Patents Assigned to British Petroleum Company Limited
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Patent number: 5342596Abstract: Novel crystalline alumino silicates having the following composition in terms of the mole ratio of the oxides:0.9.+-.0.2 M.sub.2 n :Al.sub.2 O.sub.3 :x SiO.sub.2 :yH.sub.2 Owherein M is at least one cation having a valence n, x is at least 10 and y/x is between 0 and 25, said aluminosilicates having a characteristic X-ray diffraction pattern. The cation M in the aluminosilicates is preferably selected from H.sup.+, ammonium, alkali metal cations, alkaline earth metal cations, organic nitrogencontaining cations, aluminum cations, gallium cations and mixtures thereof. The invention also comprises a process for producing the aluminosilicate by mixing together a source of silica, a source of alumina, a source of alkali metal(s), water and diethanolamine until a homogeneous gel is formed and crystallizing the mixture at a temperature above 70.degree. C. for a period of at least 2 hours.Type: GrantFiled: December 29, 1981Date of Patent: August 30, 1994Assignee: The British Petroleum Company LimitedInventors: Sami A. I. Barri, Philip Howard, Clive D. Telford
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Patent number: 4590294Abstract: The invention relates to the use of hydrogen ion-exchanged layered clays in organic reactions which are catalyzed by protons. Such organic reactions include the production of ethers by the reaction of an alcohol with an olefin or an olefin oxide, the production of an ether by the reaction of a primary or secondary aliphatic alcohol or an olefin oxide, the production of an alkyl aromatic compound by the reaction of an aromatic hydrocarbon with an olefin or a C.sub.2 or higher alcohol and the production of an alcohol by the hydration of an olefin.Type: GrantFiled: August 12, 1985Date of Patent: May 20, 1986Assignee: The British Petroleum Company LimitedInventors: James A. Ballantine, Reginald Gregory, John H. Purnell, John M. Thomas, David J. Westlake
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Patent number: 4557637Abstract: Apparatus for transferring solid particles to a receptacle comprises a loading tube (2) surrounded at or near its base by a gas supply chamber (7) terminating in a Coanda surface (9). A slot (10) between the outlet from the loading tube (2) and the beginning of the Coanda surface (9) forms a Coanda nozzle. A throttle (3) is preferably fitted in the loading tube (2) to form an annulus (4) down which the particles flow to the slot (10). A gas supply line (8) preferably enters a gas supply (7) tangentially to supply gas to the Coanda nozzle. The apparatus is particularly suitable for loading catalyst into a reactor.Type: GrantFiled: November 16, 1983Date of Patent: December 10, 1985Assignee: The British Petroleum Company LimitedInventors: John L. Barclay, Geoffrey C. Stevens, Brian Stokes, Denis S. Ward
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Patent number: 4507411Abstract: A composition suitable for forming surface coatings, laminates or composite materials formed by bringing together:(a) a first polymer containing carboxylic acid, anhydride or acid chloride groups,(b) an amine or alcohol or a derivative thereof which is a tertiary amine, a ketimine, an acetal or an oxazolidine and(c) a second polymer capable of cross-linking with the first polymer in the presence of the amine or alcohol.The components may be initially in two packs and either mixed prior to application or sprayed onto the surface simultaneously from separate nozzles.The surface coatings are particularly suitable for coating surfaces which are otherwise difficult to coat and protect and may be applied to wet or rusted surfaces without surface preparation.Type: GrantFiled: September 24, 1981Date of Patent: March 26, 1985Assignee: The British Petroleum Company LimitedInventors: Kevin R. Gordon, Jeffrey R. Kelsey, Ivan C. Stannard
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Patent number: 4497663Abstract: A method for forming a three-dimensional network containing encapsulated organic material comprises reacting a functionalized polymer and a complementary functional cross-linking agent in the presence of the organic material. The method may be used for recovering oil spilled on sea or land, for treating organic wastes or preventing leakage of oil from tanks or pipelines.Type: GrantFiled: May 30, 1984Date of Patent: February 5, 1985Assignee: The British Petroleum Company LimitedInventors: Robert G. Fisher, Ian G. Meldrum, Alan J. Plomer, Richard A. Robinson
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Patent number: 4495306Abstract: A process for the preparation of hydrogenation catalysts by contacting a carbonaceous material with a water in oil emulsion containing a salt of a hydrogenating metal, converting said salt to a hydroxide or sulfide and subsequently removing the water.Type: GrantFiled: February 23, 1984Date of Patent: January 22, 1985Assignee: The British Petroleum Company LimitedInventors: Peter Budahn, Jorn Ehlers
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Patent number: 4492773Abstract: C.sub.1 to C.sub.4 oxygenated hydrocarbons are produced by contacting synthesis gas at a temperature in the range 150.degree. C. to 450.degree. C. and a pressure in the range of 1 to 700 bars with a catalyst comprising a supported mixture of a rhodium component and a silver component. The preferred support is silica. Other metal components which may be incorporated on the support are iron, manganese, molybdenum, tungsten, ruthenium, chromium, thorium and zirconium. Furthermore the support can be activated prior to incorporation of the metal components.Type: GrantFiled: December 8, 1982Date of Patent: January 8, 1985Assignee: The British Petroleum Company LimitedInventors: William J. Ball, Leonard Cotton, David G. Stewart
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Patent number: 4492772Abstract: An oxygenated hydrocarbon product comprising methanol and ethanol is produced by hydrogenating carbon monoxide at a temperature in the range 150.degree. to 450.degree. C. and a pressure in the range 1 to 700 bars in the presence as catalyst of a supported mixture of the metals rhodium, silver, zirconium and molybdenum and optionally also one or more of the metals iron, manganese, rhenium, tungsten, ruthenium, chromium, thorium and potassium. The preferred support is silica.Type: GrantFiled: October 13, 1982Date of Patent: January 8, 1985Assignee: The British Petroleum Company LimitedInventors: William J. Ball, Leonard Cotton, David G. Stewart
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Patent number: 4486167Abstract: A high pressure gas flare using the Coanda effect has a noise attenuator surrounding the high pressure gas outlet slot. The noise attenuator is in the form of one or more upwardly diverging frusto-conical shields which may be spaced apart or closed with the body of the flare. The attenuator is particularly useful for steam driven flares.Type: GrantFiled: December 1, 1981Date of Patent: December 4, 1984Assignee: The British Petroleum Company LimitedInventors: Robert McMurray, Gerald Pratley
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Patent number: 4481130Abstract: A method for continuously demulsifying a viscous, stable water-in-oil emulsion, which emulsion comprises from 50 to 80% water as the dispersed phase, comprises passing the emulsion and a chemical demulsifier through a mixing device having at least one flow restriction and recycling part of the mixture leaving the mixing device back to the device at or upstream of the restriction.Type: GrantFiled: June 7, 1982Date of Patent: November 6, 1984Assignee: The British Petroleum Company LimitedInventor: David S. Robertson
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Patent number: 4478806Abstract: The invention relates to a method for preparing a crystalline aluminosilicate having a high silica to alumina molar ratio and an X-ray diffraction pattern substantially the same as that of ZSM-5 zeolite which method comprises mixing a source of silica, a source of alumina, a source of alkali metal, water and at least one alkanolamine according to Formula (I): ##STR1## wherein any two of R.sup.1, R.sup.2 and R.sup.3 are independently alkylol groups and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is a hydrogen atom or all of R.sup.1, R.sup.2 and R.sup.3 are independently alkylol group, the alkylol groups being --CH.sub.2 --R--OH, wherein R is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, or --CH(CH.sub.3)--, the ratio of said source of silica to said source of alumina being at least 20:1 based on the equivalent moles of silica and alumina in said respective sources, maintaining said mixture at a temperature above about 120.degree. C. and recovering the crystalline aluminosilicate formed.Type: GrantFiled: November 22, 1982Date of Patent: October 23, 1984Assignee: The British Petroleum Company LimitedInventors: William J. Ball, Keith W. Palmer, David G. Stewart
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Patent number: 4464110Abstract: A high pressure gas flare using the Coanda effect and having an internal passageway for low pressure fuel gas has a high pressure gas flow modifier on the outer surface of the Coanda body. The flow modifier may be in the form of one or more projections downstream from the high pressure gas outlet, the projections tending to stabilize the flame.Type: GrantFiled: December 1, 1981Date of Patent: August 7, 1984Assignee: The British Petroleum Company LimitedInventors: John C. Boden, Gerald Pratley
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Patent number: 4459155Abstract: A method of producing a corrosion inhibitor formed of particles of an inorganic oxide having corrosion inhibiting anions chemically bound to the particles comprising contacting the inorganic oxide with an aqueous solution containing corrosion inhibiting anions at a temperature of from 50.degree. to 95.degree. C. and at a pH sufficiently low to initiate ion-exchange and maintaining the pH at this low level by the addition to the solution of further anions or a compound forming such anions in solution. Preferably the corrosion inhibiting anions are molybdate anions.The particles may be incorporated into protective coatings in amounts up to 80% wt based on dry film weight giving coatings with up to 12% wt of anions.Type: GrantFiled: December 11, 1981Date of Patent: July 10, 1984Assignee: The British Petroleum Company LimitedInventor: Richard A. Cayless
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Patent number: 4455969Abstract: A fluidized bed combustor has its fluidizing chamber in thermal contact with a surrounding heat exchanger. A lined base portion of the chamber capable of containing the bulk of bed material while the bed is slumped is adapted to retard heat transfer from the bed. Thermostat linked devices in the bed and external load are arranged to switch the fuel and gas supplies to the bed so as to enable normal bed temperature to be attained without excessive heat removal to the heat exchanger.Type: GrantFiled: June 27, 1983Date of Patent: June 26, 1984Assignee: The British Petroleum Company LimitedInventor: Derek Barker
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Patent number: 4452907Abstract: Crystalline aluminosilicates having a silica to alumina molar ratio greater than 12 are produced by mixing a source of silica, a source of alumina, a source of alkali metal, water and a source of ammonium ions, e.g. ammonia or an ammonium salt, in the absence of an alcohol or alkylene oxide, in the molar proportions (expressed in the case of the silica and alumina sources in terms of the equivalent moles of the oxide, in the case of the alkali metal source in terms of the equivalent moles of the hydroxide (MOH) and in the case of the source of ammonium ions in terms of free ammonia):SiO.sub.2 : Al.sub.2 O.sub.3 greater than 12:1MOH: Al.sub.2 O.sub.3 in the range from 1:1 to 20:1SiO.sub.2 : NH.sub.3 in the range from 1:1 to 200:1H.sub.2 O: MOH in the range from 30:1 to 300:1and maintaining the composition at elevated temperature, such as 120.degree. to 210.degree. C. for a period such that crystallization occurs, typically greater than 4 hours.Type: GrantFiled: December 28, 1982Date of Patent: June 5, 1984Assignee: The British Petroleum Company LimitedInventors: William J. Ball, David G. Stewart
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Patent number: 4448623Abstract: A dispenser of continuous resin wetted filaments has a container of a size suitable for hand holding, the container holding a supply of resin. A drum or reel of dry filament is positioned either inside or outside the container. The filament passes over filament guides in the container and through an outlet nozzle. The wetted filament is dispensed by attaching it to a former and then pulling the device away from the former. The device may include a filament tensioner so that the operator can vary the tension of the dispensed filament.Type: GrantFiled: April 30, 1980Date of Patent: May 15, 1984Assignee: The British Petroleum Company LimitedInventor: Keith B. Critchlow
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Patent number: 4444652Abstract: The present invention relates to a process for upgrading low grade gasoline made from synthesis gas, especially the gasoline made from coal-based processes. The process comprises contacting in the vapour phase the low-grade gasoline either alone or admixed with a C.sub.3 /C.sub.4 hydrocarbon feed with a gallium/aluminosilicate catalyst.The product gasoline so formed has an octane rating RON (clear) above 100 and a bromine number below 2. The process enables synthesis gas and coal to be used as a source of high grade gasoline.Type: GrantFiled: October 14, 1981Date of Patent: April 24, 1984Assignee: The British Petroleum Company LimitedInventors: Christopher J. Brown, Antony H. P. Hall
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Patent number: 4440958Abstract: The activity of cation-exchangeable layered clay or crystalline aluminosilicate catalyst in esterification, etherification, hydration, and cracking reactions is promoted by addition of a strong acid such as sulphuric acid, phosphoric acid, hydrochloric acid, hydrofluoric acid or para-toluene sulphonic acid. The further addition of water to the reaction can extend the life of the clay catalyst and in some cases its catalytic activity.Type: GrantFiled: July 29, 1981Date of Patent: April 3, 1984Assignee: The British Petroleum Company LimitedInventors: Reginald Gregory, David J. Westlake
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Patent number: 4437892Abstract: Compositions suitable for forming marine anti-fouling surface coatings comprise a polymer (e.g. maleinized polybutadiene) capable of cross-linking with amines, a hydrocarbyl polyisocyanate and a hydrocarbyl tin oxide or sulphide. The composition is preferably in two packs, which are combined on the surface to be coated, one pack containing the polymer and tin oxide or sulphide, and the other the polyisocyanate. A (thio) carbamate is formed as an intermediate which then hydrolyzes to an amine.A method of coating surfaces and surface coatings so produced are also claimed.Type: GrantFiled: March 23, 1981Date of Patent: March 20, 1984Assignee: The British Petroleum Company LimitedInventor: Jeffrey R. Kelsey
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Patent number: 4435296Abstract: A light colored, open gear lubricating grease is formed from:a lubricating base oila clay thickenera combination of a polymer, preferably atactic polypropylene, and a particulate mineral, preferably zinc oxide, as tactifier and filler, andand alkali metal borate as EP additive.The ratio of polymer to mineral, may be from 1.5:1 to 1:1.5. An aromatic disulphide, preferably dibenzyl disulphide, may also be present as an EP additive and, if so, the wt. ratio of borate to disulphide may be from 5:1 to 7:1.Type: GrantFiled: May 22, 1981Date of Patent: March 6, 1984Assignee: The British Petroleum Company LimitedInventors: Christopher P. Brooks, Stanley C. Dodson, Robert H. Newman