Using Salt Or Alkaline Substance Patents (Class 502/25)
  • Patent number: 11458450
    Abstract: The present disclosure is directed to a mixed oxide composition comprising manganese, aluminum and/or magnesium, and a rare earth element; a method of making the mixed oxide composition; a NOx adsorber comprising the mixed oxide composition; an exhaust system for internal combustion engines comprising the NOx adsorber; and a method for reducing NOx in an exhaust gas that employs the NOx adsorber.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: October 4, 2022
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Desiree Duran-Martin, Jose Villoria
  • Patent number: 11358123
    Abstract: A method of recycling superabsorbent polymers derived from a used absorbent article, the method including: treating the superabsorbent polymers with ozone water after inactivation; reactivating, with an alkaline aqueous solution, the superabsorbent polymers treated with the ozone water; and adding hydrophilic fine particles to the superabsorbent polymers reactivated with the alkaline aqueous solution and then drying the superabsorbent polymers.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: June 14, 2022
    Assignee: Unicharm Corporation
    Inventors: Takayoshi Konishi, Takashi Kato, Kouichi Yamaki, Noritomo Kurita
  • Patent number: 10005046
    Abstract: An apparatus and method for vaporizing and transporting an alkali metal salt is shown. The apparatus has a first conduit capable of transporting an alkali metal salt solution and a second conduit in fluid communication with the first conduit, the second conduit capable of transporting steam so that the alkali metal salt is dissipated into the steam forming a solution that can be transported, such as to a remote reaction zone. The solution can be transported via a third conduit that is capable of being heated by a heat source. The method can be used to add a promoter to a dehydrogenation catalyst during a dehydrogenation reaction.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: June 26, 2018
    Assignee: FINA TECHNOLOGY, Inc.
    Inventors: Joseph E. Pelati, James R. Butler, Hollie Craig
  • Patent number: 9724687
    Abstract: Implementations herein relate to methods for reducing a desorption solution for regeneration of ion exchange resins in the field of regeneration of resins. The implementations solve problems related to low utilization rates of regeneration agents and high volumes of desorption solutions during the desorption process. The implementations include regenerating the ion exchange resins, and the regeneration solution becomes the desorption solution. After coagulating sedimentation of the desorption solution and slurry separation, a large amount of organic contents are removed from coagulation serum and a large amount of regenerate agents are left. The implementations further include adding the regeneration agent to the coagulation serum to form new or refreshed regeneration solution to regenerate the ion exchange resins. Accordingly, the coagulation serum may be generated from the desorption solution. These operations may be repeated multiple batches for resin regeneration.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: August 8, 2017
    Assignees: Nanjing University, Nanjing University & Yancheng Academy of Environmental Protection Technology and Engineering
    Inventors: Aimin Li, Zixiao Xu, Bicun Jiang, Chendong Shuang, Qing Zhou, Wentao Li, Xinchun Ding, Yeli Jiang, Mengqiao Wang, Ke Shen, Weiwei Zhou
  • Patent number: 9610563
    Abstract: The present invention relates to a filter material for water filters based on inorganic surfaces, whether they are natural or synthetic that it is regenerated after its first use and a method for activating and regenerating the filter material by the use of inert salt solutions and the energy provided by microwaves.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: April 4, 2017
    Inventors: Marlen Del Carmen Gutierrez Cutino, Diego Alonso Venegas Yazigi, Evgenia Spodine Spiridinova
  • Patent number: 9604206
    Abstract: A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst for hydrolyzing COS which is contained in a gas obtained by gasifying a carbon material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed time thereby removing poisoning substances adhering to the surface of the COS hydrolysis catalyst; and thus regenerating the COS hydrolysis catalyst.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 28, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masanao Yonemura, Akihiro Sawata, Yukio Tanaka, Hiroshi Yoshioka, Toshinobu Yasutake
  • Patent number: 9421525
    Abstract: Provided are an exhaust gas treatment catalyst for denitrifying an exhaust gas including sulfur oxides and vanadium discharged from a heavy oil combustion boiler, including: a support comprising any one or all of titanium oxide and silica wherein a content of silica is from 10% to 20%, and an active component supported in the support and comprising one selected from the group consisting of vanadium and tungsten.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: August 23, 2016
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Katsumi Nochi, Masanao Yonemura, Masanori Demoto, Masashi Kiyosawa
  • Patent number: 9346042
    Abstract: The present invention relates to a regeneration process for producing a regenerated ionic liquid catalyst from solids formed in an ionic liquid alkylation process wherein a first ionic liquid is used as a catalyst which is a composite ionic liquid comprising ammonium cations, and anions being composite coordinate anions derived from two or more metal salts, the regeneration process comprising (a) removing the solids from the reaction zone of the alkylation process; and (b) subsequently treating the solids with a second ionic liquid made from an ammonium salt as cation, and an aluminum salt as anion which is the same as the aluminum salt present in the first ionic liquid.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 24, 2016
    Assignee: Shell Oil Company
    Inventors: Rui Zhang, Zhichang Liu, Chunming Xu, Xianghai Meng, Peter Anton August Klusener
  • Patent number: 9024048
    Abstract: Apparatus and methods are provided for forming and processing multiphasic systems. In one embodiment, the invention provides a process for the manufacture of an epoxide, including reacting an olefinically unsaturated compound with an oxidant in the presence of a buffer component and a water-soluble manganese complex disposed in an aqueous phase having a first pH level in a first multiphasic system, adjusting the pH of the aqueous phase to a second pH level less than the first pH level, isolating at least a portion of the aqueous phase from the first multiphasic system, adjusting the pH of the at least a portion of the aqueous phase to a third pH level greater than the second pH level, and introducing the at least a portion of the aqueous phase into a second multiphasic system.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: May 5, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Mark Kapellen, Bart Van Den Berg, Prasad Muppa, Paul Haesakkers
  • Patent number: 8912366
    Abstract: The present invention provides a process for preparing an adamantane polyol by reacting an adamantane with a ruthenium compound and a hypochlorite in a biphasic water/organic solvent system. The process includes the steps of adding an inorganic adsorbent to a reaction system; and adding an alkali to a reaction mixture to separate the ruthenium compound together with the inorganic adsorbent, and reusing the separated ruthenium compound and inorganic adsorbent in a subsequent reaction.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: December 16, 2014
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takashi Ouchi, Yoshio Nishimura
  • Publication number: 20140271383
    Abstract: Methods of removing iron from a catalytic converter having an accumulation of one or more iron compounds and regenerating a catalytic converter are provided. A catalytic converter having an accumulation of one or more iron compounds embedded or deposited thereon can be treated with a substantially aqueous alkaline solution in which the substantially aqueous alkaline solution includes an antioxidant.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: STEAG ENERGY SERVICES GMBH
    Inventors: Birgit Marrino, Thies Hoffmann
  • Patent number: 8809573
    Abstract: A process for the production of acetic acid and/or methyl acetate by the carbonylation of methanol, methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a desilicated mordenite catalyst.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: August 19, 2014
    Assignee: BP Chemicals Limited
    Inventors: Gareth Gerald Armitage, Bogdan Costin Gagea, David John Law, John Glenn Sunley
  • Publication number: 20140213429
    Abstract: In a NOx removal catalyst used for removing nitrogen oxides in flue gas, when a silica (Si) component as an inhibitor that causes an increase in a SO2 oxidation rate accumulates on a surface of the catalyst, the silica component accumulating on the surface of the catalyst is dissolved, thereby regenerating the catalyst. Accordingly, the inhibitor such as the silica component covering the surface of the NOx removal catalyst can be removed, thereby enabling to provide a catalyst without having an increase in the SO2 oxidation rate of the regenerated NOx removal catalyst.
    Type: Application
    Filed: September 5, 2012
    Publication date: July 31, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsumi Nochi, Masashi Kiyosawa
  • Patent number: 8716158
    Abstract: A method for regenerating a solid filter containing iodine in the form of silver iodide and/or iodate and possibly molecular iodine physisorbed, in a solid filter containing silver in the form of nitrate. The iodine is extracted from the filter by putting the filter into contact with a basic aqueous solution containing a reducing agent. The extraction is achieved at room temperature, and then the filter is separated from this basic aqueous solution. Next, silver is extracted from the filter by putting the filter into contact with an acid aqueous solution. The filter is then separated from the acid aqueous solution. Finally, the filter is impregnated with silver by putting the filter into contact with a silver nitrate solution and then drying the filter. This method can be used in nuclear installations, notably factories for reprocessing used nuclear fuels.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: May 6, 2014
    Assignees: Areva NC, Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Aimé Vaudano, Frédéric Payot, Jean-Pierre Donnarel, Josiane Madeleine Courbis, Marie Pauline Madeleine Devisme
  • Publication number: 20140113801
    Abstract: Apparatus and methods are provided for forming and processing multiphasic systems. In one embodiment, the invention provides a process for the manufacture of an epoxide, including reacting an olefinically unsaturated compound with an oxidant in the presence of a buffer component and a water-soluble manganese complex disposed in an aqueous phase having a first pH level in a first multiphasic system, adjusting the pH of the aqueous phase to a second pH level less than the first pH level, isolating at least a portion of the aqueous phase from the first multiphasic system, adjusting the pH of the at least a portion of the aqueous phase to a third pH level greater than the second pH level, and introducing the at least a portion of the aqueous phase into a second multiphasic system.
    Type: Application
    Filed: June 13, 2012
    Publication date: April 24, 2014
    Applicant: Momentive Specialty Chemicals Inc.
    Inventors: Mark Kapellen, Bert Van Den Bert, Prasad Muppa, Paul Haesakkers
  • Publication number: 20140080695
    Abstract: Provided are an exhaust gas treatment catalyst for denitrifying an exhaust gas including sulfur oxides and vanadium discharged from a heavy oil combustion boiler, including: a support comprising any one or all of titanium oxide and silica wherein a content of silica is from 10% to 20%, and an active component supported in the support and comprising one selected from the group consisting of vanadium and tungsten.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 20, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsumi Nochi, Masanao Yonemura, Masanori Demoto, Masashi Kiyosawa
  • Patent number: 8673800
    Abstract: We provide a process and apparatus for preparing a used catalyst for disposal, comprising: a. hydrolyzing a used ionic liquid catalyst comprising an anhydrous metal halide to produce a hydrolyzed product; and b. separating the hydrolyzed product into a liquid phase and a solid phase; wherein the liquid phase comprises a non-water-reactive aqueous phase and a hydrocarbon phase; and wherein the solid phase comprises a solid portion of the hydrolyzed product, that is not water reactive. A vessel is used for the hydrolyzing and a separator is used for the separating.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: March 18, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Timken, Shawn Stephen Healy, Shawn Shlomo Winter
  • Patent number: 8652437
    Abstract: A method of manufacturing an artificial zeolite. The method includes the steps of: heating a waste insulator to form a molten insulator; quenching and pulverizing the molten insulator; and heat treating the quenched and pulverized insulator in an alkaline aqueous solution.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: February 18, 2014
    Assignee: Prometron Technics Corp.
    Inventors: Teruo Henmi, Takayuki Nakamura, Toshiaki Ubukata, Hirokuni Matsuda, Shuji Tada
  • Patent number: 8648007
    Abstract: An apparatus and method for vaporizing and transporting an alkali metal salt is shown. The apparatus has a first conduit capable of transporting an alkali metal salt solution and a second conduit in fluid communication with the first conduit, the second conduit capable of transporting steam so that the alkali metal salt is dissipated into the steam forming a solution that can be transported, such as to a remote reaction zone. The solution can be transported via a third conduit that is capable of being heated by a heat source. The method can be used to add a promoter to a dehydrogenation catalyst during a dehydrogenation reaction.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: February 11, 2014
    Assignee: Fina Technology, Inc.
    Inventors: Joseph E. Pelati, James R. Butler, Hollie Craig
  • Patent number: 8637418
    Abstract: A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant substance is introduced into pores of the catalyst base using a transport fluid and remains on pore wall areas after removal of the transport fluid. The introduction is carried out such that an amount of the catalytically relevant substance relative to the surface remains on the pore wall areas as a function of location within the pore and decreases within the pore after exceeding a specific pore depth. A blocking fluid can first be introduced into pore regions beyond the specific pore depth, thus blocking these regions when transport fluid containing the catalytically relevant substance is introduced.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: January 28, 2014
    Assignee: STEAG Energy Services GmbH
    Inventors: Hermann Brüggendick, Maik Blohm
  • Patent number: 8614159
    Abstract: A method of re-using a spent fluid catalytic cracking (FCC) catalyst, previously used in an FCC process, in an additional FCC process, where the method includes the steps of: providing FCC catalyst that has been utilized in an FCC process, defined as spent FCC catalyst, wherein the spent FCC catalyst includes both aluminum and at least one rare earth element therein; and reacting the spent FCC catalyst with an extracting agent to extract at least a portion of the at least one rare earth element from the spent FCC catalyst, while extracting no more than half of the aluminum from the spent FCC catalyst. After performing the reacting step, the reacted spent FCC catalyst can be used in an additional FCC process.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: December 24, 2013
    Inventor: Albert A. Vierheilig
  • Patent number: 8524623
    Abstract: A process for regenerating a spent ionic liquid catalyst including (a) applying a voltage across one or more pairs of electrodes immersed in a spent ionic liquid catalyst comprising conjunct polymer-metal halide complexes to provide freed conjunct polymers and a regenerated ionic liquid catalyst; and (b) separating the freed conjunct polymers from the regenerated ionic liquid catalyst is described. An alkylation process incorporating the regeneration process is also described.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: September 3, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Timken, Saleh Elomari, Thomas V. Harris, James N. Ziemer
  • Patent number: 8470725
    Abstract: A process for regenerating one or more deactivated cobalt comprising Fischer-Tropsch catalyst particle(s), comprising the steps of: (i) oxidizing the catalyst particle(s) at a temperature between 20 and 400° C.; (ii) treating the catalyst particle(s) for more than 5 minutes with a solvent, which solvent comprises an amine, (iii) drying the catalyst particle(s); and (iv) optionally reducing the catalyst particle(s) with hydrogen or a hydrogen comprising gas. This process may be preceded by a step in which Fischer-Tropsch product is removed from the catalyst particle(s).
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: June 25, 2013
    Assignee: Shell Oil Company
    Inventors: Gerrit Leendert Bezemer, Stephen Nkrumah
  • Patent number: 8440585
    Abstract: A method and apparatus is provided for regenerating a sorbent that has been poisoned by components derived from flue gas. The sorbent is treated with an agent to remove the poisoning components and introduce a promoting agent into the sorbent. The method and apparatus can also be used to enhance the effectiveness of a new sorbent.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: May 14, 2013
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Edwin S. Olson, Michael J. Holmes, John Henry Pavlish
  • Publication number: 20130065750
    Abstract: In a NOx removal catalyst used for removing nitrogen oxide in flue gas, when a silica (Si) component as an inhibitor that causes an increase in an SO2 oxidation rate accumulates on a surface of the NOx removal catalyst, the silica component accumulating on the surface of the NOx removal catalyst is dissolved, thereby regenerating the catalyst. Accordingly, the inhibitor such as the silica component covering the surface of the NOx removal catalyst can be removed, thereby enabling to provide a catalyst without having an increase in the SO2 oxidation rate of the regenerated NOx removal catalyst.
    Type: Application
    Filed: July 23, 2012
    Publication date: March 14, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsumi Nochi, Masashi Kiyosawa
  • Publication number: 20120325724
    Abstract: Processes for the rejuvenation of a spent adsorbent, wherein the adsorption capacity of the spent adsorbent may be repeatedly restored by treating the spent adsorbent with a basic solution and subsequent adsorbent activation, thereby allowing a plurality of adsorption cycles using a single adsorbent sample. Processes for ionic liquid catalyzed hydrocarbon conversion and hydrocarbon product purification are also disclosed.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 27, 2012
    Inventors: Michael S. Driver, Hye Kyung Timken
  • Publication number: 20120220448
    Abstract: A method for regenerating a solid filter containing iodine in the form of silver iodide and/or iodate and possibly molecular iodine physisorbed, in a solid filter containing silver in the form of nitrate. The iodine is extracted from the filter by putting the filter into contact with a basic aqueous solution containing a reducing agent. The extraction is achieved at room temperature, and then the filter is separated from this basic aqueous solution. Next, silver is extracted from the filter by putting the filter into contact with an acid aqueous solution. The filter is then separated from the acid aqueous solution. Finally, the filter is impregnated with silver by putting the filter into contact with a silver nitrate solution and then drying the filter. This method can be used in nuclear installations, notably factories for reprocessing used nuclear fuels.
    Type: Application
    Filed: July 16, 2010
    Publication date: August 30, 2012
    Applicant: AREVA NC
    Inventors: Aimé Vaudano, Frédéric Payot, Jean-Pierre Donnarel, Frédéric Devisme, Josiane Madeleine Courbis, Marie Pauline Madeleine Devisme
  • Publication number: 20120202679
    Abstract: A method and apparatus is provided for regenerating a sorbent that has been poisoned by components derived from flue gas. The sorbent is treated with an agent to remove the poisoning components and introduce a promoting agent into the sorbent. The method and apparatus can also be used to enhance the effectiveness of a new sorbent.
    Type: Application
    Filed: March 20, 2012
    Publication date: August 9, 2012
    Applicant: Energy & Environmental Research Center Foundation
    Inventors: Edwin S. Olson, Michael J. Holmes, John H. Pavlish
  • Publication number: 20120135856
    Abstract: The present invention provides a process for regenerating a deactivated heteropolymolybdophosphoric acid catalyst, comprising the steps of grinding the deactivated catalyst into particles having a particle size of 40 mesh or less, mixing the particles with a mixture comprising aqua ammonia, which is an aqueous solution containing ammonium ions and organic auxiliaries, kneading the mixture of particles and aqua ammonia in a kneader to obtain a paste, drying the paste, molding the paste into cylindrical particles with a through hole in its longitudinal axis, and heating the paste in atmosphere at 350˜450° C. for 1˜10 hours to produce the generated catalyst.
    Type: Application
    Filed: September 22, 2011
    Publication date: May 31, 2012
    Applicant: Shanghai HuaYi Acrylic Acid Co. Ltd.
    Inventors: Xin Wen, Linghua Zuo, Ge Luo, Xiaoqi Zhou, Yan Zhuang, Xiaodong Chu, Jingming Shao
  • Patent number: 8173566
    Abstract: A method and apparatus is provided for regenerating a sorbent that has been poisoned by components derived from flue gas. The sorbent is treated with an agent to remove the poisoning components and introduce a promoting agent into the sorbent. The method and apparatus can also be used to enhance the effectiveness of a new sorbent.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: May 8, 2012
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Edwin S. Olson, Michael J. Holmes, John H. Pavlish
  • Patent number: 8153542
    Abstract: A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant substance is introduced into pores of the catalyst base using a transport fluid and remains on pore wall areas after removal of the transport fluid. The introduction is carried out such that an amount of the catalytically relevant substance relative to the surface remains on the pore wall areas as a function of location within the pore and decreases within the pore after exceeding a specific pore depth. A blocking fluid can first be introduced into pore regions beyond the specific pore depth, thus blocking these regions when transport fluid containing the catalytically relevant substance is introduced.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 10, 2012
    Assignee: Steag Energy Services GmbH
    Inventors: Hermann Brüggendick, Maik Blohm
  • Patent number: 8148284
    Abstract: A system for effecting the pretreatment therewith of a sorbent comprising a conveying line (105), such as a pipe, and a plurality of solution nozzles operative for purposes of introducing a solution to treat the sorbent. More particularly, the conveying line (105) includes an inlet (107), an outlet (109), and an inner surface (105a) that is operative to define a passageway (190) through which sorbent particles are capable of being transported between the inlet (107) of the conveying line (105) and the outlet (109) of the conveying line (105).
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: April 3, 2012
    Assignee: ALSTOM Technology Ltd
    Inventors: James F. Durant, David J. Matteson, Kurt W. Johnson
  • Publication number: 20120053046
    Abstract: The present disclosure relates to methods for treating deactivated SCR catalysts having an increased SO2/SO3 conversion rate as a result of the accumulation of one or more iron compounds. The methods are characterized in that the catalysts are treated with an aqueous solution of an acidic reactive salt or hydrogen fluoride, with the addition of at least one antioxidant.
    Type: Application
    Filed: November 3, 2011
    Publication date: March 1, 2012
    Applicant: Steag Energy Services LLC
    Inventors: Thies Hoffmann, Birgit Marrino
  • Publication number: 20110077144
    Abstract: An apparatus and method for regenerating spent ion exchange resin is described. In one method, a fresh regenerant solution comprising sodium ions and chloride ions is prepared, and passed across spent cation exchange resin to regenerate the spent resin. To recover the spent regenerant solution, a regenerant treatment composition is added to the spent solution to form precipitate flocs, which are then separated out of the regenerant solution. The concentration of at least one of the sodium or chloride ions in the regenerant solution can also be adjusted to form fresh regenerant solution which can be reused.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: RAYNE DEALERSHIP CORPORATION
    Inventors: H. Martin JESSEN, Eric John DOLE, David MORGAN
  • Patent number: 7901644
    Abstract: Processes are described for the extraction and recovery of alkali metal from the char that results from catalytic gasification of a carbonaceous material. Among other steps, the processes of the invention include a hydrothermal leaching step in which a slurry of insoluble particulate comprising insoluble alkali metal compounds is treated with carbon dioxide and steam at elevated temperatures and pressures to effect the conversion of insoluble alkali metal compounds to soluble alkali metal compounds. Further, processes are described for the catalytic gasification of a carbonaceous material where a substantial portion of alkali metal is extracted and recovered from the char that results from the catalytic gasification process.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: March 8, 2011
    Assignee: GreatPoint Energy, Inc.
    Inventors: Alkis S. Rappas, Robert A. Spitz
  • Patent number: 7897126
    Abstract: Processes are described for the extraction and recovery of alkali metal from the char that results from catalytic gasification of a carbonaceous material. Among other steps, the processes of the invention include a hydrothermal leaching step in which a slurry of insoluble particulate comprising insoluble alkali metal compounds is treated with carbon dioxide and steam at elevated temperatures and pressures to effect the conversion of insoluble alkali metal compounds to soluble alkali metal compounds. Further, processes are described for the catalytic gasification of a carbonaceous material where a substantial portion of alkali metal is extracted and recovered from the char that results from the catalytic gasification process.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: March 1, 2011
    Assignee: Greatpoint Energy, Inc.
    Inventors: Alkis S. Rappas, Robert A. Spitz
  • Patent number: 7838455
    Abstract: Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve catalyst used in epoxidation of olefin through simple treatment using a mixture solvent comprising aqueous hydrogen peroxide and alcohol. According to the method of this invention, when the catalyst having decreased activity is regenerated, the activity of the regenerated catalyst is equal to that of new catalyst and can be maintained stable for a long period of time.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: November 23, 2010
    Assignee: SK Energy Co., Ltd.
    Inventors: Byong Sung Kwak, Seung Hoon Oh, Tae Jin Kim, Dae Hyun Choo, Young Min Chung
  • Patent number: 7833510
    Abstract: A method for producing hydrogen peroxide by an anthraquinone process includes the steps of: reducing with hydrogen a working solution containing an organic solvent and anthraquinone in the presence of a hydrogenation catalyst; and activating the hydrogenation catalyst when a hydrogenation selectivity has decreased due to repeated use, wherein the catalyst activation step includes a step of treating the hydrogenation catalyst with a first alkaline aqueous solution of pH 10 or above containing an alkali metal, and then washing the treated hydrogenation catalyst with water or a second alkaline aqueous solution that is more weakly alkaline than the first alkaline aqueous solution so as to set a catalyst soak solution comprising 5 parts by weight of pure water in admixture with 1 part by weight of the activated hydrogenation catalyst to a pH of 8.0 or above.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: November 16, 2010
    Assignee: Mitsubishi Gas Chemical Compayn, Inc.
    Inventors: Hiroshi Hasegawa, Katsuhiro Iura, Isao Hagiwara, Shinjiro Sawamoto
  • Patent number: 7741239
    Abstract: A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein the catalyst is poisoned by phosphorous components in the flue gas and the catalyst is treated using a base, preferably an alkali metal hydroxide.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: June 22, 2010
    Assignee: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Patent number: 7723251
    Abstract: A method of regeneration of a SCR catalyst for use in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein poisons are removed from the catalyst. The method is suitable for use during neutralization using C1 to C8 carboxylic acids.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: May 25, 2010
    Assignee: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Patent number: 7674739
    Abstract: A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one metal in a regeneration zone in the absence of added hydrogen under regeneration conditions for a time sufficient to increase the activity of the ionic liquid catalyst is described. In one embodiment, regeneration is conducted in the presence of a hydrocarbon solvent.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: March 9, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Saleh Elomari, Thomas V. Harris, Hye Kyung C. Timken, Steven E. Trumbull
  • Patent number: 7592282
    Abstract: A method of modifying an alkylation catalyst to reduce the formation of condensed hydrocarbon species thereon. The method comprises providing an alkylation catalyst comprising a plurality of active sites. The plurality of active sites on the alkylation catalyst may include a plurality of weakly acidic active sites, intermediate acidity active sites, and strongly acidic active sites. A base is adsorbed to a portion of the plurality of active sites, such as the strongly acidic active sites, selectively poisoning the strongly acidic active sites. A method of modifying the alkylation catalyst by providing an alkylation catalyst comprising a pore size distribution that sterically constrains formation of the condensed hydrocarbon species on the alkylation catalyst or by synthesizing the alkylation catalyst to comprise a decreased number of strongly acidic active sites is also disclosed, as is a method of improving a regeneration efficiency of the alkylation catalyst.
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: September 22, 2009
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Daniel M. Ginosar, Lucia Petkovic
  • Publication number: 20090233787
    Abstract: A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein the catalyst is poisoned by phosphorous components in the flue gas and the catalyst is treated using a base, preferably an alkali metal hydroxide.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 17, 2009
    Applicant: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Publication number: 20090233786
    Abstract: A method of regeneration of a SCR catalyst for use in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein poisons are removed from the catalyst. The method is suitable for use during neutralization using C1 to C8 carboxylic acids.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 17, 2009
    Applicant: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Publication number: 20090221417
    Abstract: A process is provided for recycling a catalyst slurry comprising an organic material and a solid catalyst having a metal component disposed on a support. The process comprises contacting the catalyst slurry with an inorganic acid, reacting the inorganic acid with the metal component to form an aqueous metal salt solution phase, and an organic material phase, and separating the support from at least one of the organic material phase and the aqueous metal salt solution phase.
    Type: Application
    Filed: June 5, 2008
    Publication date: September 3, 2009
    Inventors: Alex Magdics, Anna Michalski
  • Patent number: 7578984
    Abstract: A caustic recovery system comprising an oxygen source adapted to provide a gas stream comprising at least 30% oxygen. A method of regenerating caustic comprising intermingling spent caustic with a gas stream comprising at least 30% oxygen.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: August 25, 2009
    Assignee: Fluor Technologies Corporation
    Inventor: Charles F. Maitland
  • Patent number: 7559993
    Abstract: The invention relates to a process for decoating a used washcoat carrier substrate to produce a clean, inert carrier or substrate. In a preferred embodiment, a process according to the invention includes treating a washcoat catalyst substrate in an aqueous solution including a dispersant, an emulsifier, and at least one of an acid and a base. Alternatively, the first solution may include sodium hydroxide, sodium bicarbonate, or aluminum bicarbonate. The substrate is also subject to ultrasonic treatment, while treating the substrate in an aqueous solution preferably including a dispersant. The substrate may ultimately be rinsed, for example in deionized water. During treatment, solutions may be agitated, for example by air injection, directed stream of water or other agitation.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 14, 2009
    Assignee: SCR-Tech LLC
    Inventors: Nagesh Patel, Hans-Ulrich Hartenstein, Frank Wenz
  • Publication number: 20090018291
    Abstract: Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve catalyst used in epoxidation of olefin through simple treatment using a mixture solvent comprising aqueous hydrogen peroxide and alcohol. According to the method of this invention, when the catalyst having decreased activity is regenerated, the activity of the regenerated catalyst is equal to that of new catalyst and can be maintained stable for a long period of time.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 15, 2009
    Applicant: SK Energy Co., Ltd.
    Inventors: Byong-Sung Kwak, Seung Hoon Oh, Tae Jin Kim, Dae Hyun Choo, Young Min Chung
  • Publication number: 20090005235
    Abstract: The present invention provides a method of recycling a spent flue gas denitration catalyst and a method of determining a washing time of the spent flue gas denitration catalyst. The method of recycling the spent flue gas denitration catalyst includes physically removing solids deposited in the spent flue gas denitration catalyst, removing poisoning substances deposited in the spent flue gas denitration catalyst by washing the spent flue gas denitration catalyst with a washing liquid for a washing time determined by measuring the hydrogen ion concentration of the washing liquid and drying the resulting spent flue gas denitration catalyst.
    Type: Application
    Filed: January 15, 2008
    Publication date: January 1, 2009
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: In-Young Lee, Jung-Bin Lee, Dong-Wha Kim
  • Publication number: 20080170985
    Abstract: A method for producing hydrogen peroxide by an anthraquinone process includes the steps of: reducing with hydrogen a working solution containing an organic solvent and anthraquinone in the presence of a hydrogenation catalyst; and activating the hydrogenation catalyst when a hydrogenation selectivity has decreased due to repeated use, wherein the catalyst activation step includes a step of treating the hydrogenation catalyst with a first alkaline aqueous solution of pH 10 or above containing an alkali metal, and then washing the treated hydrogenation catalyst with water or a second alkaline aqueous solution that is more weakly alkaline than the first alkaline aqueous solution so as to set a catalyst soak solution comprising 5 parts by weight of pure water in admixture with 1 part by weight of the activated hydrogenation catalyst to a pH of 8.0 or above.
    Type: Application
    Filed: April 27, 2007
    Publication date: July 17, 2008
    Inventors: Hiroshi Hasegawa, Katsuhiro Iura, Isao Hagiwara, Shinjiro Sawamoto