Means To Add Conditioning Agent To Contact Liquid Patents (Class 96/235)
  • Patent number: 10245546
    Abstract: A method and system for reduction of particulate and gaseous contaminants from exhaust gas including multiple gas handling systems, a mixing tank, and a mixing system that mixes unprocessed exhaust gas and system fluid, while agitating the system fluid.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: April 2, 2019
    Assignee: H & H INVENTIONS & ENTERPRISES, INC.
    Inventors: Steven Heskett, William O. Hunter, Vladimir Zhirov
  • Patent number: 9731244
    Abstract: The present invention provides a carbon dioxide recovery apparatus capable of recovering heat energy of carbon-dioxide-containing gas which includes an absorbing tower to generate and discharge a rich liquid absorbing carbon dioxide as carbon-dioxide-containing gas is introduced and contacted to an absorbing liquid to absorb carbon dioxide, carbon dioxide release devices to discharge semi-lean liquids which have steam containing a part of carbon dioxide released by heating the rich liquid discharged from the absorbing tower, and a regeneration tower to generate a lean liquid which has steam containing remaining carbon dioxide released and separated by heating the semi-lean liquids discharged from the carbon dioxide release devices and to return the lean liquid to the absorbing tower.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: August 15, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Ogawa, Yukio Ohashi, Hideo Kitamura
  • Patent number: 9623365
    Abstract: An absorbent regenerator includes: a rich solution supply line; a lean solution supply line; a lean-rich solution heat exchanger that is provided at an intersection of the lean solution supply line and the rich solution supply line; a branch portion that branches some of the rich solution at a downstream side of the lean-rich solution heat exchanger on the rich solution supply line; and a first mixing portion that mixes the some of the rich solution branched at the branch portion with a semi-lean solution, wherein a front end of a branch line through which the some of the branched rich solution is supplied is connected to a solution storage portion of the semi-lean solution which is located at an upper stage side of the absorbent regenerator divided into parts, and the some of the branched rich solution is mixed with the semi-lean solution.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: April 18, 2017
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Hiroshi Tanaka, Takuya Hirata, Tsuyoshi Oishi, Takahiko Endo, Hiroaki Ito
  • Patent number: 9155991
    Abstract: The present invention provides a carbon dioxide recovery apparatus capable of recovering heat energy of carbon-dioxide-containing gas which includes an absorbing tower to generate and discharge a rich liquid absorbing carbon dioxide as carbon-dioxide-containing gas is introduced and contacted to an absorbing liquid to absorb carbon dioxide, carbon dioxide release devices to discharge semi-lean liquids which have steam containing a part of carbon dioxide released by heating the rich liquid discharged from the absorbing tower, and a regeneration tower to generate a lean liquid which has steam containing remaining carbon dioxide released and separated by heating the semi-lean liquids discharged from the carbon dioxide release devices and to return the lean liquid to the absorbing tower.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: October 13, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Ogawa, Yukio Ohashi, Hideo Kitamura
  • Patent number: 8840713
    Abstract: The invention relates to a scrubber unit arrangement for cleaning exhaust gas. The arrangement comprises a scrubber unit for receiving a flow of exhaust gas, a pump means for supplying a scrubbing medium to the scrubber unit from a source of scrubbing medium, and means for discharging scrubbing medium from the scrubber unit. In order to provide an energy efficient scrubbing process, the scrubber unit arrangement further comprises a turbine unit, which is arranged to receive discharged scrubbing medium from the scrubber unit. Scrubbed exhaust gas is separately discharged from the scrubber unit.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: September 23, 2014
    Assignee: Wartsila Finland Oy
    Inventor: Ari Suominen
  • Publication number: 20140275693
    Abstract: An auxiliary sour gas treatment system for treating a stream of sour gas during a time wherein a primary gas treatment facility is unavailable, malfunctioning, inadequate or inoperable. The auxiliary sour gas treatment system comprises a lean solvent storage system to store an appreciable volume of a regenerable lean solvent available on demand. A scrubber to treat an influent supply of the sour gas by contacting the sour gas and the lean solvent which chemically or physically binds the contaminants in the sour gas resulting in a cleaned gas suitable for disposal or use as a fuel, and the solvent in an enriched state that contains the removed contaminants. The enriched solvent resulting from treatment may be stored indefinitely in a rich solvent storage system and then regenerated at any convenient time and at any convenient rate or place to remove the contaminants from the rich solvent.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventor: Donald Lawrence Zink
  • Publication number: 20140245892
    Abstract: The invention relates to a system for trapping atmospheric emissions, made up of a liquefaction tank which contains a liquid that traps the dust, smokes or gas, which are injected into the same through a main duct, to which the source of the emission to be trapped is connected, said duct including a first fan which operates by absorbing and propelling the dust, smoke and gas, guiding same into the liquefaction tank, said duct being sealed at the end of thereof, the side walls of the duct comprising at least ten outlet openings, the invention also comprising a system with at least two walls with the same effect and perforations, this causing the liquefaction of the trapped material, likewise, the invention comprises a cooling system, which guides the liquid from the tank into a serpent coil and from there to a pump which generates the recirculation of the liquid; at the top of the tank, the invention comprises an outlet duct via which the gases produced by liquefaction are guided into a compressor, which has t
    Type: Application
    Filed: October 2, 2012
    Publication date: September 4, 2014
    Inventor: Ciro Alfredo Hernandez Olvera
  • Patent number: 8808433
    Abstract: A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 19, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Roger D. Aines, William L. Bourcier
  • Patent number: 8741033
    Abstract: An air pollution control apparatus 1 includes: an absorber 2 that serves as a passage for flue gas; an absorbent spraying unit 5 that sprays an absorbent into the absorber 2; and a reservoir tank 3 that reserves therein the absorbent. The air pollution control apparatus 1 brings the flue gas into gas-liquid contact with the absorbent to process the flue gas, while sending the flue gas in the absorber 2. The air pollution control apparatus 1 also collects and reserves therein the absorbent after processing the flue gas in the reservoir tank 3. The air pollution control apparatus 1 also includes a defoaming agent diffusing unit 6 that diffuses a defoaming agent over foams of the absorbent in the reservoir tank 3.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 3, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Seiji Kagawa, Yoshito Tanaka, Jun Hashimoto, Hiroshi Kawane
  • Patent number: 8657925
    Abstract: A method of scrubbing flue gas includes introducing flue gas comprising an acidic gas through an inlet into a tower; spraying an acid-absorptive fluid into the tower such that the acid-absorptive fluid contacts the flue gas; accumulating the acid-absorptive fluid in a recycle tank portion of the tower; and introducing an oxygen-containing gas into the acid-absorptive fluid in the recycle tank portion of the tower, wherein the oxygen-containing gas is introduced through at least one opening of an aerator, each of the at least one openings are positioned to release the oxygen-containing gas at least at a distance greater than or equal to a predetermined radial distance from the flue gas inlet, the predetermined radial distance being equal to at least 10% of a diameter of the recycle tank portion of the tower.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 25, 2014
    Assignee: ALSTOM Technology Ltd
    Inventor: Dennis James Laslo
  • Publication number: 20140047975
    Abstract: A gasification system includes a water source, a downstream system configured to receive a first stream having water from the water source, and a carbon a carbon dioxide injector configured to adjust a pH of the water using a second stream having carbon dioxide to form pH-adjusted water.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 20, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Anindra Mazumdar, James Scott Kain
  • Publication number: 20130306556
    Abstract: A gas cleaning system including a wet scrubber (14) for removal of sulphur dioxide from a gas and an oxidation basin system (42) for receiving effluent generated in the removal of sulphur dioxide from the process gas. The oxidation basin system (42) comprises an oxidation basin (43) for containing the effluent during treatment thereof, an oxygen supply system (47) for supplying oxygen to the effluent in the oxidation basin (43), and a contacting system for bringing the effluent into contact with an enzyme which catalyses the oxidation of bisulphite and/or sulphite ions.
    Type: Application
    Filed: February 2, 2012
    Publication date: November 21, 2013
    Applicant: ALSTOM TECHNOLOGY, LTD
    Inventors: Fredrik Jens Brogaard, Mikael Larsson
  • Publication number: 20130310621
    Abstract: A method for reducing one or more additives in a gaseous hydrocarbon stream (40) such as natural gas, comprising the steps of: (a) admixing an initial hydrocarbon feed stream (10) with one or more additives (20) to provide a multiphase hydrocarbon stream (30); (b) passing the multiphase hydrocarbon stream (30) from a first location (A) to a second location (B2); (c) at the second location (B2), passing the multiphase hydrocarbon stream (30) through a separator (22) to provide one or more liquid streams (50) comprising the majority of the one or more additives, and a gaseous hydrocarbon stream (40) comprising the remainder of the one or more additives; and (d) washing the gaseous hydrocarbon stream (40) in a decontamination unit (24) with a washing stream (60), wherein the washing stream (60) comprises distilled water, to provide an additive-enriched stream (70) and an additive-reduced hydrocarbon stream (80).
    Type: Application
    Filed: April 22, 2013
    Publication date: November 21, 2013
    Inventor: Shell Oil Company
  • Publication number: 20130186272
    Abstract: A method for capturing ammonia present in combustion flue gas subjected to carbon dioxide removal, using a water wash unit (102) included in a chilled ammonia process, comprises: providing CO2 loaded liquid (122) comprising CO2 dissolved in the liquid; providing wash water liquid (108, 138); combining the CO2 loaded liquid with the wash water liquid to form CO2 enriched wash water liquid (105, 106) before the liquid is added said water wash unit (102); and bringing said combustion flue gas into contact with said CO2 enriched wash water liquid by adding the CO2 enriched wash water liquid to said water wash unit (102).
    Type: Application
    Filed: January 25, 2012
    Publication date: July 25, 2013
    Inventors: Michael C. Balfe, Rameshwar S. Hiwale, Joseph P. Naumovitz
  • Publication number: 20130152782
    Abstract: An object of the present invention is to provide a method for treating an exhaust gas containing CO2, that can adjust the concentration of an oxidation inhibitor in an absorbent to the concentration enough to inhibit oxidation, without measuring the concentration of the oxidation inhibitor in an alkanolamine contained in a CO2 absorbent. Disclosed are a method and a device for adjusting the compositional ratio of an absorbent, in which absorption and release of carbon dioxide are performed by adding an oxidation inhibitor to an alkanolamine absorbent when the sum of the concentrations of ammonia and an alkylamine in an absorber column outlet gas of a CO2 absorption equipment.
    Type: Application
    Filed: August 29, 2011
    Publication date: June 20, 2013
    Applicant: BABCOCK-HITACHI KABUSHIKI KAISHA
    Inventors: Koichi Yokoyama, Shigehito Takamoto, Eiji Miyamoto, Naoki Oda
  • Publication number: 20130139695
    Abstract: The present invention provides a system for capturing CO2 and/or SO2, comprising: (a) a CO2 and/or SO2 absorber comprising an amine and/or amino acid salt capable of absorbing the CO2 and/or SO2 to produce a CO2- and/or SO2-containing solution; (b) an amine regenerator to regenerate the amine and/or amino acid salt; and, when the system captures CO2, (c) an alkali metal carbonate regenerator comprising an ammonium catalyst capable catalyzing the aqueous alkali metal bicarbonate into the alkali metal carbonate and CO2 gas. The present invention also provides for a system for capturing SO2, comprising: (a) a SO2 absorber comprising aqueous alkali metal carbonate, wherein the alkali metal carbonate is capable of absorbing the SO2 to produce an alkali metal sulfite/sulfate precipitate and CO2.
    Type: Application
    Filed: February 1, 2013
    Publication date: June 6, 2013
    Applicant: The Regents of The University of California
    Inventors: Shih-Ger Chang, Yang Li, Xinglei Zhao
  • Patent number: 8440006
    Abstract: An apparatus 100 for scrubbing flue gas 122, the apparatus 100 including a tower 140 having an inlet 120 receiving a flow of flue gas 122 and a recycle tank portion 142; a fluid 162 disposed in the recycle tank portion 142; and an aerator 150 having at least one opening 152 for introduction of an oxygen-containing gas 154 into the fluid 162, wherein the at least one opening 152 is positioned to release the oxygen-containing gas 154 at least at a distance greater than or equal to a predetermined radial distance F from the inlet 120, the predetermined radial distance F being equal to at least 10% of a diameter of the recycle tank portion 142.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: May 14, 2013
    Assignee: ALSTOM Technology Ltd
    Inventor: Dennis J. Laslo
  • Publication number: 20130098244
    Abstract: SOx removal equipment 15 which reduces sulfur oxides from flue gas 12 from a boiler 11, a cooler 16 which is provided on the downstream side of the SOx removal equipment 15 so as to reduce the sulfur oxides from the flue gas and decrease a gas temperature, CO2 recovery equipment 17 which includes an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and ammonia injection equipment 22 for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.
    Type: Application
    Filed: May 31, 2011
    Publication date: April 25, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Tatsuto Nagayasu, Takashi Kamijo, Masayuki Inui, Tsuyoshi Oishi, Hiromitsu Nagayasu, Hiroshi Tanaka, Takuya Hirata, Tatsuya Tsujiuchi, Susumu Okino, Naoyuki Kamiyama, Seiji Yoshihara
  • Patent number: 8409512
    Abstract: Methods and apparatuses are described for contacting an oxidizing solution such as an aqueous hydrogen peroxide composition of hydrogen peroxide and at least one additive that catalyzes the decomposition of the hydrogen peroxide into hydroxyl radicals with an atmospheric effluent containing odorous and/or noxious components. These components are absorbed by the aqueous hydrogen peroxide composition to produce an atmospheric effluent having reduced amounts of the odorous and/or noxious components. Various methods are described for adding the hydrogen peroxide and the decomposition additive.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 2, 2013
    Assignee: Steen Research, LLC
    Inventors: Stephen R. Temple, Michael J. Stoltz
  • Publication number: 20130064745
    Abstract: Combining flue gas treatment, and in particular CO2 sequestration, with hardening of reverse osmosis (RO) permeate. Flue gas is compressed and injected into pressurized water, being either cooling water or RO permeate. The water with dissolved CO2 is either dispensed into the sea for biological fixation of the CO2 or, in the case of RO permeate, mixed with limestone to harden the product water.
    Type: Application
    Filed: June 2, 2011
    Publication date: March 14, 2013
    Applicant: I.D.E. TECHNOLOGIES LTD.
    Inventor: Boris Liberman
  • Patent number: 8353980
    Abstract: An apparatus and process for removing acidic gases from flue gases produced by, for example, utility and industrial facilities. The acidic gases are removed as the flue gas flows upward through a contact zone within a passage, where the flue gas is contacted with an ammonium sulfate-containing scrubbing solution to absorb the acidic gases from the flue gas. The scrubbing solution and absorbed acidic gases therein are then accumulated, and ammonia and an oxygen-containing gas are injected into the accumulated scrubbing solution to react the absorbed acidic gases and produce ammonium sulfate. An acid solution is flowed across the passage above the contact zone of the passage, and the scrubbed flue gas is flowed upward through the acid solution to remove unreacted ammonia from the scrubbed flue gas. The acid solution is then removed from the passage after the acid solution has been contacted by the scrubbed flue gas.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 15, 2013
    Assignee: Marsulex Environmental Technologies Corporation
    Inventor: David William Murphy
  • Patent number: 8328911
    Abstract: A method for removing and capturing carbon dioxide from a fluid stream includes the steps of exposing the fluid stream to an aqueous scrubbing solution that removes and holds carbon dioxide from the fluid stream, passing the aqueous scrubbing solution through a membrane in order to separate excess water from the scrubbing solution and increase the concentration of carbon dioxide in the scrubbing solution, heating the scrubbing solution having an increased concentration of carbon dioxide so as to release carbon dioxide gas and recycling the scrubbing solution. A carbon dioxide capture apparatus includes a carbon dioxide scrubber, a membrane downstream from the scrubber for separating water and concentrating carbon dioxide in a scrubbing solution and a stripper vessel.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: December 11, 2012
    Assignee: The University of Kentucky Research Foundation
    Inventors: Kunlei Liu, James K. Neathery, Joseph E. Remias, Xiansen Li
  • Patent number: 8298321
    Abstract: A river water utilizing flue gas desulfurization system 10 according to an embodiment of the present invention includes: a pre-treatment facility 13 that removes humic substances in river water 11 to produce makeup water 12; and a desulfurization apparatus 17 that brings sulfur content in flue gas 15 into contact with limestone gypsum slurry 16 in an apparatus body 14. The pre-treatment facility 13 includes a flocculant mixing basin 22 in which a flocculant 21 is added to the river water 11 to flocculate and remove the humic substances contained in the river water 11; and an activated carbon absorption unit 23 in which the humic substances contained in the river water 11 are absorbed and removed by way of activated carbon.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: October 30, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuyuki Ukai, Takashi Yoshimoto, Tatsuto Nagayasu, Susumu Okino
  • Publication number: 20120260800
    Abstract: The invention relates to a scrubber unit arrangement for cleaning exhaust gas. The arrangement comprises a scrubber unit for receiving a flow of exhaust gas, a pump means for supplying a scrubbing medium to the scrubber unit from a source of scrubbing medium, and means for discharging scrubbing medium from the scrubber unit. In order to provide an energy efficient scrubbing process, the scrubber unit arrangement further comprises a turbine unit, which is arranged to receive discharged scrubbing medium from the scrubber unit. Scrubbed exhaust gas is separately discharged from the scrubber unit.
    Type: Application
    Filed: November 5, 2010
    Publication date: October 18, 2012
    Applicant: WARTSILA FINLAND OY
    Inventor: Ari Suominen
  • Publication number: 20120186454
    Abstract: An aeration apparatus that is immersed in diluted used seawater (not shown), which is water to be treated, and generates fine air bubbles in the diluted used seawater. This aeration apparatus includes: an air supply line L5 that supplies air 122 through blowers 121A to 121D (in an embodiment of the preset invention, four blowers) serving as discharge units; a pressure gauge 125 installed in the air supply line L5; and aeration nozzles 123 each including a diffuser membrane 11 having slits for supplying the air, so that when air supply pressure exceeds a predetermined threshold value based on a result of measurement by the pressure gauge 125, fresh water 141 or water vapor is temporarily supplied to an air supply pipe.
    Type: Application
    Filed: August 26, 2011
    Publication date: July 26, 2012
    Inventors: Keisuke SONODA, Shozo Nagao
  • Publication number: 20120085239
    Abstract: An aeration apparatus is immersed in water to be treated and generates fine air bubbles in the water to be treated. The aeration apparatus includes: an air supply pipe for supplying air through discharge unit; aeration nozzles 123 including an introduction portion for introducing air 122 supplied from an opening 15a of a header 15 in communication with the air supply pipe, and a support body extending from the introduction portion and covered with a diffuser membrane having slits for discharging the air 122 to the outside; water introducing unit for introducing water into the header through the air supply pipe; and an atomizing unit 25 for atomizing the introduced water 141 with the aid of the air 122 supplied from the opening 15a of the header. Water mist 141a atomized by the atomizing unit 25 passes through the slit and is discharged to the outside together with the air 122.
    Type: Application
    Filed: January 31, 2011
    Publication date: April 12, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keisuke Sonoda, Shozo Nagao
  • Patent number: 8137444
    Abstract: Systems and methods for lowering levels of carbon dioxide and other atmospheric pollutants are provided. Economically viable systems and processes capable of removing vast quantities of carbon dioxide and other atmospheric pollutants from gaseous waste streams and sequestering them in storage-stable forms are also discussed.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: March 20, 2012
    Assignee: Calera Corporation
    Inventors: Kasra Farsad, Robert W. Elliott, Richard P. O'Connor, William Randall Seeker, Kyle Self, Justin Wall
  • Publication number: 20120055335
    Abstract: A drain liquid relief system for a subsea compressor is provided. The system includes a suction scrubber a drain storage tank for collecting drain liquid contaminating the compressor flow in the drain storage tank. The system further includes an intermittently pressurizing device and a suction line connected to the bottom of the drain storage tank. The suction scrubber is connected to the compressor suction nozzle and/or a compressor casing drain line, the suction scrubber being further connected, via a first check valve, to the drain storage tank for collecting the drain liquid in the drain storage tank. The intermittently pressurizing device is adapted to intermittently pressurize the drain storage tank to intermittently blow the drain liquid out of the drain storage tank through the suction line.
    Type: Application
    Filed: February 25, 2010
    Publication date: March 8, 2012
    Inventors: Gesinus Mateman, Wolfgang Zacharias
  • Publication number: 20120042784
    Abstract: In an aeration apparatus according to the present invention, water-repellent treatment is applied at least to one of an opening and vicinity thereof of a slit 12 formed in a diffuser membrane of an aeration nozzle, thereby providing a water-repellent layer 150, so that the inflow of seawater into the slit 12 is prevented and precipitation of calcium sulfate or the like in the slit is suppressed and avoided. As a material for forming the water-repellent layer 150, for example, a talc coating layer using talc, a fluorine coating layer coated with a fluorine resin, silicone coating layer coated with a silicone resin, and a wax coating layer coated with wax can be mentioned.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 23, 2012
    Inventors: Keisuke SONODA, Shozo Nagao, Koji Imasaka, Seiji Furukawa, Yoshihiko Tsuchiyama
  • Publication number: 20120042783
    Abstract: An aeration apparatus is immersed in diluted used seawater (not shown) which is water to be treated and generates fine air bubbles in the diluted used seawater. The aeration apparatus includes: an air supply line L5 for supplying air 122 through blowers 121A to 121D serving as discharge unit; aeration nozzles 123, each of which includes a diffuser membrane 11 having slits and to which air containing moisture is supplied; and a control unit for performing control to temporarily stop supply of the air 122 at predetermined intervals.
    Type: Application
    Filed: June 3, 2011
    Publication date: February 23, 2012
    Inventors: Keisuke SONODA, Shozo Nagao, Koji Imasaka, Seiji Furukawa, Yoshihiko Tsuchiyama
  • Patent number: 8021542
    Abstract: A water recovery method and apparatus which uses a desiccant, such as lithium chloride, to recover water vapor from the engine exhaust of a vehicle. The apparatus uses liquid-contactor to transfer water vapor from the vehicle exhaust to the liquid desiccant. The desiccant is then transferred to a reverse osmosis system which separates the liquid desiccant into potable water and a concentrated desiccant.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: September 20, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard Eugene Kirts
  • Publication number: 20110048239
    Abstract: A method and system for reducing an amount of ammonia in a flue gas stream. The system 100 includes: a wash vessel 180 for receiving an ammonia-containing flue gas stream 170, the wash vessel 180 including a first absorption stage 181a and a second absorption stage 181b, each of the first absorption stage 181a and the second absorption stage 181b having a mass transfer device 184; and a liquid 187 introduced to the wash vessel 180, the liquid 187 for absorbing ammonia from the ammonia-containing flue gas stream 170 thereby forming an ammonia-rich liquid 192 and a reduced ammonia containing flue gas stream 190 exiting the wash vessel 180.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: ALSTOM Technology Ltd.
    Inventors: Eli Gal, Indira Jayaweera
  • Publication number: 20100322842
    Abstract: A CO2 recovering apparatus includes a CO2 absorber that brings flue gas containing CO2 into contact with CO2 absorbent to reduce the CO2 contained in the flue gas; and a regenerator that reduces CO2 contained in rich solvent absorbing CO2 to regenerate the rich solvent, so that lean solvent that is the CO2 absorbent having the CO2 reduced in the regenerator is reused in the CO2 absorber. The CO2 recovering apparatus further includes a controller that detects a difference between a gas temperature (T1) of the flue gas guided into an entrance of the CO2 absorber and a gas temperature (T2) of the gas exiting the CO2 absorber, and an absorbent concentration (X (Vol %)) of the CO2 absorbent; and controls to adjust an amount of water contained in the gas depending on the gas temperature difference between the gas entering and the gas exiting the CO2 absorber and to keep an absorbent concentration of the CO2 absorbent within a set range (e.g., X0±10% in a relative ratio).
    Type: Application
    Filed: December 8, 2009
    Publication date: December 23, 2010
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Masaki Iijima, Hiroshi Tanaka, Yoshiki Sorimachi, Kouki Ogura, Masahiko Tatsumi, Yasuyuki Yagi
  • Patent number: 7828883
    Abstract: A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 9, 2010
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Roger D. Aines, William L. Bourcier
  • Publication number: 20100272618
    Abstract: Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.
    Type: Application
    Filed: August 25, 2009
    Publication date: October 28, 2010
    Inventors: Willem Johan Beekman, Peter Boons, Wiebren Age Miedema, Dominicus Maria Rekers
  • Patent number: 7819950
    Abstract: A subsea compression system and method wherein a wellstream fluid is flowed through a flow line (12) from a reservoir (10) and into a separation vessel (16) for subsequent compression in a compressor (18; 18?, 18?) prior to export of gas. A recycle line (24; 24?, 24?) is fluidly connected at a first end to the compressed wellstream at the outlet side of the compressor (18; 18?, 18?) and at a second end to the wellstream at a location between the separation vessel (16) and the inlet side of the compressor (18; 18?, 18?), the recycle line being capable of controllably (32) feeding fluid due to surge back to the compressor inlet side and avoiding the need to feed the fluid into the separation vessel, because the re-circulated gas is dry both due to having been separated at seawater temperature, and then being heated during recirculation.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: October 26, 2010
    Assignee: Kvaerner Oilfield Products A.S.
    Inventors: Kjell Olav Stinessen, Håkon Skofteland
  • Publication number: 20100229720
    Abstract: Systems, methods, and apparatus for capturing CO2 using a solvent are provided. A gas that includes carbon dioxide may be mixed with a solvent that is operable to absorb at least a portion of the carbon dioxide from the gas. The solvent containing the carbon dioxide may be provided to at least one removal system operable to remove at least a portion of the liquid contained in the solvent. The solvent output by the removal system may be stripped to extract at least a portion of the carbon dioxide from the solvent.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 16, 2010
    Applicant: General Electric Company
    Inventors: Chandrashekhar Ganpatrao Sonwane, Samuel David Draper
  • Publication number: 20100224072
    Abstract: A system for purification of air in an inner space has a housing having air inlet unit and air outlet units; air filtering means located in the housing between the air inlet unit and the air outlet units; and vertical attachment attached to the air outlet units and extending vertically upwardly so that air enters the housing at a lower level through the air inlet units and leaves the system at an outlet of the attachment at a level substantially higher than the level of the inlet units.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 9, 2010
    Inventor: Gennady N. Ulanov
  • Publication number: 20100224062
    Abstract: The system uses seawater to remove sulfur dioxide from shipboard diesel exhaust gases. Structurally, the system includes a single-stage countercurrent scrubber with top and bottom ends. During operation, diesel exhaust gases are introduced into the bottom end of the scrubber and flow to the top end of the scrubber. Further, seawater is fed into the top end of the scrubber and falls to the bottom end while absorbing sulfur dioxide from the diesel exhaust gases. Thereafter, the exhaust gases exit the scrubber, substantially free of sulfur dioxide. Further, the extremely acidic effluent seawater exits the scrubber and is treated with caustic. As a result, the caustic neutralizes the seawater. Also, dissolved carbon dioxide may be removed from the effluent seawater to reduce the amount of caustic required for neutralization. In addition, an oxidizer may be used to reduce the chemical oxygen demand of the effluent seawater.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 9, 2010
    Inventors: Ronald Patterson, Andrew J. Olds
  • Publication number: 20100224070
    Abstract: The vessel apparatus processes exhaust gases and effluent seawater on a ship. Structurally, the vessel apparatus includes a vertically oriented vessel. Further, a scrubber is positioned within the vessel to remove pollutants from the exhaust gases with seawater. Also, an effluent seawater processing component is positioned in the vessel above the scrubber. Between the processing component and the scrubber is a liquid barrier that prevents effluent seawater from entering the top of the scrubber while allowing exhaust gases to pass from the scrubber to the top of the vessel. For operation of the apparatus, effluent seawater resulting from the scrubbing process is recirculated from below the scrubber to a location in the vessel above the processing component. As a result, the effluent seawater may be processed above the scrubber.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 9, 2010
    Inventors: Ronald G. Patterson, Andrew J. Olds
  • Publication number: 20100218674
    Abstract: A CO2 recovery apparatus according to a first embodiment of the present invention includes: a CO2 absorber that brings flue gas containing CO2 into contact with CO2 absorbing liquid to reduce CO2 in the flue gas; a regenerator that reduces CO2 in CO2 absorbing liquid (rich solvent) that has absorbed the CO2 in the CO2 absorber to regenerate the CO2 absorbing liquid, so that the regenerated absorbing liquid (lean solvent), having CO2 reduced in the regenerator, is reused in the CO2 absorber; a first compressor to a fourth compressor that compress the CO2 gas released from the regenerator; and an O2 reducing apparatus arranged between the second compressor and a second cooler to reduce O2 in the CO2 gas.
    Type: Application
    Filed: October 27, 2009
    Publication date: September 2, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keiji Fujikawa, Takuya Hirata, Tatsuya Tsujiuchi, Tsuyoshi Oishi
  • Publication number: 20100212497
    Abstract: The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants) and, in particular to a new and useful method and apparatus designed to improve the water supplied to non-calcium-based, aqueous wet SOx scrubbers. In another embodiment, the present invention relates to a system and method for softening water for use in non-calcium-based, aqueous wet SOx scrubbers.
    Type: Application
    Filed: January 19, 2010
    Publication date: August 26, 2010
    Inventors: William Downs, Paul J. Williams
  • Publication number: 20100206171
    Abstract: This invention involves ship flue gas desulphurization method and system. It employs seawater to reduce SO2 and other pollutant discharged by ship. The method includes seawater scrub, acidic seawater transfer, deacidification, and discharge processes. The system includes a scrubber and a water-saving deacidification device. Upper portion of the scrubber comprises a scrubbing section which is connected with scrubbing seawater pump by pipelines. Lower portion of the scrubber comprises a cooling section. One end of the scrubber links the ship engine smoke pipe by a scrubbing inlet pipe, and the other end links the scrubber to a scrubbing outlet pipe. The water-saving deacidification device lies below the scrubber and is connected with it. The water-saving deacidification device is coupled to a blending seawater pump, fan, and total drain pipe for discharging seawater after deacidification. This invention provides high desulphurization efficiency, and requires small seawater quantity.
    Type: Application
    Filed: June 13, 2008
    Publication date: August 19, 2010
    Inventor: Sigan Peng
  • Patent number: 7758679
    Abstract: A treating unit that comprises an absorber unit for contacting a regenerated solvent with a gas stream loaded with contaminants to yield a treated gas stream and a loaded solvent stream; a regenerator unit for stripping the loaded solvent stream to yield a loaded gas stream and the regenerated solvent; and a device for smoothing contaminant peak concentrations in the loaded solvent stream and for receiving the loaded solvent stream. The device comprises a first hold-up tank having a first inlet and a first outlet, a second hold-up tank having a second inlet and a second outlet, and an inlet distributor that is operatively connected to the first inlet and to the second inlet and that provides for directing flow of the loaded solvent stream to either the first hold-up tank or the second hold-up tank.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: July 20, 2010
    Assignee: Shell Oil Company
    Inventors: Anders Carlsson, Gijsbert Jan Van Heeringen, Thijme Last
  • Patent number: 7736419
    Abstract: A process for purifying polluted air includes passing the polluted air through a fluidized bed of micro-organism-containing particulate media. As the polluted air passes through the fluidized bed, organic pollutants therein are decomposed by the micro-organisms. Purified air containing a lower level of the organic pollutants than the polluted air that enters the fluidized bed, emerges from the fluidized bed.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: June 15, 2010
    Assignee: BBR Biofiltrations (Proprietary) Limited
    Inventor: Erasmus Van Niekerk
  • Publication number: 20100139488
    Abstract: An apparatus and process for removing acidic gases from flue gases produced by, for example, utility and industrial facilities. The acidic gases are removed as the flue gas flows upward through a contact zone within a passage, where the flue gas is contacted with an ammonium sulfate-containing scrubbing solution to absorb the acidic gases from the flue gas. The scrubbing solution and absorbed acidic gases therein are then accumulated, and ammonia and an oxygen-containing gas are injected into the accumulated scrubbing solution to react the absorbed acidic gases and produce ammonium sulfate. An acid solution is flowed across the passage above the contact zone of the passage, and the scrubbed flue gas is flowed upward through the acid solution to remove unreacted ammonia from the scrubbed flue gas. The acid solution is then removed from the passage after the acid solution has been contacted by the scrubbed flue gas.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 10, 2010
    Applicant: MARSULEX ENVIRONMENTAL TECHNOLOGIES CORPORATION
    Inventor: David William Murphy
  • Publication number: 20100024654
    Abstract: A trap device comprises means for separating a liquid compound from a waste stream exhaust from a process chamber, means for collecting the liquid compound separated from the waste stream, means for selectively isolating the collected liquid compound from the waste stream, and means for evaporating the collected liquid compound to return the compound in gaseous form to the waste stream. This can enable a volatile liquid to be collected at a defined location, isolated from the waste stream, and, when so desired, returned to the waste stream in the form of a gas for subsequent abatement.
    Type: Application
    Filed: March 9, 2006
    Publication date: February 4, 2010
    Inventors: Christopher John Shaw, Graeme Huntley, Andrew James Seeley
  • Publication number: 20090199712
    Abstract: A method and a device for the absorption of pressurised natural gas containing at least hydrogen sulphide and carbon dioxide, using a physically active absorption agent. The natural gas containing acid gas is first conveyed to an absorption column, where it is directly contacted with the physical detergent, and the physical detergent absorbs the acid gas, leaving only a residue. The charged detergent is conveyed to a stripping column, the working pressure being further reduced. The residue of the released acid gas from the detergent is desorbed in said stripping column. The detergent thus regenerated is returned, at least in part, to the absorption column. The acid gas leaving the first separator is conveyed to another absorption column, in which the part of the released acid gas containing predominately hydrogen sulphide is reabsorbed with regenerated detergent and mixed with the charged detergent from the first separator.
    Type: Application
    Filed: May 23, 2006
    Publication date: August 13, 2009
    Inventors: Johannes Menzel, Martin Cosfeld
  • Publication number: 20090183632
    Abstract: A scrubber removes matter (e.g., particulate, gaseous, or liquid) from a gas stream in order to recover the matter and/or to clean the gas. In particular aspects, the scrubber contains multiple venturis that may provide additional flexibility and increased efficiency. The invention also pertains to related methods.
    Type: Application
    Filed: December 16, 2008
    Publication date: July 23, 2009
    Applicant: ANDRITZ INC.
    Inventors: Kimmo Peltonen, Todd S. Grace
  • Patent number: 7531144
    Abstract: This invention relates to a method for desalination of seawater (5, 30) and separation of CO2 from exhaust (77) from a gas turbine (7). LNG (4) is fed into a heat exchanger (6) in which it receives heat from seawater (5) and heat from steam (27) from an exhaust boiler, and heat from combustion air (3) via a line to an air inlet (33) of said gas turbine (7), for evaporating LNG (4) to gas which is fed to a gas export module (10) and to a fuel gas skid (8) for supplying said gas turbine (7) with fuel. Thus said combustion air (3, 28) at the air inlet to said gas turbine (7) obtains a lowered temperature and increases an efficiency of said gas turbine (7). Said CO2-rich exhaust gas (77) from said gas turbine (7) is fed into a process unit (17) having an inlet (35a) with a fan (35b) and an outlet for CO2-reduced exhaust (13). Said cooled seawater from said heat exchanger (6) is fed into said process unit (17) via a coaxial feed pipe (67) for seawater and NH4OH arranged in said process unit (17).
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: May 12, 2009
    Assignee: Sargas AS
    Inventor: Knut Erik Borseth