: Liquid containing composition, and the transport of pumping thereof are disclosed, which compositions achieve maximum fluid friction reduction properties at low concentration of a drag reducing agent such as less than 0.015% by weight and preferably less than 0.01% by weight. The drag reducing agent is a polymer of 2-acrylamido-2-methylpropanesulfonic acid. Finely divided solids, such as coal, may be suspended therein.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: January 20, 1987
    Assignee: Henkel Corporation
    Inventor: Curtis L. Karl
  • Patent number: 4552568
    Abstract: A method for preparing a coal-water slurry is described, comprising the divided addition of dispersing agent or multi-step addition of dispersing agent during grinding in a process for preparing a coal-water slurry by the wet grinding of coal in water.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: November 12, 1985
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Taizo Igarashi, Hisao Higuchi, Shingo Yamazaki
  • Patent number: 4536186
    Abstract: The instant invention is directed to a method of reducing the viscosity of an aqueous coal fine slurry which comprises adding poly (dimethyl diallyl ammonium chloride) to the slurry.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: August 20, 1985
    Assignee: Calgon Corporation
    Inventor: Paul A. Rey
  • Patent number: 4525173
    Abstract: A pumpable slurry of mineral particles, e.g., coal, in water contains 50 to 85% by weight of mineral particles based on the combined weight of mineral particles and water. The mineral component contains at least 30% by weight of coarse particles having a particle size in the range 5 to 50 mm, 10 to 40% by weight of fine particles having a particle size less than 200 micron and the balance to 100% of intermediate sized particles.The slurry is stable without the use of additives and can be pumped through a pipeline.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: June 25, 1985
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Peter J. Baker, David A. Brookes, Martin Johnson
  • Patent number: 4504277
    Abstract: Coal-water fuel slurries having long-term storage stability and improved viscosities and comprising finely-divided coal within efficient combustion size range, water, and minor amounts of ammonium salt organic dispersant and alkaline earth metal salt organic dispersant, and process for making such slurries.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: March 12, 1985
    Assignee: Atlantic Research Corporation
    Inventor: Robert S. Scheffee
  • Patent number: 4502868
    Abstract: Coal-water slurries having high solids contents and improved pumpability containing a viscosity improving additive comprising a sulfonated product of humic acids.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: March 5, 1985
    Assignee: Texaco Inc.
    Inventors: Farrokh Yaghmaie, Ronald J. Mc Keon
  • Patent number: 4498906
    Abstract: Coal-water fuel slurries having long-term storage stability and improved viscosities and comprising finely-divided coal within efficient combustion size range, water, and minor amounts of alkali metal salts of organic dispersants and alkaline earth metal salts of organic dispersants, and process for making such slurries.
    Type: Grant
    Filed: April 16, 1982
    Date of Patent: February 12, 1985
    Assignee: Atlantic Research Corporation
    Inventor: Robert S. Scheffee
  • Patent number: 4496367
    Abstract: A pumpable aqueous slurry of a solid fuel in the form of a pulverized, carbonaceous material and a process for the production of such slurry are described. The aqueous slurry comprises a component which consists of coarse grains of carbonaceous material having a particle size of up to 25 mm, and a further component which consists of a carrier liquid in which the coarse-grained carbonaceous material is suspended. The carrier liquid proper has a solids content of 65-90% by weight and consists of water and pulverized, carbonaceous material having a particle size of at most 0.5 mm, preferably at most 350 .mu.m, and 0.02-2% by weight of at least one additive including a water-soluble surface active compound which consists of an alkylene oxide adduct having a hydrophobic part and a hydrophilic part, said hydrophilic part consisting of a polyalkylene oxide chain, preferably a polyethylene oxide chain, having a length of 40-200 alkylene oxide units.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: January 29, 1985
    Assignees: AB Carbogel, Berol Kemi AB
    Inventors: Mait M. Mathiesen, Lars I. Gillberg, Karl M. E. Hellsten, Gunvor B. T. Karlsson
  • Patent number: 4492589
    Abstract: Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of carbonaceous material in water and improved pumpability are obtained by having present as a dispersant an alkali or ammonium bis-alkyl sulfosuccinate. An example is the sodium salt of bis-2-ethylhexyl sulfosuccinate.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: January 8, 1985
    Assignee: Diamond Shamrock Chemicals Company
    Inventors: Martin J. Schick, Edwin L. Kelley
  • Patent number: 4479362
    Abstract: The present invention is an improved process for cooling cement which comprises injecting liquid nitrogen into a pneumatic transport line used to convey the cement.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: October 30, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Thomas E. McWhorter, Barry J. Halper
  • Patent number: 4475924
    Abstract: Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is beneficiated, ground and sized and then is admixed in suitable portions with a liquid organic fraction to form a combustible, liquid-solid mixture which is a nonpolluting, stable, transportable, high energy fuel composition. Preferably, the liquid organic fraction is obtained from the low boiling fractions derived from the pyrolysis of coal.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 9, 1984
    Assignee: Meyer Trust
    Inventor: Edmond G. Meyer
  • Patent number: 4462808
    Abstract: An improved coal-water slurry containing finely divided coal particles and a dispersing agent which is comprised of a water-soluble homopolymer of a monomer represented by the formula: ##STR1## wherein: M is hydrogen, lithium, sodium, potassium, magnesium, or calcium;R is allyl or methallyl;R.sub.1 is hydrogen, allyl or methallyl;R.sub.2 is hydrogen or sulfonate;R.sub.3 is hydrogen or sulfonate; and providing that R.sub.2 is not the same as R.sub.3.These improved coal-water slurries are best formulated at a pH of at least 6 and, preferably, above 8. The dispersants have a molecular weight between 1000-20,000.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: July 31, 1984
    Assignee: Nalco Chemical Company
    Inventors: Anthony E. Gross, Merle L. Branning, Dodd W. Fong
  • Patent number: 4455149
    Abstract: A process for producing a dispersion composition suitable for use as a fuel is described, comprising kneading (a) a bituminous substance, (b) a low molecular weight aliphatic alcohol, and (c) water, a water-containing organic compound, or an aqueous organic compound suspension to provide a dispersion composition wherein the aqueous alcohol solution as a dispersed phase is dispersed in the bituminous substance as a continuous phase. By causing the phase inversion of the thus-obtained w/o type dispersion composition by kneading it along with a protective colloid at 5.degree. C. to 60.degree. C., and o/w type dispersion composition suitable for use as a fuel can be produced.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: June 19, 1984
    Assignees: Maruzen Oil Co., Ltd., Nippon Chemtec Consulting Inc.
    Inventors: Takeo Satake, Masahisa Ishigami, Kunio Arimoto, Yorishige Matsuba, Yoshikazu Inoue, Yusuke Tanaka, Kohei Kanda
  • Patent number: 4436528
    Abstract: Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of carbonaceous material in water and improved pumpability are obtained by having present a salt of naphthalenesulfonic acid formaldehyde condensate and at least one water soluble polymer selected from the group consisting of sodium alginate, guar gum, locust bean gum, carboxymethylhydroxypropyl guar gum, hydroxypropyl guar gum and guarpak guar gum. For example, a mixture of 96.8% by weight of ammonium naphthalenesulfonic acid formaldehyde condensate and 3.2% by weight of sodium alginate can be added to an aqueous coal slurry in an amount of 0.31% by weight of the slurry.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: March 13, 1984
    Assignee: Diamond Shamrock Chemicals Company
    Inventors: Martin J. Schick, Kathy A. Knitter
  • Patent number: 4417901
    Abstract: A mixed fuel of coal and oil in the form of a dispersion of coal particles in oil. The coal particles comprise coal particles (A) having a median diameter of 10 microns or less together with coal particles (B) having a median diameter of between 15 and 42 microns. The ratio of coal particles (A) to coal particles (B) is from 8:2 to 1:9. The absolute value of the difference between the median diameter and the modal diameter of all the coal particles in the mixed fuel of coal and oil is at least 2 microns. The mixed fuel preferably has a water content of 0.6% by weight or less.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: November 29, 1983
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Takashi Ando, Naoki Oka
  • Patent number: 4415338
    Abstract: Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of coal in water and improved pumpability are obtained by having present a salt of naphthalenesulfonic acid formaldehyde condensate and at least one water soluble polymer selected from the group consisting of gum karaya, mixtures of gum karaya and polyacrylamide and polysaccaride modified with polyacrylate. For example, a mixture of 61.5% by weight of ammonium naphthalenesulfonic acid formaldehyde condensate and 38.5% by weight of gum karaya can be added to an aqueous coal slurry in an amount of 0.13% by weight of the slurry.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: November 15, 1983
    Assignee: Diamond Shamrock Corporation
    Inventors: Martin J. Schick, Kathy A. Knitter
  • Patent number: 4398852
    Abstract: A method for adding and removing fine particles from a pressurized reactor is provided, which comprises connecting the reactor to a container, sealing the container from the reactor, filling the container with particles and a liquid material compatible with the reactants, pressurizing the container to substantially the reactor pressure, removing the seal between the reactor and the container, permitting particles to fall into or out of the reactor, and resealing the container from the reactor. An apparatus for adding and removing particles is also disclosed.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: August 16, 1983
    Assignee: HRI, Inc.
    Inventor: John D. Milligan
  • Patent number: 4375358
    Abstract: Stable, pumpable slurry compositions of finely divided solid carbonaceous material in water are described. The composition includes a gelling agent to provide a supporting gel having a yield stress and a viscosity builder to reduce the bleeding of the supporting gel.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: March 1, 1983
    Assignee: Conoco Inc.
    Inventors: Charles J. Swartz, William P. Scott
  • Patent number: 4357257
    Abstract: A low viscosity slurry is prepared by first making a powder such that the shape of the particles of the powder is granular and then mixing the powder and a suitable dispersant.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: November 2, 1982
    Assignee: Phillips Petroleum Company
    Inventors: Yulin Wu, Ernest A. Zuech