With Group Ib Metal Or Compound Patents (Class 208/246)
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Patent number: 11643867Abstract: There is provided a gas trapping material and vacuum heat insulation equipment where the gas trapping material can be activated in a sealing step of the vacuum heat insulation equipment, and production efficiency can be enhanced by maintaining a high gas trapping characteristic even when a gas is released in a baking step or in a sealing step under an air atmosphere. The gas trapping material contains porous metal oxide and silver particles having an average particle size of 0.5 nm to 100 nm inclusive.Type: GrantFiled: November 26, 2019Date of Patent: May 9, 2023Assignee: Panasonic Holdings CorporationInventors: Taigo Onodera, Takashi Naito, Tatsuya Miyake, Takuya Aoyagi, Shinichi Tachizono, Yuji Hashiba, Takahiro Ikabata
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Patent number: 9963644Abstract: The invention relates to a method for cleaning hydrocarbon mixtures, in which a contaminated hydrocarbon mixture comprising hydrocarbons having three to eight carbon atoms is at least partly freed of impurities by contacting with a solid sorbent, wherein the hydrocarbon mixture is exclusively in the liquid state during contact with the sorbent. The object of the invention is to specify a process for cleaning liquid C3 to C8 hydrocarbon mixtures, which is based on a readily available but non-carcinogenic sorbent and which achieves better purities compared to traditional molecular sieves. This object is achieved by using, as sorbents, solid materials of the following composition: copper oxide: 10% to 60% by weight (calculated as CuO); zinc oxide: 10% to 60% by weight (calculated as ZnO); aluminum oxide: 10% to 30% by weight (calculated as Al2O3); other substances: 0% to 5% by weight. Materials of this kind are otherwise used as catalysts in methanol synthesis.Type: GrantFiled: November 5, 2014Date of Patent: May 8, 2018Assignee: Evonik Degussa GmbHInventors: Frank Geilen, Stephan Peitz, Guido Stochniol, Markus Winterberg, Dietrich Maschmeyer, Armin Rix, Mathias Vogt
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Patent number: 9383326Abstract: A technique, including associated method and system, for on-line measurement of a trace element in a crude or heavy fuel stream for a refinery, including in one embodiment: providing at least one x-ray fluorescence (“XRF”) analyzer at a point for the refinery; analyzing the petroleum stream for chlorine using the analyzer; and providing results from the analyzer to refinery operators, to improve refinery operations. The analyzer may be a monochromatic wavelength XRF analyzer, wherein the analyzer focuses energy to/from the stream using an x-ray engine having at least one focusing, monochromating x-ray optic. The analyzer may be an MWDXRF or ME-EDXRF analyzer; and the trace element may be one or more of the following elements: S, Cl, P, K, Ca, V, Mn, Fe, Co, Ni, Cu, Zn, Hg, As, Pb, and Se; and in one embodiment the stream is crude, and the trace element is chlorine.Type: GrantFiled: June 14, 2012Date of Patent: July 5, 2016Assignee: X-RAY OPTICAL SYSTEMS, INC.Inventors: Albertus Beumer, Zewu Chen
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Patent number: 9193608Abstract: The removal of heavy metals from aqueous solutions using metal-doped titanium dioxide nanoparticles is a method that comprises contacting the aqueous solution with metal-doped titanium dioxide nanoparticles. The three transition metals tungsten, vanadium and iron were selected for doping of titanium dioxide. Removal of the toxic heavy metals Pb(II), Zn(II) and Cd(II) was studied intensively by using metal-doped titanium dioxide to measure the isotherms and kinetics. The isotherms studies showed that the highest removal percentage of Pb(II) was achieved by W-doped titanium dioxide, while Fe-doped titanium dioxide and V-doped titanium dioxide performed better for removal of Zn(II) and Cd(II), respectively.Type: GrantFiled: July 15, 2013Date of Patent: November 24, 2015Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Mousab Salah Aldeen Mirghani, Reyad Awwad Khalaf Shawabkeh, Naim Moh'd Abdallah Faqir, Mamdouh Ahmed Al-Harthi, Mohammad Ba Shammakh
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Publication number: 20150027927Abstract: Catalysts for oxidative sulfur removal and methods of making and using thereof are described herein. The catalysts contain one or more reactive metal salts dispersed on one or more substrates. Suitable reactive metal salts include those salts containing multivariable metals having variable valence or oxidation states and having catalytic activity with sulfur compounds present in gaseous fuel streams. In some embodiments, the catalyst contains one or more compounds that function as an oxygen sponge under the reaction conditions for oxidative sulfur removal. The catalysts can be used to oxidatively remove sulfur-containing compounds from fuel streams, particularly gaseous fuel streams having high sulfur content.Type: ApplicationFiled: January 17, 2013Publication date: January 29, 2015Applicant: INTRAMICRON, INC.Inventors: Hongyun Yang, Paul S. Dimick
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Patent number: 8940957Abstract: A method of removing heterocyclic sulfide impurities from a fluid stream is presented. The method comprises contacting the fluid stream with a sorbent comprising metallic copper.Type: GrantFiled: February 6, 2012Date of Patent: January 27, 2015Assignee: UOP LLCInventors: Vladislav Ivanov Kanazirev, Stephen Caskey, Thomas Traynor, Dante Simonetti
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Patent number: 8920635Abstract: Desulfurization of hydrocarbon feeds is achieved by flashing the feed at a target cut point temperature to obtain two fractions. A first fraction contains refractory organosulfur compounds, which boils at or above the target cut point temperature. A second fraction boiling below the target cut point temperature is substantially free of refractory sulfur-containing compounds. The second fraction is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level. The first fraction is contacted with gaseous oxidizing agent over an oxidation catalyst having a formula CuxZn1-xAl2O4 in a gas phase catalytic oxidation reaction zone to convert the refractory organosulfur compounds to SOx and low sulfur hydrocarbons. The by-product SOx is subsequently removed, producing a stream containing a reduced level of organo sulfur compounds.Type: GrantFiled: January 14, 2013Date of Patent: December 30, 2014Assignees: Saudi Arabian Oil Company, Boreskov Instutite of CatalysisInventors: Abdennour Bourane, Omer Refa Koseoglu, Zinfer Ismagilov, Svetlana Yashnik, Mikhail Kerzhentsev, Valentin Parmon
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Patent number: 8906227Abstract: Desulfurization of hydrocarbon feeds is achieved by first contacting the entire feed with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions; a flashing column downstream of the hydrodesulfurization reaction zone fractionates the effluent to obtain a first fraction which contains refractory organosulfur compounds and a second fraction that is substantially free of organosulfur compounds, since the organosulfur compounds boiling in the range of this fraction were the labile organosulfur compounds which were initially removed by mild hydrodesulfurization. The first fraction is contacted with a gaseous oxidizing agent over an oxidation catalyst having a formula CuxZn1-xAl2O4 in a gas phase catalytic oxidation reaction zone to convert the refractory organosulfur compounds to SOx and low sulfur hydrocarbons. The by-product SOx is subsequently removed, producing a stream containing a reduced level of organosulfur compounds.Type: GrantFiled: January 15, 2013Date of Patent: December 9, 2014Assignees: Suadi Arabian Oil Company, Boreskov Institute of CatalysisInventors: Abdennour Bourane, Omer Refa Koseoglu, Zinfer Ismagilov, Svetlana Yashnik, Mikhail Kerzhentsev, Valentin Parmon
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Patent number: 8524072Abstract: A catalyst for alkali-free purification of oil raw material, consisting of a metalocomplex selected from the group consisting of a solid metalocomplex and a liquid metalocomplex with a general formula (CuIICl)2O(L1)2-4(L2)1-4, where L1 is amino alcohol L2 is acetonitrol or single atom alcohol.Type: GrantFiled: May 24, 2010Date of Patent: September 3, 2013Assignee: Greendane LimitedInventors: Vladmir Konovalov, Irina Tarkhanova, Sergey Chernyshev
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Publication number: 20130109895Abstract: The present invention relates to methods for removing sulfur from a hydrocarbon fuel or fuel precursor feedstream, such as methods comprising contacting a hydrocarbon fuel or fuel precursor feedstream having a relatively low sulfur content with a sulfur sorbent material comprising an active copper component disposed on a zeolitic and/or mesoporous support under conditions sufficient to reduce the sulfur content by at least 20 wt % and/or to about 15 wppm or below, thus forming a hydrocarbon fuel product. In some advantageous embodiments, the contacting conditions can include a temperature of about 392° F. (about 200° C.) or less.Type: ApplicationFiled: September 18, 2012Publication date: May 2, 2013Applicant: ExxonMobil Research and Engineering CompanyInventors: William J. Novak, Joseph E. Gatt
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Patent number: 8425763Abstract: 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: GrantFiled: August 24, 2011Date of Patent: April 23, 2013Assignee: Auburn UniversityInventors: Bruce Tatarchuk, Hongyun Yang, Sachin Nair
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Patent number: 8409426Abstract: In crude oil fractions, fossil fuels, and organic liquids in general in which it is desirable to reduce the levels of sulfur-containing and nitrogen-containing components, the process reduces the level of these compounds via the application of heat, an oxidizing agent and, preferably, sonic energy. The invention is performed either as a continuous process or a batch process, and may further include optional steps of centrifugation or hydrodesulfurization.Type: GrantFiled: January 18, 2011Date of Patent: April 2, 2013Assignee: Petrosonics, LLCInventor: Mark Cullen
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Patent number: 8377290Abstract: Provided are methods of reducing a sulfur concentration in a liquid fuel and methods of forming a thiophene/metal complex in a liquid fuel. The method can involve combining a liquid fuel and at least one metal acetate to form a thiophene/metal complex and substantially removing the thiophene/metal complexes from the liquid fuel. A thiophene concentration in a liquid fuel is reduced by the formation of an insoluble complex salt, which can be removed by, for example, centrifuge, filtration, decantation, and/or distillation.Type: GrantFiled: March 31, 2009Date of Patent: February 19, 2013Assignee: James K. and Mary A. Sanders Family L.L.C.Inventors: Richard William Tock, James Kenneth Sanders, Duck Joo Yang
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Patent number: 8197674Abstract: This invention relates to thioetherification processes for the removal of mercaptans in charge gas streams. In particular, the invention relates to thioetherification processes for the removal of mercaptans using a catalyst comprising palladium and silver.Type: GrantFiled: September 9, 2008Date of Patent: June 12, 2012Assignee: Lummus Technology Inc.Inventors: Thomas Skourlis, Robert J. Gartside, Robert E. Trubac
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Publication number: 20120018351Abstract: 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: August 24, 2011Publication date: January 26, 2012Applicant: AUBURN UNIVERSITYInventors: Bruce Tatarchuk, Hongyun Yang, Sachin Nair
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Publication number: 20120018350Abstract: The desulfurization of fossil fuels is provided by the combination of fossil fuels with an aqueous mixture of ozone or hydrogen peroxide and a Tetraoctylphosphonium salt phase transfer catalyst, and the mixture is then subjected to reactive mixing to form oxidize sulfur compounds in the fuel. The polar oxidized sulfones species are removed via another mixing step. The desulfurization device can be in the form of a portable device which provides for continuous mixing-assisted desulfurization for the removal of sulfur containing compounds from fossil fuels such as diesel fuel.Type: ApplicationFiled: July 20, 2010Publication date: January 26, 2012Inventors: Hsin Tung Lin, Meng-Wei Wan, Ming-Chun Lu
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Publication number: 20120000825Abstract: The service life and deactivation rate of a reforming catalyst is improved through use of a new sulfur guard bed containing a chloride additive. This sulfur guard bed, which contains supported CuO material having an increased resistance to reduction, shows such improvement. Thus, the danger of run-away reduction followed by a massive release of water causing process upsets in a catalytic reforming process is practically eliminated. The fact that the guard bed material preserves the active metal phase—copper in an active (oxide) form is an important advantage leading to very low sulfur content in the product stream. The sulfur capacity per unit weight of sorbent is also significantly increased, making this sorbent a superior cost effective sulfur guard product.Type: ApplicationFiled: June 2, 2011Publication date: January 5, 2012
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Patent number: 8043989Abstract: A system is provided for desulfurizing a hydrocarbon fuel containing a light amount of methanol and a slight amount of water. The desulfurization system uses a Y-type zeolite-based desulfurizing agent containing at least copper arranged upstream of the system and an X-type zeolite-based desulfurizing agent containing at least silver arranged downstream of the system and thus can maintain desulfurization effect for a long period of time.Type: GrantFiled: March 4, 2009Date of Patent: October 25, 2011Assignee: Nippon Oil CorporationInventors: Yoshiyuki Nagayasu, Atsushi Segawa, Kazunori Miyazawa, Yoshihiro Kobori
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Patent number: 8002971Abstract: Processes and systems associated with hydrodynamic cavitation-catalyzed oxidation of sulfur-containing substances in a fluid are described. In one example method, carbonaceous fluid is combined with at least one oxidant to form a mixture and then the mixture is flowed through at least one local constriction in a flow-through chamber at a sufficient pressure and flow rate to create hydrodynamic cavitation in the flowing mixture having a power density of between about 3,600 kWatts/cm2 and about 56,000 kWatts/cm2 measured at the surface of the local constriction normal to the direction of fluid flow. The creation of hydrodynamic cavitation in the flowing mixture initiates one or more chemical reactions that, at least in part, oxidize at least some of the sulfur-containing substances in the carbonaceous fluid.Type: GrantFiled: June 9, 2008Date of Patent: August 23, 2011Assignee: Arisdyne Systems, Inc.Inventor: Oleg V. Kozyuk
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Publication number: 20110143229Abstract: A simple, compact process for cleansing hydrocarbon fuel such as jet fuel is disclosed. This process involves subjecting the fuel to an oxidative desulfurization process in a desulfurization reactor followed by passing the fuel through an adsorption bed. The cleansed desulfurized fuel may then be utilized directly in generation of hydrogen for fuel cell applications.Type: ApplicationFiled: August 24, 2007Publication date: June 16, 2011Inventors: Anand S. Chellappa, Donovan Pena, Zachary Wilson
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Publication number: 20110108465Abstract: In crude oil fractions, fossil fuels, and organic liquids in general in which it is desirable to reduce the levels of sulfur-containing and nitrogen-containing components, the process reduces the level of these compounds via the application of heat, an oxidizing agent and, preferably, sonic energy. The invention is performed either as a continuous process or a batch process, and may further include optional steps of centrifugation or hydrodesulfurization.Type: ApplicationFiled: January 18, 2011Publication date: May 12, 2011Inventor: MARK CULLEN
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Patent number: 7935248Abstract: The present invention provides adsorbents for deep denitrogenation/desulfurization of hydrocarbon oils, and more particularly to an adsorbent material that selectively adsorbs organonitrogen and organosulfur from transportation fuels at room temperature and atmospheric pressure.Type: GrantFiled: October 30, 2007Date of Patent: May 3, 2011Assignee: The University of New BrunswickInventors: Ying Zheng, Lingjun Chou
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Patent number: 7871512Abstract: In crude oil fractions, fossil fuels, and organic liquids in general in which it is desirable to reduce the levels of sulfur-containing and nitrogen-containing components, the process reduces the level of these compounds via the application of heat, an oxidizing agent and, preferably, sonic energy. The invention is performed either as a continuous process or a batch process, and may further include optional steps of centrifugation or hydrodesulfurization.Type: GrantFiled: August 20, 2003Date of Patent: January 18, 2011Assignee: Petrosonics, LLCInventor: Mark Cullen
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Patent number: 7842181Abstract: A composition and process for removing sulfur from middle distillate petroleum hydrocarbon fuels. The composition includes an alumina component and a carbon component. The composition is present in an amount effective to adsorb sulfur compounds from the fuel. The alumina component and the carbon component preferably collectively comprise a composite material. The composition can further include a sulfur component, preferably a metal sulfide or sulfur oxide. The composition can also further include at least one compound having a Group VI or Group VIII metal from the periodic table.Type: GrantFiled: December 6, 2006Date of Patent: November 30, 2010Assignee: Saudi Arabian Oil CompanyInventor: Ki-Hyouk Choi
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Publication number: 20100270211Abstract: This invention relates to a process for the desulfurization and denitrogenation of petroleum based hydrocarbon feeds with a mixture of at least one ionic liquid and at least one metal salt. Liquid or gas phase hydrocarbons contacted with the mixture to allow complexation of the sulfur and nitrogen species that are present in the processed stream.Type: ApplicationFiled: April 27, 2009Publication date: October 28, 2010Applicant: SAUDI ARABIAN OIL COMPANYInventor: Ryszard A. Wolny
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Patent number: 7820037Abstract: 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: GrantFiled: November 19, 2008Date of Patent: October 26, 2010Assignee: Osaka Gas Company LimitedInventors: Masataka Masuda, Shin-ichi Nagase, Susumu Takami, Osamu Okada
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Publication number: 20100243531Abstract: Provided are methods of reducing a sulfur concentration in a liquid fuel and methods of forming a thiophene/metal complex in a liquid fuel. The method can involve combining a liquid fuel and at least one metal acetate to form a thiophene/metal complex and substantially removing the thiophene/metal complexes from the liquid fuel. A thiophene concentration in a liquid fuel is reduced by the formation of an insoluble complex salt, which can be removed by, for example, centrifuge, filtration, decantation, and/or distillation.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Inventors: Richard William Tock, James Kenneth Sanders, Duck Joo Yang
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Patent number: 7749376Abstract: The present invention is a method for the adsorption of sulfur-containing compounds from a hydrocarbon feedstream, and in particular, an olefin feedstream. The method comprises contacting the sulfur-containing compound with a copper oxide/zinc oxide/aluminum oxide catalyst optionally promoted with a metal.Type: GrantFiled: August 15, 2005Date of Patent: July 6, 2010Assignee: Sud-Chemie Inc.Inventors: Wayne Turbevillle, Nora Yap, Yeping Cai, Jürgen Ladebeck
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Patent number: 7674368Abstract: Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude product is a liquid mixture at 25° C. and 0.101 MPa. Contacting conditions are controlled such that the crude feed, during contact, uptakes hydrogen at a selected rate to inhibit phase separation of the crude feed during contact. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.Type: GrantFiled: December 16, 2004Date of Patent: March 9, 2010Assignee: Shell Oil CompanyInventors: Opinder Kishan Bhan, Scott Lee Wellington
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Publication number: 20090283448Abstract: A hydrocarbon desulfurization system that circulates fluidizable solid particles through a fluidized bed reactor, a fluidized bed regenerator, and a fluidized bed reducer to thereby provide for substantially continuous desulfurization of a hydrocarbon-containing fluid stream and substantially continuous regeneration of the solid particles. A novel transport system is employed for transporting the solid particles between the reactor, the regenerator, and the reducer. The transport system uses close-coupled vessels and gravity flow between various vessels to minimize equipment cost and particle attrition.Type: ApplicationFiled: October 2, 2006Publication date: November 19, 2009Applicant: ConocoPhillips CompanyInventors: Victor G. Hoover, Max W. Thompson, Darrin D. Barnes, Joe D. Cox, Philip L. Collins, Christopher J. Lafrancois, Ricky E. Snelling, Jean B. Thesee, Robert Zapata
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Publication number: 20090065400Abstract: Compositions and processes are disclosed for removing sulfur and sulfur compounds from hydrocarbon fuel feedstocks. The feedstock is contacted with a regenerable sorbent such as a compound of the formula TixCeyO2 where 0<x/y?1 and where 0<x?1 and 0<y?1 capable of selectively adsorbing sulfur compounds present in the hydrocarbon feedstock at about 0° C. to about 100° C. such as at about 25° C.Type: ApplicationFiled: September 7, 2007Publication date: March 12, 2009Applicant: The Penn State Research FoundationInventors: Chunshan Song, Xiaoliang Ma, Shingo Watanabe, Fuxia Sun
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Publication number: 20090050535Abstract: The present invention provides an epoxidation reactor system for preparing an olefin oxide comprising: one or more purification zones comprising one or more purification vessels containing an absorbent comprising copper and zinc; and a reaction zone comprising one or more reactor vessels containing an epoxidation catalyst, wherein the reaction zone is positioned downstream from the one or more purification zones; a process for preparing an olefin oxide; and a process for preparing a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, and an alkanolamine.Type: ApplicationFiled: May 15, 2008Publication date: February 26, 2009Inventor: Wayne Errol Evans
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Patent number: 7491317Abstract: A method and apparatus for removing sulfur from a hydrocarbon-containing fluid stream wherein desulfurization is enhanced by improving the contacting of the hydrocarbon-containing fluid stream and sulfur-sorbing solid particulates in a fluidized bed reactor.Type: GrantFiled: June 7, 2005Date of Patent: February 17, 2009Assignee: China Petroleum & Chemical CorporationInventors: Paul F. Meier, Max W. Thompson, Victor G. Hoover, Guido R. Germana
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Publication number: 20090008295Abstract: Processes and systems associated with hydrodynamic cavitation-catalyzed oxidation of sulfur-containing substances in a fluid are described. In one example method, carbonaceous fluid is combined with at least one oxidant to form a mixture and then the mixture is flowed through at least one local constriction in a flow-through chamber at a sufficient pressure and flow rate to create hydrodynamic cavitation in the flowing mixture having a power density of between about 3,600 kWatts/cm2 and about 56,000 kWatts/cm2 measured at the surface of the local constriction normal to the direction of fluid flow. The creation of hydrodynamic cavitation in the flowing mixture initiates one or more chemical reactions that, at least in part, oxidize at least some of the sulfur-containing substances in the carbonaceous fluid.Type: ApplicationFiled: June 9, 2008Publication date: January 8, 2009Applicant: Arisdyne Systems, Inc.Inventor: Oleg V. Kozyuk
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Patent number: 7473350Abstract: A desulfurization system is operated in a manner which optimizes sulfur removal and octane retention. When the desulfurization reactor is operated at a specific ratio of total pressure to hydrogen partial pressure (PT/PH) and/or within a specific temperature range, optimum sulfur removal and octane retention are realized. The desulfurization reactor can be maintained at these optimized operating conditions by automatically adjusting one or more operating parameters of the desulfurization reactor in order to maintain a substantially constant hydrogen partial pressure (PH) in the reactor. Maintaining a relatively constant hydrogen partial pressure (PH) in the desulfurization reactor helps ensure a relatively consistent degree of desulfurization.Type: GrantFiled: January 13, 2005Date of Patent: January 6, 2009Assignee: China Petroleum & Chemical CorporationInventors: Ronald Eugene Brown, Warren Matthew Ewert
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Publication number: 20080308461Abstract: A method for removal of corrosive compounds from insulating oil. The insulating oil is exposed to at least one reducing agent.Type: ApplicationFiled: December 28, 2006Publication date: December 18, 2008Applicant: ABB RESEARCH LTD.Inventor: Mats Dahlund
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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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Patent number: 7445702Abstract: Propane and/or butanes are separated from a hydrocarbon feedstock contaminated with alkyl mercaptans by fractional distillation at such a pressure that the separated overheads stream containing said propane and/or butanes is at a temperature in the range 50 to 100° C. Sufficient oxygen is introduced into the hydrocarbon feedstock to oxidise the mercaptans therein and the resultant mixture is subjected to the fractional distillation in a column including at least one bed of a catalyst capable, under the prevailing conditions, of oxidising the mercaptans to higher boiling point sulphur compounds. These higher boiling point sulphur compounds are separated as part of the liquid phase from the distillation.Type: GrantFiled: October 30, 2003Date of Patent: November 4, 2008Assignee: Johnson Matthey PLCInventor: Peter Edward James Abbott
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Publication number: 20080251424Abstract: A method for removing sulfur from insulating oil. The oil is exposed to at least one sulfur scavenging material and at least one polar sorbent.Type: ApplicationFiled: April 29, 2005Publication date: October 16, 2008Applicant: ABB Technology Ltd.Inventor: Mats O. Dahlund
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Patent number: 7416655Abstract: An adsorbent composition comprising a nanostructured titanium oxide material of the formula TiO2-, where 0?×?1 with nanotubular and/or nanofibrilar morphology, high oxygen deficiency, having an orthorhombic JT crystalline phase described by at least one of the space groups 59 Pmmn, 63 Amma, 71Immm or 63 Bmmb, and comprising between 0 and 20 weight percent of a transition metal oxide is used for the selective adsorption of nitrogen compounds and/or sulfur compounds from light and intermediate petroleum fractions.Type: GrantFiled: May 4, 2005Date of Patent: August 26, 2008Assignee: Instituto Mexicano del PetroleoInventors: José Antonio Toledo Antonio, María Antonia Cortés Jacome, Gerardo Ferrat Torres, Carlos Angeles Chávez, Luis Francisco Flores Ortiz, Maria de Lourdes Araceli Mosqueira Mondragon, Esteban López Salinas, Jose Escobar Aguilar, Rodolfo Juventino Mora Vallejo, Fernando Alvarez Ramírez, Yosadara Ruiz Morales, Marcelo Lozada y Cassou
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Publication number: 20080197051Abstract: Disclosed herein are a desulfurizing agent for removing organic sulfur compounds, a preparation method thereof, and a method for removing organic sulfur compounds using the same. The desulfurizing agent consists of a copper-zinc-aluminum complex free of alkaline metal, with a large surface area. When being contacted with organic sulfur compounds, such as t-butylmercaptan, tetrahydrothiophene, dimethylsulfide, etc., the desulfurizing agent exhibits excellent desulfurization ability and is not de-graded especially at high temperatures as high as 150˜350° C.Type: ApplicationFiled: July 31, 2006Publication date: August 21, 2008Applicant: SK ENERGY CO., LTD.Inventors: Byong Sung Kwak, Young Seek Yoon, Jin Hong Kim, Il Su Kim, Keun Seob Choi, Jin Hwan Bang, Ki Won Jun, Hyung Tae Kim, Seung Moon Kim
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Publication number: 20070295648Abstract: An apparatus and method for the direct measurement of corrosive sulfur and other corrosive compounds is provided. The method and apparatus of the current invention provides a rapid, reliable and cost effective method to directly measure the content of corrosive compounds in various fluids, and in particular liquid petroleum and liquid petroleum products such as gasoline. The apparatus can be retrofit to existing analyzers where they exist, or easily installed in locations that require such analysis.Type: ApplicationFiled: February 2, 2007Publication date: December 27, 2007Applicant: ExxonMobil Research and Engineering CompanyInventors: Robert J. Falkiner, Tian C. Lau
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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: 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
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Publication number: 20040251168Abstract: A desulfurization system employing fluidizable and circulatable finely divided solid sorbent particulates that are transported between reactor, regenerator, and reducer vessels. Agglomeration of the sorbent particulates is minimized and circulation of the sorbent particulates is enhanced by controlling the location at which the sorbent particulates are withdrawn from the reducer.Type: ApplicationFiled: June 13, 2003Publication date: December 16, 2004Inventors: Paul F. Meier, Steven L. Lacy, Jason J. Gislason
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Publication number: 20040200758Abstract: A method for removing thiophene and thiophene compounds from liquid fuel includes contacting the liquid fuel with an adsorbent which preferentially adsorbs the thiophene and thiophene compounds. The adsorption takes place at a selected temperature and pressure, thereby producing a non-adsorbed component and a thiophene/thiophene compound-rich adsorbed component. The adsorbent includes either a metal or a metal cation that is adapted to form &pgr;-complexation bonds with the thiophene and/or thiophene compounds, and the preferential adsorption occurs by &pgr;-complexation. A further method includes selective removal of aromatic compounds from a mixture of aromatic and aliphatic compounds.Type: ApplicationFiled: December 3, 2003Publication date: October 14, 2004Inventors: Ralph T. Yang, Arturo J. Hernandez-Maldonado, Frances H. Yang, Akira Takahashi
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Publication number: 20040178117Abstract: A composition comprising a promoter, a metal oxide, a support component, and a silicon-containing material, 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: ApplicationFiled: March 11, 2003Publication date: September 16, 2004Inventors: Robert W. Morton, M. Bruce Welch, Roland Schmidt, Jason J. Gislason
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Publication number: 20040118748Abstract: The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises first treating C12 and higher hydrocarbon petroleum feedstock having nitrogen and sulfur containing compounds therein with a porous, particulate adsorbent comprising a silica matrix having an effective amount of metal atoms therein to cause the adsorbent to have Lewis acidity of at least 500 &mgr;mol/g and then treating the resultant feedstock to catalytic hydrodesulfurization to produce a hydrocarbon fuel having low sulfur and nitrogen content.Type: ApplicationFiled: December 19, 2002Publication date: June 24, 2004Inventors: Markus Friedrich Manfred Lesemann, Constanze Setzer
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Publication number: 20040118747Abstract: Desulfurization reactors, and fuel desulfurization systems incorporating them, comprise monolithic sulfur-adsorbent reactor packings having internal void spaces bounded by internal fuel contacting surfaces that support or contain active sulfur adsorbents for sulfur trapping, the reactors providing efficient fuel feed desulfurization at high liquid and/or gas feed rates and low pressure drops.Type: ApplicationFiled: December 18, 2002Publication date: June 24, 2004Inventors: Willard A. Cutler, Lin He, Lorraine K. Owens, Charles M. Sorensen
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Publication number: 20040118751Abstract: A novel hydrocarbon feedstream catalyst bed for the desulfurization of a gas or a liquid hydrocarbon feedstream and a process comprising passing a hydrocarbon feedstream over the catalyst bed is described. The bed comprises at least two catalysts having different sulfur compound affinities and/or specificities thereby improving the overall amount of sulfur compound removal. The process reduces the sulfur content in a gas hydrocarbon feedstream from up to about 300 ppm to less than about 500 ppb, and in a liquid hydrocarbon feedstream from up to about 3% to less than about 500 ppb.Type: ApplicationFiled: December 24, 2002Publication date: June 24, 2004Inventors: Jon P. Wagner, Eric J. Weston, R. Steve Spivey, R. Scott Osborne