Steam Patents (Class 502/55)
  • Patent number: 10814277
    Abstract: Presented is a process for the off-line regeneration of a deactivated nitrogen oxide decomposition catalyst of a selective catalytic reduction system that is a component of a flue gas treating system. The selective catalytic reduction system is isolated to allow for removal and replacement of deactivated SCR catalyst. The removed SCR catalyst may be regenerated off-line from the flue gas treating system. The off-line regenerated SCR catalyst can be used as a replacement SCR catalyst.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 27, 2020
    Assignee: SHELL OIL COMPANY
    Inventor: Guido Seng
  • Patent number: 10562008
    Abstract: As an improvement to processes for desulfurization of natural gas and synthetic natural gas streams that employ conventional zeolitic materials (absorbents), including copper-containing zeolites, pre-treatment methods and post-treatment methods are provided that lower the level of leachable benzene following desulfurization with the absorbents to <0.5 mg benzene/L leachate, while retaining within the absorbents a majority of sulfur adsorbed from a gas stream.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: February 18, 2020
    Assignee: CLARIANT CORPORATION
    Inventors: Jason E. Spencer, Gabrielle C. Ferrer, Tobias A. Henkel
  • Patent number: 10190443
    Abstract: The present invention relates to a method for decoupling the provision of electricity and high-pressure steam of a combined heat and power plant which has the primary purpose of providing process steam, i.e. which is heat-led.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: January 29, 2019
    Assignee: CURRENTA GMBH & CO. OHG
    Inventor: Rüdiger Franck
  • Patent number: 9205406
    Abstract: Methods and systems for producing activated carbon from a particulate coal feedstock that include the introduction of a buffering gas, a moisture spray, a finest carbon fraction as a fuel, and certain gas ratios. Different methods and system configurations allow the production of activated carbon or other heat-treated carbons while concurrently avoiding adverse reaction conditions.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: December 8, 2015
    Assignee: Pneumatic Processing Technologies, LLC
    Inventor: Michael A. Jones
  • Patent number: 9121606
    Abstract: A method in which a parent hydrocarbon-rich material is processed so as to produce both a carbon-rich solid material that has a higher carbon to hydrogen ratio than that of the parent material and a carbon-deficient combustible gas that has a lower carbon to hydrogen ratio than the parent material. In the process, the material is activated by exposing it to a hot gas stream having elevated levels of one or both of carbon dioxide and water vapor. The combustible gas is combusted to produce heat. At least about 80% of the heat is used in one or more endothermic steps that include drying coal or biomass.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: September 1, 2015
    Inventor: Srivats Srinivasachar
  • Patent number: 9056306
    Abstract: Two or more acidic gaseous species such as hydrogen sulphide and carbon dioxide from an adsorbent can be selectively removed from a feed gas by contacting the feed gas with an adsorbent for these acidic species, followed by: a. subjecting the adsorbent to a first purging gas, said first purging gas not containing said first acidic gaseous species and containing said second acidic gaseous species at a partial pressure which is at least the partial pressure of said second gaseous species in said feed gas; b. subsequently subjecting the adsorbent to a second purging gas, said second purging gas not containing said first gaseous species and, containing this second gaseous species at a partial pressure which is lower than the partial pressure of said second gaseous species in said feed gas.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 16, 2015
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Paul Dean Cobden, Hendricus Adrianus Johannes Van Dijk, Stéphane Walspurger
  • Patent number: 8969231
    Abstract: A method of producing an alumina-supported cobalt catalyst for use in a Fischer-Tropsch synthesis reaction, which comprises: calcining an initial ?-alumina support material at a temperature to produce a modified alumina support material; impregnating the modified alumina support material with a source of cobalt; calcining the impregnated support material, activating the catalyst with a reducing gas, steam treating the activated catalyst, and activating the steam treated catalyst with a reducing gas.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: March 3, 2015
    Assignee: GTL.FI AG
    Inventors: Erling Rytter, Sigrid Eri, Rune Myrstad, Odd Asbjørn Lindvåg
  • Patent number: 8927450
    Abstract: A reclaiming apparatus 106 includes: a sealed container 106a that is an absorbent reservoir for storing therein a part of an absorbent that has absorbed CO2 in flue gas, and a heater that heats the absorbent stored in the sealed container 106a. The reclaiming apparatus 106 distributes a part of the absorbent stored in the sealed container 106a, and brings the distributed absorbent into counter-current contact with steam. Because a part of the absorbent stored in the absorbent reservoir is brought into counter-current contact with the steam, absorbent component contained therein becomes volatilized, and is separated from depleted materials. In this manner, the absorbent component can be extracted from the depleted materials, and a loss of the absorbent can be reduced.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 6, 2015
    Assignees: Mitsubishi Heavy Industries, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Masaki Iijima, Masahiko Tatsumi, Yasuyuki Yagi, Kouki Ogura
  • Patent number: 8883666
    Abstract: One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator. The feed can include at least one of a gas oil, a vacuum gas oil, an atmospheric gas oil, a coker gas oil, a hydrotreated gas oil, a hydrocracker unconverted oil, and an atmospheric residue.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: November 11, 2014
    Assignee: UOP LLC
    Inventors: Daniel N. Myers, Paolo Palmas, David N. Myers
  • Patent number: 8877667
    Abstract: The invention relates to a process for regenerating catalysts containing mixed oxides from the group of alkali metal and/or alkaline earth metal oxides, aluminium oxide and silicon oxide, characterized in that the regeneration comprises the following features: i) treatment of the catalyst in situ, ii) contacting of the catalyst with water, iii) treatment of the catalyst within a temperature range from 100 to 400° C., iv) treatment of the catalyst within a pressure range from 0.1 to 2 MPa, v) treatment of the catalyst over a period of 0.1 to 24 h, vi) treatment of the catalyst with a specific catalyst hourly space velocity of 0.1 to 100 h?1.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: November 4, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Boeing, Dirk Roettger, Reiner Bukohl, Markus Winterberg, Dietrich Maschmeyer
  • Publication number: 20140213430
    Abstract: Two or more acidic gaseous species such as hydrogen sulphide and carbon dioxide from an adsorbent can be selectively removed from a Fig. la feed gas by contacting the feed gas with an adsorbent for these acidic species, followed by: a. subjecting the adsorbent to a first purging gas, said first purging gas not containing said first acidic gaseous species and containing said second acidic gaseous species at a partial pressure which is at least the partial pressure of said second gaseous species in said feed gas; b. subsequently subjecting the adsorbent to a second purging gas, said second purging gas not containing said first gaseous species and, containing this second gaseous species at a partial pressure which is lower than the partial pressure of said second gaseous species in said feed gas.
    Type: Application
    Filed: August 3, 2012
    Publication date: July 31, 2014
    Applicant: Stichting Energieonderzoek Centrum
    Inventors: Paul Dean Cobden, Hendricus Adrianus Johannes Van Dijk, Stephane Walspurger
  • Patent number: 8791038
    Abstract: The object of the present invention is to provide a catalyst regeneration process which can improve catalyst selectivity. A first aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a first fluidized bed regenerator and contacted with an oxygen-containing gas stream and optional steam to carry out a coke combustion reaction, wherein the resultant mixture of the partially regenerated catalyst and flue gas is introduced into a second fluidized bed regenerator and contacted with steam and an optional oxygen-containing gas stream to carry out a further regeneration reaction, and then the regenerated catalyst is introduced into the reactor. A second aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a fluidized dense bed regenerator and contacted with an oxygen-containing gas stream and steam to carry out a coke combustion reaction, and then the regenerated catalyst is introduced into the reactor.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 29, 2014
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Youhao Xu, Shouye Cui, Zhigang Zhang, Weimin Lu
  • Publication number: 20140155671
    Abstract: The various embodiments relate to a system and method for regenerating a direct oxidation catalyst that coverts H2S to elemental S. One embodiment of the method comprises regenerating a direct oxidation catalyst by contacting the direct oxidation catalyst with steam.
    Type: Application
    Filed: April 17, 2012
    Publication date: June 5, 2014
    Applicant: M-I L.L.C.
    Inventor: Ryan Larsen
  • 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: 8623777
    Abstract: This disclosure relates to a method for rejuvenating a catalyst, comprising contacting the catalyst with a gaseous feedstock at rejuvenation conditions for at least one hour to form a rejuvenated catalyst and a gaseous product, wherein the catalyst comprises at least 10 wt. % of a molecular sieve, wherein the catalyst prior to the contacting step comprises from 0.001 wt. % to 45 wt. % of hydrocarbons and 0.001 to 10 wt.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: January 7, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Terry Eugene Helton, Vijay Nanda, Wei-Ping Tai, Teresa Ann Jurgens-Kowal, Kathleen Marie Keville
  • Patent number: 8529679
    Abstract: In certain embodiments, a system includes a gas cleaner. The gas cleaner includes a solvent to clean a syngas. The system also includes a heat exchanger configured to heat a liquid to generate a vapor. The system further includes a vapor absorption refrigeration (VAR) cycle coupled to the gas cleaner and the heat exchanger. The VAR cycle is configured to cool the solvent. In addition, the vapor drives the VAR cycle.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: September 10, 2013
    Assignee: General Electric Company
    Inventors: Asiff Apdul Supahan, Viswanath Balasubramaniyan, Saumar Jyoti Hazarika
  • Patent number: 8415264
    Abstract: One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator. The feed can include at least one of a gas oil, a vacuum gas oil, an atmospheric gas oil, a coker gas oil, a hydrotreated gas oil, a hydrocracker unconverted oil, and an atmospheric residue.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 9, 2013
    Assignee: UOP LLC
    Inventors: Daniel N. Myers, Paolo Palmas, David Nathan Myers
  • Patent number: 8388902
    Abstract: A method for regenerating activated coke used for treating wastewater or sewage is provided. The method includes loading the activated coke to an environment under 150 to 250° C., heating the activated coke to a temperature of 700 to 850° C. for about 40 to 90 minutes; and providing a steam to the activated coke with a rate of 0.1 to 0.5 m3/(ton of activated coke). When the activated coke is being heated at the temperature, it generates a gas mixture including a steam portion and at least a paraffine gas. The gas mixture flows along a reverse direction relative to a flow of cooling water, so that the steam portion is converted into a part of the cooling water for recycling. The paraffine gas is used as a fuel. An apparatus for regenerating the activated coke used for treating wastewater or sewage is also provided.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: March 5, 2013
    Assignees: Dawei Zhang, Mississippi International Water, Inc.
    Inventor: Dawei Zhang
  • Patent number: 8383538
    Abstract: One exemplary embodiment can be an apparatus for treating a hydrocarbon stream having one or more compounds with a boiling point of about 140° to about 450° C. The apparatus can include an extraction zone and a regeneration zone. The extraction zone can include at least one settler. Each settler can have a height and a length. Typically the length is greater than the height. Also, the settler can form a boot, which can be adapted to receive a feed at one end. The regeneration zone may include a regenerator for an ionic liquid. The regenerator can include a column adapted to provide a regenerated ionic liquid to the extraction zone.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: February 26, 2013
    Assignee: UOP LLC
    Inventors: Manuela Serban, Kurt M. Vanden Bussche, Alakananda Bhattacharyya, Luigi Laricchia, John P. Brady, David N. Myers
  • Patent number: 8383544
    Abstract: Nitrogen oxide storage catalysts are used to remove the nitrogen oxides present in the lean exhaust gas of lean-burn engines. As a result of the stress due to high temperatures in vehicle operation, they are subject to thermal aging processes which affect both the nitrogen oxide storage components and the noble metals present as catalytically active components. The present invention provides a process with which the catalytic activity of a nitrogen oxide storage catalyst which comprises, in addition to platinum as a catalytically active component, basic compounds of strontium and/or barium on a support material comprising cerium oxide, said catalytic activity being lost owing to the thermal aging process, can be at least partly restored. The two-stage process is based on the fact that strontium and/or barium compounds formed during the thermal aging with the support material, which also comprise platinum, are recycled to the catalytically active forms by controlled treatment with specific gas mixtures.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: February 26, 2013
    Assignee: Umicore AG & Co., KG
    Inventors: Stephan Eckhoff, Meike Wittrock, Ulrich Goebel, Ina Grisstede, Ruediger Hoyer, Wilfried Mueller, Thomas Kreuzer, Maria Cristina Casapu, Jan-Dierk Grunwaldt, Marek Maciejewski, Aflons Baiker
  • Patent number: 8349090
    Abstract: A process for removing carbonaceous deposits on surfaces of catalysts and plant parts by treating the deposits with a superheated stream of steam admixed at least temporarily with an oxygenous gas is provided, which involves, in each case monitoring the offgas CO2 content after condensation of the steam, at a temperature of at least 300° C.: (a) treating the carbonaceous deposits with superheated steam at a temperature of at least 300° C. until the CO2 content of the offgas has exceeded a maximum; (b) then, with further supply of superheated steam, commencing oxygen supply, the amount of oxygen supplied being adjusted such that the CO2 content in the offgas decreases further until it has fallen to a value of <1% by volume; and then (c) ending the supply of superheated steam and passing an oxygenous gas over remaining amounts of carbonaceous deposits until the deposits have been virtually removed.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: January 8, 2013
    Assignee: BASF SE
    Inventors: Manfred Winter, Hagen Weigl, Andreas Kramer
  • Publication number: 20120322899
    Abstract: A method for producing a regenerated Fischer-Tropsch synthesis catalyst obtained by regenerating a spent catalyst used in a Fischer-Tropsch synthesis reaction, comprising a steaming step of bringing the above spent catalyst into contact with a mixed gas comprising 1 to 30% by volume of steam and an inert gas at a pressure of atmospheric pressure to 5 MPa and a temperature of 150 to 350° C., the above spent catalyst being a spent catalyst in which cobalt and/or ruthenium is supported on a carrier comprising silica with an average pore diameter measured by a nitrogen adsorption method of 4 to 25 nm, and of which activity represented by an initial carbon monoxide conversion is 40 to 95%, based on the activity of a corresponding unused catalyst.
    Type: Application
    Filed: February 14, 2011
    Publication date: December 20, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Hideki Ono, Yoshiyuki Nagayasu, Kazuaki Hayasaka
  • Patent number: 8318125
    Abstract: A catalyst having decreased activity is subjected to a contact treatment with a reducing gas containing carbon monoxide and/or hydrogen. Also, the catalyst can be effectively activated by being treated by contacting with an oxidizing gas after having been treated by contacting with the reducing gas. As the catalyst for production of chlorine, a ruthenium catalyst, particularly a catalyst containing ruthenium oxide is suitably activated.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: November 27, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Youhei Uchida, Kohei Seki
  • Publication number: 20120149549
    Abstract: The invention relates to a process for regenerating catalysts containing mixed oxides from the group of alkali metal and/or alkaline earth metal oxides, aluminium oxide and silicon oxide, characterized in that the regeneration comprises the following features: i) treatment of the catalyst in situ, ii) contacting of the catalyst with water, iii) treatment of the catalyst within a temperature range from 100 to 400° C., iv) treatment of the catalyst within a pressure range from 0.1 to 2 MPa, v) treatment of the catalyst over a period of 0.1 to 24 h, vi) treatment of the catalyst with a specific catalyst hourly space velocity of 0.1 to 100 h?1.
    Type: Application
    Filed: June 16, 2010
    Publication date: June 14, 2012
    Applicant: Evonik Oxeno GmbH
    Inventors: Christian Boeing, Dirk Roettger, Reiner Bukohl, Markus Winterberg, Dietrich Maschmeyer
  • Publication number: 20120085708
    Abstract: Mesoporous activated carbon is disclosed. In at least some embodiments, virgin activated carbon to be processed may be coconut shell-based. The enhanced activated carbon may have a mesopore structure of at least about 10%. The enhanced activated carbon may be produced through a calcium-catalyzed activation process. A chelator may also be used. Catalyzed thermal activation may be carried out until a desired mass loss is achieved.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 12, 2012
    Applicant: SIEMENS INDUSTRY, INC.
    Inventor: Adam M. Redding
  • Publication number: 20120058030
    Abstract: Disclosed is a catalyst for reforming a tar-containing gas, wherein the catalyst contains at least one composite oxide as oxide containing nickel, magnesium, cerium and aluminum and the content of alumina as a single compound is limited to 5% by mass or less.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 8, 2012
    Inventors: Kimihito Suzuki, Kenichiro Fujimoto
  • Publication number: 20120004092
    Abstract: A method for regenerating an adsorber or absorber on board a submarine, wherein the adsorber or absorber is present in the interior of the submarine for binding metabolically generated CO2-containing harmful gases, and wherein the metabolically generated CO2-containing harmful gases are transferred outboard via a compressor. The thermal energy for regenerating the adsorber or absorber is generated by burning a hydrocarbonaceous energy carrier with oxygen, wherein at least one combustion product, together with the metabolically generated CO2-containing harmful gases, is transferred outboard via the compressor.
    Type: Application
    Filed: June 14, 2011
    Publication date: January 5, 2012
    Applicant: Astrium GmbH
    Inventors: Willigert RAATSCHEN, Lutz Schauer, Helmut Westermann, Carsten Matthias
  • Patent number: 8062507
    Abstract: A process for stripping gases from catalyst material in which catalyst travels down baffles at a first acute angle and then at a second acute angle on the same baffle. Traveling down the baffle at the second angle assures the catalyst will cross a downcomer channel and land on an adjacent baffle.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: November 22, 2011
    Assignee: UOP LLC
    Inventors: Jason P. Lambin, Keith A. Couch, Paolo Palmas, Giovanni Spinelli
  • Patent number: 8007658
    Abstract: A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: August 30, 2011
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
  • Patent number: 8007660
    Abstract: A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: August 30, 2011
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
  • Patent number: 8007659
    Abstract: A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: August 30, 2011
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis, Aaron Tomasek, Richard L. Shao
  • Publication number: 20110189075
    Abstract: The present disclosure provides a method for removing carbon dioxide from a gas stream without consuming excess energy, wherein a solid sorbent material is used to capture the carbon dioxide. The solid sorbent material may utilize a water-swing for regeneration. Various geometric configurations are disclosed for advantageous recovery of CO2 and regeneration of the sorbent material.
    Type: Application
    Filed: June 4, 2009
    Publication date: August 4, 2011
    Inventors: Allen B. Wright, Klaus S. Lackner, Ryuhei Ishikawa
  • Publication number: 20110182792
    Abstract: The present invention provides a method for producing a highly active catalyst for reforming tar-containing gas used to treat crude gas for chemical energy conversion consisting of converting to a fuel composition consisting mainly of methane, hydrogen and the like, by utilizing sensible heat possessed by crude gas generated during thermal decomposition of carbonaceous raw materials, and using the high chemical reaction activity of high-temperature tar contained in and incidental to the crude gas to convert the tar to light hydrocarbons in the presence of a catalyst; a tar reforming method; and, a method for regenerating a catalyst for reforming tar-containing gas.
    Type: Application
    Filed: September 15, 2009
    Publication date: July 28, 2011
    Inventors: Kimihito Suzuki, Kenichiro Fujimoto
  • Patent number: 7985704
    Abstract: A method of regenerating an absorbent includes preparing a reactor having a gas inlet portion and a discharge portion, filling the reactor with a reforming catalyst and an absorbent for absorbing carbon dioxide, feeding the feedstock gas and the steam via the gas inlet portion to the reactor to allow a steam reforming reaction to take place, allowing the absorbent to absorb carbon dioxide generated with hydrogen at the steam reforming reaction, and releasing the carbon dioxide from the absorbent after the carbon dioxide absorption capacity of the absorbent has been degraded. In this method, the temperature in an inside of the reactor is set to 625° C. or more at the release of the carbon dioxide, and an inert gas is fed via the discharge portion to the reactor.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: July 26, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Essaki, Takehiko Muramatsu, Masahiro Kato, Yasuhiro Kato
  • Patent number: 7968068
    Abstract: The present invention is directed to a novel metal-promoted zeolite catalyst, a method of producing the catalyst and a method of using the catalyst for the selective catalytic reduction of NOx with improved hydrothermal durability. The novel metal-promoted zeolite is formed from a low sodium zeolite and is hydrothermally treated after metal ion-exchange.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: June 28, 2011
    Assignee: BASF Corporation
    Inventors: Ivor Bull, Ahmad Moini, Gerald Stephen Koermer, Joseph Allan Patchett, William Michael Jaglowski, Stanley Roth
  • Patent number: 7964168
    Abstract: The CO2 contained in combustion fumes is captured by carrying out at least the following steps in combination: a) a fuel is burned, producing combustion fumes; b) the fumes are placed in contact with an absorbent solution in order to produce CO2-poor fumes and a CO2-laden solution; c) the CO2-laden solution is regenerated in a thermal regeneration column (RE) in order to produce a regenerated absorbent solution and a CO2-rich gaseous effluent (5); and d) the CO2-rich gaseous effluent is cooled in order to obtain a CO2-enriched gaseous fraction which is evacuated, and a liquid fraction, which is heated by heat exchanged with the combustion fumes and then introduced at the head of regeneration column (RE) as reflux (7).
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 21, 2011
    Assignees: IFP, ALSTOM Technology Ltd.
    Inventors: Thorsten Burkhardt, Pierre-Antoine Bouillon, Jean-Claude Magdelenat
  • Publication number: 20110144398
    Abstract: Process for regenerating a ruthenium-containing supported hydrogenation catalyst. wherein the catalyst is treated with steam and then dried. Integrated process for hydrogenating benzene to cyclohexane in the presence of a ruthenium-containing supported catalyst, comprising, as well as the hydrogenation step. the catalyst regeneration steps.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 16, 2011
    Applicant: BASF SE
    Inventors: Daniela Mirk, Christoph Schappert, Uwe Stabel, Eberhardt Gaffron, Roman Prochazka
  • Publication number: 20110092355
    Abstract: A reclaiming apparatus 106 includes: a sealed container 106a that is an absorbent reservoir for storing therein a part of an absorbent that has absorbed CO2 in flue gas, and a heater that heats the absorbent stored in the sealed container 106a. The reclaiming apparatus 106 distributes a part of the absorbent stored in the sealed container 106a, and brings the distributed absorbent into counter-current contact with steam. Because a part of the absorbent stored in the absorbent reservoir is brought into counter-current contact with the steam, absorbent component contained therein becomes volatilized, and is separated from depleted materials. In this manner, the absorbent component can be extracted from the depleted materials, and a loss of the absorbent can be reduced.
    Type: Application
    Filed: April 1, 2010
    Publication date: April 21, 2011
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Masaki IIJIMA, Masahiko TATSUMI, Yasuyuki YAGI, Kouki OGURA
  • Publication number: 20100311568
    Abstract: A method for regenerating activated coke used for treating wastewater or sewage is provided. The method includes loading the activated coke to an environment under 150 to 250° C., heating the activated coke to a temperature of 700 to 850° C. for about 40 to 90 minutes; and providing a steam to the activated coke with a rate of 0.1 to 0.5 m3/(ton of activated coke). When the activated coke is being heated at the temperature, it generates a gas mixture including a steam portion and at least a paraffine gas. The gas mixture flows along a reverse direction relative to a flow of cooling water, so that the steam portion is converted into a part of the cooling water for recycling. The paraffine gas is used as a fuel. An apparatus for regenerating the activated coke used for treating wastewater or sewage is also provided.
    Type: Application
    Filed: December 16, 2008
    Publication date: December 9, 2010
    Inventor: Dawei Zhang
  • Publication number: 20100300077
    Abstract: Nitrogen oxide storage catalysts are used to remove the nitrogen oxides present in the lean exhaust gas of lean-burn engines. As a result of the stress due to high temperatures in vehicle operation, they are subject to thermal aging processes which affect both the nitrogen oxide storage components and the noble metals present as catalytically active components. The present invention provides a process with which the catalytic activity of a nitrogen oxide storage catalyst which comprises, in addition to platinum as a catalytically active component, basic compounds of strontium and/or barium on a support material comprising cerium oxide, said catalytic activity being lost owing to the thermal aging process, can be at least partly restored. The two-stage process is based on the fact that strontium and/or barium compounds formed during the thermal aging with the support material, which also comprise platinum, are recycled to the catalytically active forms by controlled treatment with specific gas mixtures.
    Type: Application
    Filed: April 16, 2008
    Publication date: December 2, 2010
    Inventor: Stephan Eckhoff
  • Publication number: 20100292071
    Abstract: A new process for producing a SAPO molecular sieve is disclosed wherein a mixture of a P source with an Al source is subjected to a digestion step under stirring before adding a Si source and a template. The slurry resulting after addition of all chemicals is subjected to a pH adjustment followed by the usual hydrothermal treatment at higher temperature in an autoclave. In this way, very pure highly crystalline SAPO molecular sieves such as SAPO-34 are obtained with a very high yield. In addition, the SAPOs produced this way have an exceptional activity in the dehydration reactions and can be employed as a active component of catalysts for the production of valuable dehydration products from methanol such as, but not limited to, olefins and dimethylether (DME).
    Type: Application
    Filed: June 30, 2008
    Publication date: November 18, 2010
    Applicant: CASALE CHEMICALS S.A.
    Inventors: Cristina Ferrini, Daniel Herein, David Linke, Uwe Rodemerck, Evgeny Kondratenko
  • Patent number: 7829492
    Abstract: A process for removing sulfur and sulfur compounds from a catalyst includes the following steps: exposing the catalyst to a reducing atmosphere and exposing the catalyst to microwave energy. Desorption of the sulfur and sulfur compounds from the catalyst occurs at a temperature less than 600 degrees centigrade.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: November 9, 2010
    Assignees: Toyota Motor Corporation, The University of Connecticut
    Inventors: Paul T Fanson, Hirohito Hirata, Masaya Ibe, Steven L Suib, Sinue Gomez, Kinga Malinger
  • Patent number: 7745675
    Abstract: This invention relates to a process for regeneration of a zeolite catalyst, specifically an aluminosilicate zeolite with germanium substituted in the framework for silicon and with platinum deposited on the zeolite. The catalyst may be used in a process for aromatization of alkanes, specifically C2-C8 alkanes. The regeneration process 1) removes coke and sulfur from the catalyst via oxidation, 2) redisperses platinum on the surface of the catalyst via chlorine gas, 3) removes chlorine and bind Pt to the surface of the zeolite by steaming, 4) reduces the catalyst in hydrogen, and 5) optionally, resulfides the catalyst. The zeolite may be a MFI zeolite. The catalyst may be bound with an inert material which does not act as a binding site for platinum during the regeneration process, for example, silica.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 29, 2010
    Assignee: Saudi Basic Industries Corporation
    Inventors: Paul E. Ellis, Gopalakrishnan G. Juttu, Alla K. Khanmamedova, Scott F. Mitchell, Scott A. Stevenson
  • Publication number: 20100152022
    Abstract: A process is disclosed for regenerating a used catalyst comprising two or more noble metals supported on a carrier. The method comprises calcining a used catalyst comprising a noble metal and a transition metal supported on an inorganic carrier in an oxygen-containing gas to produce a calcined catalyst; and contacting the calcined catalyst with a hydrogen-containing gas at a temperature higher than 430° C.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: Qi Sun, George B. Nowowiejski
  • Patent number: 7727380
    Abstract: Disclosed is a process for combusting dry gas to heat the air supplied to an FCC regenerator to increase its temperature and minimize production of undesirable combustion products. Preferably, the dry gas is a selected FCC product gas. Alternatively or additionally, dry gas from an FCC product stream is separated and delivered to an expander to recover power before combustion.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 1, 2010
    Assignee: UOP LLC
    Inventors: Keith A. Couch, Xin X. Zhu, James P. Glavin
  • Patent number: 7704475
    Abstract: The present invention is directed to a novel metal-promoted zeolite catalyst, a method of producing the catalyst and a method of using the catalyst for the selective catalytic reduction of NOx with improved hydrothermal durability. The novel metal-promoted zeolite is formed from a low sodium zeolite and is hydrothermally treated after metal ion-exchange.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 27, 2010
    Assignee: BASF Catalysts LLC
    Inventors: Ivor Bull, Ahmad Moini, Gerald Stephen Koermer, Joseph Allan Patchett, William Michael Jaglowski, Stanley Roth
  • Patent number: 7695702
    Abstract: A system for optimizing operation of an amine regeneration system comprising a flash tank, a rich/lean heat exchanger, a still, a reflux condenser, a reflux accumulator, a pump, a reboiler, and a flash tank pressurization assembly.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: April 13, 2010
    Assignee: Newpoint Gas Services, Inc.
    Inventors: Roy Wade Rhodes, Quenten Zane Rhodes, II
  • Publication number: 20100062926
    Abstract: A method for regeneration of a rich absorbent having absorbed CO2 (5) to give a regenerated, or lean absorbent (4) wherein the lean absorbent leaving the regenerator column is flashed (32) to produce a gaseous phase (33) that is compressed (34) and reintroduced into the regeneration column, and a liquid lean absorbent phase (4) that is heat exchanged (7) against the rich absorbent.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 11, 2010
    Inventors: Simon Woodhouse, Pål Rushfeldt
  • Publication number: 20100029466
    Abstract: A method. and plant for regeneration of a rich absorbent having absorbed C02, to give a regenerated, or lean absorbent, and C02, where the rich absorbent is regenerated by stripping against steam in a regenerating column (8), where gas, mainly comprising released C02 and steam, is withdrawn from the top of the column (9) and separated (25) to give a stream of C02 that is removed, and condensed water (27) that is recycled into the regenerator column, and where lean, or regenerated, absorbent is withdrawn from the base of the column (4), wherein the gas that is withdrawn from the top of the regenerator column (9) is compressed (21) and cooled by heat exchanging to recover the heat (23,24), before separation of the gas into C02 and water.
    Type: Application
    Filed: November 26, 2007
    Publication date: February 4, 2010
    Applicant: AKER CLEAN CARBON AS
    Inventor: Simon Woodhouse
  • Patent number: 7645433
    Abstract: A system for optimizing start-up of an amine regeneration system comprising a rich/lean heat exchanger, a still, a reflux condenser, a reflux accumulator, a pump, a reboiler, and a reflux accumulator fill line assembly.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: January 12, 2010
    Assignee: Newpoint Gas Services, Inc.
    Inventors: Roy Wade Rhodes, Quenten Zane Rhodes, II