Patents Assigned to Shell Internationale Research Maatschappij B.V.
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Publication number: 20100162703Abstract: A process for reducing CO2 emission in a power plant, wherein the power plant comprises at least one gas turbine coupled to a heat recovery steam generator unit and the CO2 capture unit comprises an absorber and a regenerator, the process comprising the steps of: (a) introducing hot exhaust gas exiting a gas turbine having a certain elevated pressure into a heat recovery steam generator unit to produce steam and a flue gas stream comprising carbon dioxide; (b) removing carbon dioxide from the flue gas stream comprising carbon dioxide by contacting the flue gas stream with absorbing liquid in an absorber having an elevated operating pressure to obtain absorbing liquid enriched in carbon dioxide and a purified flue gas stream, wherein the settings and/or construction of the gas turbine are adjusted such that the hot exhaust gas exiting the gas turbine has a pressure of at least 40% of the elevated operating pressure of the absorber.Type: ApplicationFiled: January 23, 2008Publication date: July 1, 2010Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Kuei-Jung Li, Georgios Protopapas
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METHOD AND APPARATUS FOR GENERATING A GASEOUS HYDROCARBON STREAM FROM A LIQUEFIED HYDROCARBON STREAM
Publication number: 20100126186Abstract: The present invention relates to a method for generating gaseous hydrocarbon stream from a liquefied hydrocarbon stream (10) such as liquefied natural gas, the method at least comprising the steps of: a) feeding a liquefied hydrocarbon stream (10) at an inlet (21) of a storage tank (2) to provide a liquefied hydrocarbon in the storage tank (2); b) removing at least a part (40) from the liquefied hydrocarbon from the storage tank (2) to provide a removed liquefied hydrocarbon stream (40); c) passing at least a part of the removed liquefied hydrocarbon stream (40) to a line (10, 20) downstream of an expander (4) and upstream of the inlet (21) of the storage tank (2); d) generating and removing a gaseous hydrocarbon stream (50, 60) as fuel gas. The method according to the present invention is particularly suitable for starting up a liquefaction plant.Type: ApplicationFiled: August 27, 2007Publication date: May 27, 2010Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Bruce Michael Marriott, Chun Kit Poh -
Publication number: 20090314030Abstract: Method of liquefying a hydrocarbon stream such as natural gas from a feed stream (10), the method at least comprising the steps of: (a) passing the feed stream (10) through a first cooling stage (100a, 100b) having at least two heat exchangers (112) and against a first single component refrigerant in a first refrigerant circuit (110a, 110b), to provide a cooled hydrocarbon stream (30); (b) passing the cooled hydrocarbon stream (30) through a second cooling stage (200) against a second refrigerant in a second refrigerant circuit (210a, 210b), to provide a liquefied hydrocarbon stream (40); (c) passing the second refrigerant through one or more of the heat exchangers (112) of the first cooling stage (100a, 110b); wherein the heat exchangers of the first cooling stage (100a, 100b) are shell and tube heat exchangers (112) having two or more tube circuits, the feed stream (10) passing through the tube circuit in each shell and tube heat exchanger (112) and the second refrigerant passing through another tube circuiType: ApplicationFiled: July 31, 2007Publication date: December 24, 2009Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventor: Marco Dick Jager
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Publication number: 20090312205Abstract: The present invention relates to a lubricant composition comprising a base oil or base oil blend and one or more additives, wherein the lubricant composition has a kinematic viscosity at 100° C. of more than 5.0 mm2/s (cSt), a cold cranking simulated dynamic viscosity at ?15° C. according to ASTM D 5293 of less than 9500 mPas (cP) and a mini rotary viscosity test value of less than 60000 mPas at ?20° C. according to ASTM D 4684, and wherein the base oil or base oil blend has been obtained from a waxy paraffinic Fischer-Tropsch synthesized hydrocarbon fraction and comprises a continuous series of isoparaffins having n, n+1, n+2, n+3 and n+4 carbon atoms, wherein n is between 15 and 35, suitable for the reduction of piston ring fouling in an internal combustion engine.Type: ApplicationFiled: November 9, 2007Publication date: December 17, 2009Applicant: Shell Internationale Research Maatschappij B.V.Inventors: David Colbourne, David John Wedlock
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Publication number: 20090242207Abstract: There is disclosed a system comprising a structural element; at least one strake holder connected to the structural element; and at least one flexible helical strake connected to the at least one strake holder.Type: ApplicationFiled: March 9, 2007Publication date: October 1, 2009Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Donald Wayne Allen, Stephen Paul Armstrong, Dean Leroy Henning, Damon Michael McMillan, David Wayne, Janet K. McMillan, Christopher Steven West
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Patent number: 7518023Abstract: The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides and at least one metal compound which is dropped into a metal salt solution.Type: GrantFiled: December 14, 2006Date of Patent: April 14, 2009Assignee: Shell Internationale Research Maatschappij, B.V.Inventors: Reinhard Geyer, Rainer Schödel, Peter Birke, Jürgen Hunold
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Publication number: 20080289502Abstract: A method and cyclonic separator are disclosed for degassing a fluid mixture comprising a carrier liquid and one or more gaseous and/or vaporizable components, wherein: —the fluid mixture is accelerated in a throat section (6) of a vortex tube (1) such that the static pressure of the fluid mixture is decreased and vaporizable components evaporate into a gaseous phase; —the accelerated fluid mixture is induced to swirl within the vortex tube such that the fluid mixture is separated by centrifugal forces into a degassed liquid fraction and a gas enriched fraction; —the degassed liquid fraction is induced to flow into a liquid outlet conduit (4) which is located at or near the outer circumference of the vortex tube (1); and—the gas enriched fraction is induced to flow into a gas outlet conduit (3) which is located at or near a central axis of the vortex tube (1).Type: ApplicationFiled: December 29, 2005Publication date: November 27, 2008Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Marco Betting, Gerhardus Willem Colenbrander, Michael Alvin Curole, Theodorus Cornelis Klaver, Eric Johannes Puik
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Publication number: 20080242749Abstract: The invention provides a process for the removal of COS from a first synthesis gas stream comprising COS and H2S, the process having the steps of: (a) converting COS in the first synthesis gas stream to H2S by contacting the first synthesis gas stream with a COS-hydrolysing catalyst in the presence of water in a hydrolysis zone to obtain a second synthesis gas stream depleted of COS and enriched in H2S; (b) removing H2S from the second synthesis gas stream by contacting the second synthesis gas stream with a solid adsorbent in a H2S removal zone to obtain a third synthesis gas stream depleted of H2S and depleted of COSType: ApplicationFiled: July 22, 2005Publication date: October 2, 2008Applicants: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Robert Martijn Van Hardeveld, Rudolf Henri Max Herold, Adriaan Johannes Kodde, Thijme Last, Cornelis Jacobus Smit
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Publication number: 20080234397Abstract: A method of treating off-gas from a Fischer-Tropsch reaction is disclosed, the method comprising the steps of: (i) recovering the off-gas from a Fischer-Tropsch reaction, and (ii) hydrogenating a portion of the olefins present in said off-gas. In preferred embodiments the hydrogenated off-gas is used as a feed for a hydrogen manufacturing unit based on steam reforming. Carbon monoxide can be oxidised or methanated. A CuO/ZnO based catalyst can be used to hydrogenate the olefins. The present invention allows Fischer-Tropsch off-gas (containing unconverted syngas, olefins, C1-C4 hydrocarbons and inerts) to be recycled which is more efficient than using it as fuel.Type: ApplicationFiled: November 24, 2005Publication date: September 25, 2008Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Frederik Willem Hendrik Gimpel, Gerard Grootveld
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Publication number: 20070170092Abstract: Process to prepare a haze free base oil having a kinematic viscosity at 100° C. of greater than 10 cSt from a Fischer-Tropsch wax feed by performing the following steps, (a) reducing the wax content of the feed by contacting the feed with a hydroisomerisation catalyst under hydroisomerisation conditions at a remote location, (b) transporting an intermediate product having a reduced wax content as obtained in step (a) from one location to another location, and (c) solvent dewaxing the transported intermediate product to obtain the haze free base oil at the location closer to the end-user.Type: ApplicationFiled: December 21, 2004Publication date: July 26, 2007Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Nicholas Adams, Gilbert Germaine
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Publication number: 20060272502Abstract: The invention relates to a process for the removal of SO2, HCN and H2S and optionally one or more compounds from the group of COS, CS2 and NH3 from a first gas stream, which process comprises the steps of: (a) removing SO2 from the first gas stream by contacting the first gas stream in a hydrogenation zone with a hydrogenation catalyst in the presence of hydrogen to obtain a second gas stream; (b) removing HCN and optionally COS and/or CS2 from the second gas stream obtained in step (a) by contacting the second gas stream in a hydrolysis zone with a hydrolysis catalyst in the presence of water to obtain a third gas stream; (c) removing NH3 from the third gas stream by contacting the third gas stream in a NH3-removal zone with an aqueous acidic washing liquid to obtain an ammonium-comprising aqueous stream and a fourth gas stream; (d) removing H2S from the fourth gas stream by contacting the fourth gas stream in a H2S-removal zone with an aqueous alkaline washing liquid to obtain a H2S-depleted gas stream andType: ApplicationFiled: May 28, 2004Publication date: December 7, 2006Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventors: Petru, Van Grinsven, Wiebe Kijlstra, Inge Roos, Cornelis Smit
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Publication number: 20060052488Abstract: The present invention provides a bitumen composition including:—(i) from 0.1 to 25% wt of an elastomer, (ii) from 0.1 to 40% wt of a solvent, (iii) from 30 to 99% wt of a bitumen, (iv) from 0.1 to 30% wt of a lithium salt of a C10-C40 fatty acid or hydroxy fatty acid, and optionally (v) from 0 to 70% wt of a filler, all weights based on total bitumen composition, wherein the solvent is of general formula (I), wherein R1 represents a hydrogen atom or a hydrocarbyl group having from 1 to 6 carbon atoms, R2 represents a hydrocarbyl group having from 1 to 6 carbon atoms, and the sum of the carbon atoms in R1 and R2 is from 5 to 7; a process of preparing said bitumen composition and the use of the composition as a cold-applicable adhesive.Type: ApplicationFiled: October 10, 2003Publication date: March 9, 2006Applicant: Shell Internationale Research Maatschappij B.V.Inventors: Francois Julien Deygout, Alain Seive
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Patent number: 5869020Abstract: Process for the production of aluminium hydroxide by digesting bauxite with alkali solution and precipitating aluminium hydroxide from the digestion solution, comprising:a combining bauxite and alkali solution having a caustic concentration of at least 180 grams per liter expressed as sodium carbonate and digesting partly the bauxite in the combined product in a first digestion step at relatively low temperature,b separating reaction product obtained in step a into a liquid phase and a solids/liquid slurry,c combining liquid phase and solids/liquid slurry obtained in step b and digesting the combined product in a second digestion step at relatively high temperature,d releasing heat from the reaction product obtained in step c to preheat liquid phase obtained in step b,e separating the reaction product obtained in step d into a supersaturated sodium aluminate solution and undissolved material,f precipitating aluminium hydroxide from the supersaturated sodium aluminate solution obtained in step e and separatingType: GrantFiled: April 22, 1992Date of Patent: February 9, 1999Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Albert Rijkeboer, Roelof Den Hond
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Patent number: 5854252Abstract: The invention relates to fungicidal compositions which comprise a carrier and, as active ingredient, a dihalotriazolopyrimidine derivative of general formula (I) in which R represents an optionally substituted branched or straight-chain alkyl or alkoxy group or an optionally substituted cycloalkyl, aryl, aryloxy, or heterocyclyl group, and Hal represents a fluroine, chlorine, bromine or iodine atom; and their use as fungicides. Certain of these dihalotriazolopyrimidine derivatives are novel and a process for the preparation of these compounds is also provided.Type: GrantFiled: August 28, 1995Date of Patent: December 29, 1998Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Klaus-Jurgen Pees, Heinz-Manfred Becher
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Patent number: 5612345Abstract: The invention relates to fungicidal compositions which comprise a carrier and, as active ingredient, a dihalotriazolopyrimidine derivative of general formula (I) in which R represents an optionally substituted branched or straight-chain alkyl or alkoxy group or an optionally substituted cycloalkyl, aryl, aryloxy, or heterocyclyl group, and Hal represents a fluorine, chlorine, bromine or iodine atom; and their use as fungicides. Certain of these dihalotriazolopyrimidine derivatives are novel and a process for the preparation of these compounds is also provided.Type: GrantFiled: June 5, 1995Date of Patent: March 18, 1997Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Heinz-Manfred Becher, Klaus-Jurgen Pees
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Patent number: 5376679Abstract: Compounds of the general formula ##STR1## where R.sup.2 and R.sup.3 together, or R.sup.3 and R.sup.4 together, represent an optionally substituted hydrocarbyloxy chain; the ring is optionally substituted at any or each of the remaining sites R.sup.5, R.sup.6 and R.sup.2 or R.sup.4 : n represents 0 or 1; and X represents a cyano group, a group --COOH or a salt, ester or amido derivative thereof; are biocidal, showing activity against fungi, yeast, bacteria and nematodes. Some such compounds, and intermediates therefore, are novel.Type: GrantFiled: January 12, 1994Date of Patent: December 27, 1994Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Michael Pearson, Andrew C. G. Gray, Thomas W. Naisby, William W. Wood, Susan J. Turner, Tarnia M. Machin
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Patent number: 5329972Abstract: A fire resistant plastic structure comprises a pair of parallel walls, wherein the spacing between the walls is filled with an array of mutually spaced strut elements, thereby providing a flow path for a cooling fluid throughout the spacing.Type: GrantFiled: November 21, 1990Date of Patent: July 19, 1994Assignee: Shell Internationale Research Maatschappij B.V.Inventor: Jeremy D. L. Guiton
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Patent number: 5304376Abstract: A fungicidal composition in particulate or powder form wherein each active particle thereof comprises a fungicidally active compound, especially an acrylamide such as dimethomorph, dispersed in a polymer material having a melting point below the degradation temperature of the compound. The fungicidal composition is particularly useful in the form of a wettable powder or a suspension concentrate.Type: GrantFiled: January 23, 1990Date of Patent: April 19, 1994Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Edmund Friedrichs, Guido Albert
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Patent number: 5271910Abstract: A process of treating metal chloride wastes produced by chlorination of titanium ore comprises the steps of:(a) leaching said metal chloride wastes in a hydrochloric acid (HCl)-containing solution to obtain a solution containing solids and dissolved metals,(b) separating said dissolved metals from said solids present in the solution obtained in step (a) to obtain a liquid and a residue,(c) selectively precipitating the metals as their hydroxides by adding a neutralizing agent to the liquid obtained in step (b),(d) separating the precipitate of metal hydroxides obtained in step (c) from the liquid to obtain a residue, and(e) dewatering the residue obtained in step (d).Type: GrantFiled: March 13, 1990Date of Patent: December 21, 1993Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Andries P. van der Meer, Gerrit van der Lee
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Patent number: 5219951Abstract: Process for the manufacture of modified polyphenylene ether or structurally related polymers comprising:the reaction of polyphenylene ether or structurally related polymer with a non-cyclic acid anhydride, in the presence of a pyridine derivative substituted by an amine group as catalyst, and in a vinyl substituted aromatic monomer as solvent;modified polyphenylene ethers so obtained and use of them for the manufacture of modified high temperature rigid poly(vinyl substituted aromatic) polymer compositions.Type: GrantFiled: September 12, 1991Date of Patent: June 15, 1993Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Laurentius N. I. H. Nelissen, Johannes M. Zijderveld