Having Specifically Intended Extraneously Added Iron Group (i.e., Fe, Co, Ni) Component Patents (Class 502/406)
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Publication number: 20100170394Abstract: A silicate-resistant sorbent composition, as well as a method of making and using the same, is provided. The sorbent composition generally comprises a support component comprising one or more silicate-resistant silica-containing components that have been treated one or more silicate-inhibiting metals. The inventors have discovered that sorbent compositions made and used according to embodiments the present invention exhibit a surprisingly low in situ silicate generation rate when exposed to oxidative regeneration conditions.Type: ApplicationFiled: January 8, 2009Publication date: July 8, 2010Applicant: CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Glenn W. Dodwell, Robert W. Morton, Roland Schmidt
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Patent number: 7744841Abstract: Finely divided ferrous carbonate absorbent, siderite granules or absorbent particles made by mixing, agglomerating and shaping finely powdered ferrous carbonate, preferably siderite, in combination with minor effective amounts of water or an optional binder, followed by drying, are used to treat and significantly reduce concentrations of hydrogen sulfide, carbonyl sulfide, organic disulfides, mercaptans and other sulfurous compounds and contaminants in gaseous and liquid fluid streams such as natural gas, light hydrocarbon streams, crude oil, acid gas mixtures, carbon dioxide gas and liquid streams, anaerobic gas, landfill gas, geothermal gases and liquids, and the like.Type: GrantFiled: September 15, 2005Date of Patent: June 29, 2010Assignee: New Technology Ventures, Inc.Inventor: Floyd E. Farha
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Publication number: 20100155335Abstract: The present invention provides magnetically responsive activated carbon, and a method of forming magnetically responsive activated carbon. The method of forming magnetically responsive activated carbon typically includes providing activated carbon in a solution containing ions of ferrite forming elements, wherein at least one of the ferrite forming elements has an oxidation state of +3 and at least a second of the ferrite forming elements has an oxidation state of +2, and increasing pH of the solution to precipitate particles of ferrite that bond to the activated carbon, wherein the activated carbon having the ferrite particles bonded thereto have a positive magnetic susceptibility. The present invention also provides a method of filtering waste water using magnetic activated carbon.Type: ApplicationFiled: December 18, 2008Publication date: June 24, 2010Applicant: UT-BATTELLE, LLCInventors: Patricia Taboada-Serrano, Constantino Tsouris, Cristian I. Contescu, Joanna McFarlane
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Publication number: 20100152041Abstract: There is provided a method of stably producing nanoparticles of a metal alone, in particular a transition metal alone, the method comprises heating a chelate complex (M-DMG) comprised of two dimethyl glyoxime (PM) molecules and one transition metal (M) ion at 300 to 400° C. so as to generate transition metal (M) nanonarticles carried on carbon particles. The method preferably comprises heating a mixture of said chelate complex (M-DMG) and alumina so as to generate transition metal (M) nanoparticles carried on alumina. Preferably, the transition metal (M) is one of Ni, Cu, Pd, and Pt. Typically, the generated transition metal (M) nanoparticles have a size of a diameter of 5 to 15 nm.Type: ApplicationFiled: February 28, 2008Publication date: June 17, 2010Inventors: Kyoichi Tange, Alexander Talyzin, Fanny Barde
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Publication number: 20100139486Abstract: A sorbent for the capture of carbon dioxide from a gas stream is provided, the sorbent containing calcium oxide (CaO) and at least one refractory dopant having a Tammann temperature greater than about 530° C., wherein the refractory dopant enhances resistance to sintering, thereby conserving performance of the sorbent at temperatures of at least about 530° C. Also provided are doped CaO sorbents for the capture of carbon dioxide in the presence of SO2.Type: ApplicationFiled: December 10, 2009Publication date: June 10, 2010Applicant: UNIVERSITY OF CINCINNATIInventors: Panagiotis G. Smirniotis, Hong Lu
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Publication number: 20100133161Abstract: Methods for the separation of biological materials from a sample mixture using a superficially porous particle coated (or clad) with a metal are provided herein. Methods using the support as a chromatographic column are also provided.Type: ApplicationFiled: February 2, 2010Publication date: June 3, 2010Inventors: Barry E. Boyes, James D. Martosella, Susanne C. Moyer
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Publication number: 20100125038Abstract: The present invention relates to carbon based materials that are employed for hydrogen storage applications. The material may be described as the pyrolysis product of a molecular precursor such as a cyclic quinone compound. The pyrolysis product may then be combined with selected transition metal atoms which may be in nanoparticulate form, where the metals may be dispersed on the material surface. Such product may then provide for the reversible storage of hydrogen. The metallic nanoparticles may also be combined with a second metal as an alloy to further improve hydrogen storage performance.Type: ApplicationFiled: November 17, 2008Publication date: May 20, 2010Applicant: SOUTHWEST RESEARCH INSTITUTEInventors: Athanasios BOURLINOS, Theodore STERIOTIS, Athanasios STUBOS, Michael A. MILLER
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Patent number: 7692051Abstract: A process and catalyst for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes, high alkyne conversion, and sustained catalytic activity comprising a reactant comprising an alkyne and a non-hydrocarbon solvent/absorbent, contacting the reactant stream with a hydrogen-containing stream in the presence of a supported, promoted, Group VIII catalyst, removing the solvent/absorbent, and recovering the alkene product.Type: GrantFiled: May 2, 2008Date of Patent: April 6, 2010Assignee: Synfuels International, Inc.Inventors: Marvin M. Johnson, Edward R. Peterson, Sean C. Gattis
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Publication number: 20100059447Abstract: The present invention relates to products and methods for removing or recovering substances from aqueous solution. Titanic acid product is used as adsorption material for several substances, for example impurities or contaminants, such as arsenic, lead, fluorine or phosphate. The present invention also relates to a granule for removing substances from aqueous solution and a filter assembly comprising titanic acid or said granule.Type: ApplicationFiled: February 17, 2006Publication date: March 11, 2010Inventor: Mika Martikainen
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Publication number: 20100056769Abstract: The present invention is related to a method for isolating a target nucleic acid from a sample comprising said target nucleic acid, comprising the steps of mixing a sample containing said target nucleic acid with a binding solution and a nucleic acid binding matrix, binding at least part of said target nucleic acid to said nucleic acid binding matrix, wherein said nucleic acid binding matrix is treated simultaneously or has been previously treated with at least one compound comprising a metal substance selected from the group consisting of metals of the main groups 13 to 16, semimetals and transition metals for reducing non-target nucleic acid contaminations or wherein said nucleic acid binding matrix is modified with hydrophobic groups. Furthermore, respective kits and reagents are provided with the teaching of the present invention.Type: ApplicationFiled: October 10, 2007Publication date: March 4, 2010Applicant: QIAGEN GMBHInventors: Christoph Ritt, Christoph Erbacher, Patrick Baumhof
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Publication number: 20100040553Abstract: A method for producing spherical ferrite nanoparticles includes the steps of: preparing a first aqueous solution containing a disaccharide, an alkaline, an oxidation agent, seed particles and divalent iron ions; and conducting particle growth in the first aqueous solution to produce the spherical ferrite nanoparticles.Type: ApplicationFiled: December 28, 2007Publication date: February 18, 2010Applicants: Tokyo Institute of Technology, TAMAGAWA SEIKI KABUSHIKI KAISHAInventors: Masanori Abe, Hiroshi Handa, Takashi Nakagawa, Masaru Tada, Ryuichi Shimazu, Toshiyuki Tanaka
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Patent number: 7662292Abstract: Media for selectively removing radium ions from water where manganese oxide (DMO) has been dispersed in a cation ion exchange resin (gel or macroporous) to adsorb radium ions. The media is manufactured by precipitating a soluble manganese (II) salt such as manganous sulfate with a permanganate salt such as sodium permanganate inside a strong acid cation (SAC) to form a resin containing highly dispersed manganese oxides. The resin is then post treated with a reducing agent such as sodium metabisulfite (Na2S2O2) to prevent the leaching of soluble manganese from the resin. The reducing treatment ensures that soluble manganese species will be converted into an insoluble oxide form.Type: GrantFiled: December 19, 2008Date of Patent: February 16, 2010Assignee: Envirogen Technologies, Inc.Inventors: Michael D. Kelly, Peter F. Doorley
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Publication number: 20090305868Abstract: An absorbent includes a ferromagnetic nucleus with a one-layer or two-layer shell or devoid thereof and the nucleus is embodied in the form of a plate with a planar size that ranges from 500-5000 ?m and the thickness is equal to 0.1-1000 ?m. The method for producing the inventive magnetically-operated absorbent includes evaporating and/or melting a magnetic material powder in a low-temperature plasma, quenching and condensing the thus obtained vaporized and/or melt-particle product in a gas flux, and transferring the product precipitated in the form of crystals or micro slugs of corresponding metals, correspondingly to a stabilizer-containing dispersion medium and holding in the medium until a gas release is over. Then the crystals or micro slugs are processed by flatting, for example pressing so that the plates of a specified thickness are obtained.Type: ApplicationFiled: July 1, 2009Publication date: December 10, 2009Inventor: Mikhail Vladimirovich Kutushov
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Publication number: 20090301971Abstract: A method for low-cost arsenic removal from drinking water using chemically prepared bottom ash pre-treated with ferrous sulfate and then sodium hydroxide. Deposits on the surface of particles of bottom ash form of activated iron adsorbent with a high affinity for arsenic. In laboratory tests, a miniscule 5 grams of pre-treated bottom ash was sufficient to remove the arsenic from 2 liters of 2400 ppb (parts per billion) arsenic-laden water to a level below 50 ppb (the present United States Environmental Protection Agency limit). By increasing the amount of pre-treated bottom ash, even lower levels of post-treatment arsenic are expected. It is further expected that this invention supplies a very low-cost solution to arsenic poisoning for large population segments.Type: ApplicationFiled: May 18, 2009Publication date: December 10, 2009Applicant: The Regents of the University of CaliforniaInventor: Ashok Gadgil
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Patent number: 7622423Abstract: The present invention provides a method for making modified jacobsite, Al-doped maghemite or modified maghemite nanoparticles that can be used to adsorb heavy metals, such as Cr(VI), found in wastewater. The magnetic nanoparticles can be separated using a magnetic field after adsorbing heavy metals from wastewater, and processed for reused.Type: GrantFiled: September 12, 2006Date of Patent: November 24, 2009Assignee: The Hong Kong University of Science & TechnologyInventors: Jing Hu, Man Chi Lo, Guohua Chen
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Patent number: 7578986Abstract: Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials such as Group 1 and Group 2 metal oxides that are adapted to absorb CO2 and catalyst materials such as reforming catalysts and water-gas shift catalysts, and methods for using the materials. The materials can be fabricated by spray processing. The use of the materials in AER can produce a H2 product gas having a high H2 content and a low level of carbon oxides.Type: GrantFiled: August 31, 2007Date of Patent: August 25, 2009Assignee: Cabot CorporationInventors: Mark J. Hampden-Smith, Paolina Atanassova, Jian-Ping Shen, Paul Napolitano, James Brewster
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Patent number: 7557064Abstract: Organic ligands that contain at least one aryl group are immobilized on a solid support. The organic ligands are of the type used to form a catalyst complex suitable for carrying out a catalytic reaction, preferably an asymmetric reaction. To immobilize the organic ligands, a tethering group is bonded to the ligand using, for example, a Friedel-Crafts acylation or alkylation reaction. The immobilization of the organic ligand can be carried out using a single reaction with the organic ligand.Type: GrantFiled: August 13, 2007Date of Patent: July 7, 2009Assignee: Headwaters Technology Innovation, LLCInventors: Bing Zhou, Changkun Liu
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Patent number: 7549427Abstract: A novel nanocatalyst is disclosed containing titanium oxide, iron oxide, and calcium oxide. The catalyst comprises a layer of iron oxide in the gamma form supported on a titanium oxide core. Addition of calcium cations helps to stabilize the iron oxide in the gamma form. The iron oxide layer is on the order of a few nanometers thick on the surface of the titanium oxide core, in an “egg-in-shell” structure. The nanocatalyst is highly active in promoting the oxidation of compounds such as hydroquinone, catechol, other hydrocarbons, chlorinated phenols, and carbon monoxide, even at moderately elevated temperatures. The catalyst remains active in a pyrolytic environment for extended periods of time, and possesses high redox cycling potential. The efficiency of the catalyst is not strongly affected by coking in a combustion environment.Type: GrantFiled: July 13, 2005Date of Patent: June 23, 2009Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Harold B. Dellinger, Slawomir M. Lomnicki
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Patent number: 7544636Abstract: A method for low-cost arsenic removal from drinking water using chemically prepared bottom ash pre-treated with ferrous sulfate and then sodium hydroxide. Deposits on the surface of particles of bottom ash form of activated iron adsorbent with a high affinity for arsenic. In laboratory tests, a miniscule 5 grams of pre-treated bottom ash was sufficient to remove the arsenic from 2 liters of 2400 ppb (parts per billion) arsenic-laden water to a level below 50 ppb (the present United States Environmental Protection Agency limit). By increasing the amount of pre-treated bottom ash, even lower levels of post-treatment arsenic are expected. It is further expected that this invention supplies a very low-cost solution to arsenic poisoning for large population segments.Type: GrantFiled: February 24, 2005Date of Patent: June 9, 2009Assignee: The Regents of the University of CaliforniaInventor: Ashok Gadgil
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Publication number: 20090143227Abstract: Porous and/or curved nanofiber bearing substrate materials are provided having enhanced surface area for a variety of applications including as electrical substrates, semipermeable membranes and barriers, structural lattices for tissue culturing and for composite materials, production of long unbranched nanofibers, and the like.Type: ApplicationFiled: January 11, 2006Publication date: June 4, 2009Applicant: NANOSYS, Inc.Inventors: Robert Dubrow, Carlos Guillermo Casillas, William P. Freeman, Jay L. Goldman, Veeral Dilip Hardev, Francisco Leon, Chunming Niu, Cheri X. Y. Pereira
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Publication number: 20090114093Abstract: A highly effective and regenerable method, system and device that enables the desulfurization of warm fuel gases by passing these warm gasses over metal-based sorbents arranged in a mesoporous substrate. This technology will protect Fischer-Tropsch synthesis catalysts and other sulfur sensitive catalysts, without drastic cooling of the fuel gases. This invention can be utilized in a process either alone or alongside other separation processes, and allows the total sulfur in such a gas to be reduced to less than 500 ppb and in some instances as low as 50 ppb.Type: ApplicationFiled: June 17, 2008Publication date: May 7, 2009Inventors: Liyu Li, David L. King, Jun Liu, Qisheng Huo
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Publication number: 20090118120Abstract: Solid materials have been developed to remove arsenic compounds from aqueous media. The arsenic is removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The solid materials adsorb the arsenic leaving a purified aqueous stream. The materials are aerogels or xerogels and aerogels or xerogels and solid support structure, e.g., granulated activated carbon (GAC), mixtures. The species-specific adsorption occurs through specific chemical modifications of the solids tailored towards arsenic.Type: ApplicationFiled: June 6, 2008Publication date: May 7, 2009Inventors: Paul R. Coronado, Sabre J. Coleman, Robert D. Sanner, Victoria L. Dias, John G. Reynolds
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Publication number: 20090071876Abstract: A desulfurizing agent is produced by mixing a copper compound, a zinc compound and an ammonium compound with an aqueous solution of an alkali substance to prepare or precipitate followed by calcitrating the resulting precipitate to form a calcined precipitate into a shape form of a copper oxide-zinc oxide-aluminum oxide mixture. The shaped form is impregnated with iron or nickel and calcined to produce a calcined oxide and reduced with hydrogen to form a sulfur-absorption desulfurizing agent.Type: ApplicationFiled: November 19, 2008Publication date: March 19, 2009Inventors: Masataka MASUDA, Shin-ichi NAGASE, Susumu TAKAMI, Osamu OKADA
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Publication number: 20090050135Abstract: The invention is directed to a process for obtaining white sugar from sugar cane by treating the crude sugar juice with acid activated bentonite selected from the group of smectites, whereby the acid activated bentonite mixture replaces the traditional environmental unfriendly sulfitation process, wherein the mineral bentonite together with aluminium and iron sulfates, phosphoric and sulfuric acid and acid salt solutions allows to obtain a high quality white sugar.Type: ApplicationFiled: July 25, 2006Publication date: February 26, 2009Applicant: SUD-CHEMIE AGInventors: Werner Zschau, Rosalina Condemarin, Jose Antonio Ortiz Niembro
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Publication number: 20090028770Abstract: The present invention provides a method for advantageously producing an iron oxyhydroxide exhibiting excellent capability of adsorbing harmful substances, such as a phosphrous components and endocrine disrupting chemicals, which are contained in industrial wastewater, exhaust gases, etc., and an adsorbent material comprising the iron oxyhydroxide produced by the method as a main component. Specifically, the present invention provides an adsorbent material produced by a method comprising the steps of: (a) adding a base to an aqueous iron ion-containing solution, adjusting the pH of the resultant mixture to 9 or less, to form a precipitate that contains an iron oxyhydroxide; (b) drying the precipitate at a temperature of 100° C. or lower to obtain an iron oxyhydroxide; (c) contacting the resultant iron oxyhydroxide with water; and (d) subjecting the resultant iron oxyhydroxide to a heat treatment under a gas atmosphere having an inert gas concentration of 80% or greater at a temperature of 100 to 280° C.Type: ApplicationFiled: February 16, 2006Publication date: January 29, 2009Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, SHIGA PREFECTURE INDUSTRIAL SUPPORT CENTER, KYOTO UNIVERSITYInventors: Kazuhiro Mae, Taisuke Maki, Atsushi Yamamoto
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Publication number: 20080311288Abstract: The present invention relates to methods and compositions for removal of arsenic and heavy metals from water.Type: ApplicationFiled: December 29, 2006Publication date: December 18, 2008Inventor: Liangjie Dong
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Publication number: 20080307960Abstract: Absorbent magnetic particles are used to remove air pollutants. The adsorbent magnetic particles can adsorb various air pollutants, including nitrogen oxides, sulfur oxides, and mercury, and may be regenerated for reuse.Type: ApplicationFiled: March 13, 2006Publication date: December 18, 2008Inventors: David W. Hendrickson, Iwao Iwasaki, David J. Englund, Thomas R. Larson, Blair R. Benner, Donald R. Fosnacht, John Engesser
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Publication number: 20080300133Abstract: The invention relates to an oxygen scavenger/indicator which contains at least one oxygen sorbent comprising a metal or a metal compound which can be transferred by oxygen into a higher oxidation level. Furthermore, a complexing agent or redox indicator for the sorbent and also an electrolyte are contained in addition. The indicator effect is effected by a change in the physical properties of the oxygen sorbent which is initiated by complex formation and/or interaction with the redox indicator.Type: ApplicationFiled: November 17, 2006Publication date: December 4, 2008Applicant: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.Inventors: Horst-Christian Langowski, Thomas Wanner
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Publication number: 20080283446Abstract: Disclosed are sorbent compositions that include a porous titanium dioxide support impregnated with a silver material. The sorbent compositions may be utilized in systems and methods for removing sulfur compounds from hydrocarbon streams such as jet fuel.Type: ApplicationFiled: April 30, 2008Publication date: November 20, 2008Applicant: Auburn UniversityInventors: Bruce Tatarchuk, Hongyun Yang, Sachin Nair
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Publication number: 20080271601Abstract: The present invention relates to a unit suitable for the through-flow of a fluid medium at least partially filled with an adsorbent/catalyst in pellet form consisting essentially of iron oxide and/or iron oxyhydroxides, solidified with oxides and/or (oxy)hydroxides of the elements Al, Mg and Ti, the pellets or granules based on iron oxides and/or iron oxyhydroxides and iron(III) hydroxide for the absorbent/catalyst, and processes for their production and their use.Type: ApplicationFiled: July 10, 2008Publication date: November 6, 2008Inventors: Andreas Schlegel, Jurgen Kischkewitz
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Publication number: 20080272054Abstract: The present invention relates to a filtration unit containing pellets or granules of fine-particle iron oxides and/or iron oxyhydroxides with a large specific surface area, processes for their production and processes for their use in the filtration units.Type: ApplicationFiled: July 10, 2008Publication date: November 6, 2008Inventors: Andreas Schlegel, Peter Bailly, Jurgen Kischkewitz, Klaus Rohbock
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Patent number: 7438875Abstract: A method for reducing odor is provided. In one embodiment, the method comprises modifying the surface of silica particles with a transition metal so that the silica particles are bonded to the transition metal through a covalent or coordinate bond. The method further comprises contacting the modified silica particles with an odorous compound, the transition metal facilitating the capture of the odorous compound.Type: GrantFiled: October 16, 2003Date of Patent: October 21, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Bao Trong Do, John Gavin MacDonald, Jaeho Kim
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Publication number: 20080251423Abstract: A sorbent for use in removing sulfur contaminants from hydrocarbon feedstocks is provided, wherein the sorbent contains zinc aluminate in an amount of at least 40 wt % (calculated as ZnAl2O4); free alumina in an amount of from about 5 wt % to about 25 wt % (calculated as Al2O3); and iron oxide in an amount of from about 10 wt % to about 30 wt % (calculated as Fe2O3); wherein each of the free alumina and iron oxide are present in non-crystalline form as determined by X-ray diffraction analysis, and a method for producing the sorbent and method for using the sorbent to reduce sulfur contaminants in hydrocarbon feedstocks.Type: ApplicationFiled: September 27, 2006Publication date: October 16, 2008Applicant: Research Triangle InstituteInventors: Brian S. Turk, Santosh K. Gangwal, Raghubir Gupta
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Patent number: 7435704Abstract: An oxygen absorber includes an iron powder, and a first layer coated on a surface of the iron powder and formed of iron chloride through a chemical reaction. Further, the oxygen absorber includes a matrix material filled with the iron powder covered with the first layer of iron chloride. It is possible to coat the first layer on the surface of the iron powder with a second layer to obtain more uniform coating.Type: GrantFiled: March 10, 2004Date of Patent: October 14, 2008Inventor: Ihab M. Hekal
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Patent number: 7429551Abstract: Adsorbents for removing anions of a heavy metals and methods for using same are provided. Metal removing adsorbents comprise a porous material in which at least one oxygen-containing compound of iron, copper, aluminum, titanium, and/or zirconium is incorporated. The oxygen-containing compound may be incorporated into the porous media by impregnation or dispersion of a suitable precursor of such a compound. The precursor may be further treated to yield the oxygen-containing compound. Such adsorbents are particularly useful for removing arsenic and/or selenium from the environment and may be used in treating drinking water sources.Type: GrantFiled: December 7, 2004Date of Patent: September 30, 2008Assignee: Calgon Carbon CorporationInventor: Toan Phan Vo
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Patent number: 7427581Abstract: Novel sorbent systems for the desulfurization of cracked-gasoline and diesel fuels are provided which are comprised of a bimetallic promotor on a particulate support such as that formed of zinc oxide and an inorganic or organic carrier. Such bimetallic promotors are formed of at least two metals of the group consisting of nickel, cobalt, iron, manganese, copper, zinc, molybdenum, tungsten, silver, tin, antimony and vanadium with the valence of same being reduced, preferably to zero. Processes for the production of such sorbents are provided wherein the sorbent is prepared from impregnated particulate supports or admixed to the support composite prior to particulation, drying, and calcination. Further disclosed is the use of such novel sorbents in the desulfurization of cracked-gasoline and diesel fuels whereby there is achieved not only removal of sulfur but also an increase in the olefin retention in the desulfurized product.Type: GrantFiled: January 21, 2003Date of Patent: September 23, 2008Assignee: China Petroleum & Chemical CorporationInventor: Gyanesh P. Khare
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Patent number: 7425520Abstract: A supported catalyst for hydrogenating nitro groups of halonitro compounds manufactured from a support, a solvent, and one or more types of organometallic complexes. The organometallic complexes have the formula: wherein, R1-R6 are independently an R, OR, OC(?O)R, halogen, or combination thereof, where R stands for an alkyl or aryl group; Y1-Y4 are independently an O, S, N, or P atom; and M is a metal atom. The supported catalysts show much higher selectivity and activity when used to hydrogenate nitro groups on halonitro aromatic compounds than catalyst currently being used for such hydrogenation.Type: GrantFiled: June 18, 2007Date of Patent: September 16, 2008Assignee: Headwaters Technology Innovation, LLCInventors: Changkun Liu, Bing Zhou
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Publication number: 20080194902Abstract: It is now possible to purify diene-contaminated liquid and gas streams by treating these streams with adsorbents comprising single or multiple transition metal polycation-exchanged faujasites having silicon to aluminum ratio from 0.9 to about 9.0, wherein said transition metal (Tr) polycations have the general formula [Tr?O?]n+, wherein a varies from 2 to 8, ?—from 0 to 4, and n—from 1 to 3 and wherein said transition metals include IB. IIB, VIIB and VIII Group metals preferably selected from the group consisting of copper, cadmium, zinc, manganese, nickel and iron.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: Albert Michael Tsybulevski, Alexander A. Greish, Leonid M. Kustov
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Publication number: 20080190852Abstract: Finely divided ferrous carbonate absorbent, siderite granules or absorbent particles made by mixing, agglomerating and shaping finely powdered ferrous carbonate, preferably siderite, in combination with minor effective amounts of water or an optional binder, followed by drying, are used to treat and significantly reduce concentrations of hydrogen sulfide, carbonyl sulfide, organic disulfides, mercaptans and other sulfurous compounds and contaminants in gaseous and liquid fluid streams such as natural gas, light hydrocarbon streams, crude oil, acid gas mixtures, carbon dioxide gas and liquid streams, anaerobic gas, landfill gas, geothermal gases and liquids, and the like. Methods for absorbing sulfur compounds in a moist atmospheric environment and for regenerating the absorbent by contacting it with air and steam or, continuously, by mixing the feed stream with moist air are also disclosed.Type: ApplicationFiled: September 15, 2006Publication date: August 14, 2008Inventor: Floyd Farha
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Patent number: 7410931Abstract: A composition is provided that can be used, for example, in a fuel processor for a fuel cell system. The composition includes a first material such as a catalyst, and a second material such as a desiccant. The second material is capable of sorbing and desorbing a heat transfer material such as water, and is present in an amount sufficient to sorb an amount of the heat transfer material sufficient to remove a portion of the heat generated when the first material undergoes an exothermic reaction.Type: GrantFiled: August 26, 2004Date of Patent: August 12, 2008Assignee: Plug Power Inc.Inventors: Anton Scholten, Peter F. M. T. Van Nisselrooy, Walter R. De Jongh, Jan Stokman
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Patent number: 7368412Abstract: A method of producing an adsorption medium to remove at least one constituent from a feed stream. The method comprises dissolving at least one metal compound in a solvent to form a metal solution, dissolving polyacrylonitrile into the metal solution to form a PAN-metal solution, and depositing the PAN-metal solution into a quenching bath to produce the adsorption medium. The at least one constituent, such as arsenic, selenium, or antimony, is removed from the feed stream by passing the feed stream through the adsorption medium. An adsorption medium having an increased metal loading and increased capacity for arresting the at least one constituent to be removed is also disclosed. The adsorption medium includes a polyacrylonitrile matrix and at least one metal hydroxide incorporated into the polyacrylonitrile matrix.Type: GrantFiled: September 4, 2003Date of Patent: May 6, 2008Assignee: Battelle Energy Alliance, LLCInventors: Troy J. Tranter, R. Scott Herbst, Nicholas R. Mann, Terry A. Todd
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Patent number: 7332108Abstract: There is disclosed a method for preparing a thin ceramic and/or metallic solid-state composition consisting of three phases: a material (A), a material (B) and pores. The concentration of each phase varies continuously from one face of the article to the other in a continuous and controlled gradient. The porous matrix of material (A) has a porosity gradient of 0% to about 80%, the pores being completely or partly filled with material (B). The concentration of material (B) in the article therefore varies from 80% to 0% of small thicknesses.Type: GrantFiled: May 16, 2002Date of Patent: February 19, 2008Assignee: L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Thierry Chartier, François Guillotin
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Patent number: 7329624Abstract: An adsorbent for removal of impurities from silicone based solvents is presented. The adsorbent is regenerable for repeated use in cleaning silicone based solvents.Type: GrantFiled: May 17, 2005Date of Patent: February 12, 2008Assignee: UOP LLCInventors: Laszlo T. Nemeth, Anil R. Oroskar, Santi Kulprathipanja, Rusty M. Pittman
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Publication number: 20080023016Abstract: A novel nanocatalyst is disclosed containing titanium oxide, iron oxide, and calcium oxide. The catalyst comprises a layer of iron oxide in the gamma form supported on a titanium oxide core. Addition of calcium cations helps to stabilize the iron oxide in the gamma form. The iron oxide layer is on the order of a few nanometers thick on the surface of the titanium oxide core, in an “egg-in-shell” structure. The nanocatalyst is highly active in promoting the oxidation of compounds such as hydroquinone, catechol, other hydrocarbons, chlorinated phenols, and carbon monoxide, even at moderately elevated temperatures. The catalyst remains active in a pyrolytic environment for extended periods of time, and possesses high redox cycling potential. The efficiency of the catalyst is not strongly affected by coking in a combustion environment.Type: ApplicationFiled: July 13, 2005Publication date: January 31, 2008Inventors: Harold B. Dellinger, Slawomir M. Lomnicki
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Publication number: 20080011686Abstract: A method of removing contaminants from an aqueous solution comprising contacting the aqueous solution with limestone particles coated with iron oxyhydroxide and adsorbing the contaminants from the aqueous solution onto the particleType: ApplicationFiled: June 4, 2007Publication date: January 17, 2008Inventors: Rajiv Manohar Banavalie, Jose Antonio Trejo
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Patent number: 7291578Abstract: Polymeric anion exchangers are used as host materials in which hydrated Fe(III) Oxides (HFO) are irreversibly dispersed within the exchanger beads. Since the anion exchangers have positively charged quaternary ammonium functional groups, anionic ligands such as arsenates, chromates, oxalates, phosphates, phthalates can permeate in and out of the gel phase and are not subjected to the Donnan exclusion effect. Consequently, anion exchanger-supported HFO micro particles exhibit significantly greater capacity to remove arsenic and other ligands in comparison with cation exchanger supports. Loading of HFO particles is carried out by preliminary loading of the anion exchange resin with an oxidizing anion such as MnO4? or OCl?, followed by passage of a Ferrous Sulfate solution through the resin.Type: GrantFiled: August 24, 2004Date of Patent: November 6, 2007Inventors: Arup K. SenGupta, Luis H. Cumbal
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Patent number: 7288500Abstract: A supported catalyst for hydrogenating nitro groups of halonitro compounds manufactured from a support, a solvent, and a plurality of organometallic complexes. The organometallic complexes have the formula: wherein, R1-R6, are independently an R, OR, OC(?O)R, halogen, or combination thereof, where R stands for an alkyl or aryl group; Y1-Y4 are independently an O, S, N, or P atom; and M is a metal atom. The supported catalysts show much higher selectivity and activity when used to hydrogenate nitro groups on halonitro aromatic compounds than catalyst currently being used for such hydrogenation.Type: GrantFiled: August 31, 2005Date of Patent: October 30, 2007Assignee: Headwaters Technology Innovation, LLCInventors: Changkun Liu, Bing Zhou
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Patent number: 7268097Abstract: A desulfurizing agent comprising a silica-alumina carrier having an Si/Al mole ratio of 10 or less and nickel carried thereon; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a specific surface area of pores having a pore diameter of 3 nm or less of 100 m2/g or more; an Ni-Cu based desulfurizing agent comprising a carrier and, carried thereon, (A) nickel, (B) copper, and (C) an alkali metal or another metal; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a hydrogen adsorption capacity of 0.4 mmol/g or more; and methods for producing these nickel-based and nickel-copper-based desulfurizing agents. The above desulfurizing agents are capable of adsorbing and removing with good efficiency the sulfur contained in hydrocarbons derived from petroleum to a content of 0.2 wt. ppm or less and have a long service life.Type: GrantFiled: April 2, 2001Date of Patent: September 11, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hisashi Katsuno, Satoshi Matsuda, Kazuhito Saito, Masahiro Yoshinaka
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Patent number: 7250388Abstract: Medium for chromatographic separations. The medium includes a support with a surface on which interwoven polymers are coated to form a polymer surface. The polymers are covalently linked to the support surface. The polymers are each formed from one or more monomer types and at least one monomer type has an amine functional group. The medium also includes an active molecule immobilized on the polymer surface that is selected to separate reagent materials by chemical structure.Type: GrantFiled: November 7, 2003Date of Patent: July 31, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eric L Burch, James O. Stoffer, Thomas Schuman
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Patent number: 7147769Abstract: A composition comprising a metal oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter, and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: GrantFiled: August 25, 2003Date of Patent: December 12, 2006Assignee: ConocoPhillips CompanyInventors: Tushar V. Choudhary, Glenn W. Dodwell, Marvin M. Johnson, Edward L. Sughrue, II, Robert W. Morton