With Cooling Patents (Class 95/228)
  • Patent number: 8961657
    Abstract: In a method for cooling liquid, when a liquid containing a volatile component and a surfactant is supplied to an atmosphere having a pressure which is lower than or equal to the saturated vapor pressure of the volatile component so that at least a portion of the volatile component is vaporized, whereby the liquid is cooled, a gas other than the volatile component is introduced into the atmosphere having the pressure so that the gas contacts the liquid.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: February 24, 2015
    Assignee: Kao Corporation
    Inventors: Toku Fujioka, Wataru Yamauchi
  • Patent number: 8961665
    Abstract: There is provided an exhaust gas treatment system including a CO2 recovery unit with further enhanced energy efficiency. The exhaust gas treatment system (1) includes: a CO2 recovery unit (10) including a CO2 absorption column (11), an absorbing solution regeneration column (16), a condensate supply pipeline (15) for supplying condensate, which contains CO2 absorbing solution discharged from the CO2 absorption column (11) to a bottom portion of the absorbing solution regeneration column (16), and a CO2 separation section (22) for performing heat exchange, via a heat exchanger (23), between the CO2 discharged from the absorbing solution regeneration column (16) and the condensate; and an exhaust gas heat exchanger (5) provided on a gas upstream side of the CO2 recovery unit (10) for performing heat exchange between exhaust gas before flowing into the CO2 recovery unit (10) and the condensate.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: February 24, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsuya Tsujiuchi, Shintaro Honjo, Takahito Yonekawa, Satoru Sugita, Motofumi Ito, Takashi Kamijo, Tatsuto Nagayasu, Takuya Okamoto
  • Patent number: 8945286
    Abstract: The invention relates to a device and method for treating a hot gas flow containing slag and to an entrained-bed gasifier system that comprises the device. The device comprises, in a housing, an inlet arranged at the top for the hot gas flow, an immersion pipe, which is arranged vertically and concentrically in the housing and into which the inlet opens, a coolant bath, into which a lower section of the immersion pipe is immersed, and at least one raw gas outlet opening for cooled raw gas that has been freed of slag. The lower section of the immersion pipe is designed as a radially expanded gas distributor bell in the coolant bath. Said gas distributor bell is formed by a substantially conical jacket surface having a cross-section that expands downward, wherein the jacket surface has a plurality of gas passage openings, which are distributed over the circumference of the gas distributor bell. The dimensions of the gas passage openings increase with the immersion depth in the coolant bath.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: February 3, 2015
    Assignee: CCG Energy Technology Company Ltd.
    Inventors: Olaf Schulze, Dietmar Rüger, Anton Althapp, Michael Gätke, Burkhard Möller, Ralf Grunwald, Michael Grunwald, Monika Grunwald
  • Patent number: 8906141
    Abstract: An apparatus for separating and recovering CO2 from a CO2 absorbent, includes: a regeneration tower for regenerating the absorbent that has absorbed CO2 by heating it to separate and remove CO2 therefrom and to exhaust CO2 gas; a compressor for compressing the CO2 gas exhausted from the tower; and a heat exchanger for heating the absorbent in the tower by exchanging heat with a part of the compressed CO2 by the compressor which is introduced into the tower. The apparatus may include a plurality of the compressors and a plurality of the heat exchangers. The plurality of compressors is arranged in series to sequentially compress the CO2 gas exhausted from the tower. The plurality of heat exchangers is configured so that each part of the CO2 compressed by the plurality of compressors is introduced to the tower in parallel to exchange heat with the absorbent in the tower.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: December 9, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsuya Tsujiuchi, Shintaro Honjo, Takahito Yonekawa, Satoru Sugita
  • Patent number: 8906149
    Abstract: The present application relates to a system for removal of gaseous contaminants from a gas stream. The system includes an absorber for contacting the gas stream with a wash solution to form a used wash stream, a regenerator for regenerating the used wash solution, a reboiler and at least two heat exchangers in fluid communication with the absorber, regenerator and reboiler.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: December 9, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Barath Baburao, Jonathan W. Leister, Frederic Vitse
  • Patent number: 8900355
    Abstract: Impure carbon dioxide (“CO2”) comprising a first contaminant selected from the group consisting of oxygen (“O2”) and carbon monoxide (“CO”) is purified by separating expanded impure carbon dioxide liquid in a mass transfer separation column system. The impure carbon dioxide may be derived from, for example, flue gas from an oxyfuel combustion process or waste gas from a hydrogen (“H2”) PSA system.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: December 2, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Vincent White, Rodney John Allam
  • Patent number: 8894941
    Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler provided on a downstream side of the SOx removal equipment, for reducing the sulfur oxides that remain in the flue gas and decrease a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid to be reduced, and a regenerator for causing the CO2 absorption liquid to emit CO2 to recover CO2 and regenerate the CO2 absorption liquid, a heat exchanger which is provided on an inlet passage side of the electric dust collector, for decreasing a temperature of the flue gas are included, and a mist generation material in the flue gas is converted from a gas state to a mist state to cause particulates in the flue gas to arrest and reduce the mist generation material in the mist state.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: November 25, 2014
    Assignee: 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: 8882896
    Abstract: Post-combustion conditioning systems are described that include a flue gas conditioning device configured to condition an exhaust stream to produce a conditioned stream. First and second outlet ducts can be fluidly coupled to, and substantially supported by, the flue gas conditioning device. This advantageously can eliminate costly ductwork, reduce the space required, and reduce the pressure drop of the system. The first outlet duct can fluidly couple the flue gas conditioning device to an exhaust duct, such that the conditioned stream can flow from the first conditioning device via the first outlet duct.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: November 11, 2014
    Assignee: Fluor Technologies Corporation
    Inventors: Dennis W. Johnson, Jonathan Priest
  • Patent number: 8864879
    Abstract: Disclosed herein is a method comprising contacting a residual flue gas stream with a lean solution stream in an appendix stripper; where the residual flue gas stream comprises nitrogen, oxygen and moisture; and where the lean solution stream comprises ammonium, ammonium carbonate, ammonium bicarbonate and ammonium sulfate; forming a vapor phase that comprises ammonia vapor, water vapor, carbon dioxide and nitrogen; forming a liquid phase that comprises water, ammonium sulfate and ammonia; discharging the vapor phase to a capture system; and discharging the liquid phase to a direct contact cooler.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 21, 2014
    Inventors: Jalal Askander, Fred Kozak
  • Patent number: 8852318
    Abstract: In a method for compressing a water-containing CO2-rich fluid wherein the CO2-rich fluid is compressed in a compressor located upstream from the compression step, an antifreeze agent is injected into the water-containing CO2-rich fluid in order to lower the water solidification temperature. The antifreeze agent-containing CO2-rich fluid is frozen, water is extracted from the frozen fluid, and the frozen fluid is compressed in the compressor.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 7, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'exploitation des Procedes Georges Claude
    Inventors: Alain Briglia, Arthur Darde
  • Patent number: 8845788
    Abstract: A syngas treatment plant is configured to remove sulfurous compounds from syngas in a configuration having two flash stages for a physical solvent to so enrich the acid gas to at least 40 mol % H2S or higher as required by the Claus unit and to flash and recycle CO2 back to the syngas feed. Contemplated methods and configurations advantageously remove sulfur to less than 10 ppmv while increasing H2S selectivity at high pressure operation to thereby allow production of an H2S stream that is suitable as feed gas to a Claus plant.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: September 30, 2014
    Assignee: Fluor Technologies Corporation
    Inventor: John Mak
  • Patent number: 8845790
    Abstract: A method and system for removing gaseous contaminants from a gas stream by contacting the gas stream with a wash solution and regenerating the wash solution in a regeneration system for future use in removing gaseous contaminants from the gas stream.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 30, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Jonathan W. Leister, Barath Baburao, Frederic Vitse
  • Patent number: 8821615
    Abstract: The disclosure relates to a process for treating a gas mixture containing carbon dioxide and hydrogen sulphide, including the following steps: deacidificating the gas mixture by bringing the gas mixture into contact with a first lean absorbent solution stream, delivering a deacidified gas mixture, and a first rich absorbent solution stream; regenerating the first rich absorbent solution stream, delivering the first lean absorbent solution stream and a sour gas stream; distillating the sour gas stream, delivering a first carbon-dioxide-rich stream and a hydrogen-sulphide-rich stream; purifying the first carbon-dioxide-rich stream by bringing the first carbon-dioxide-rich stream into contact with a second lean absorbent solution stream, delivering a second carbon-dioxide-rich stream and a second rich absorbent solution stream, the molar concentration of carbon dioxide in the second carbon-dioxide-rich stream being greater than the molar concentration of carbon dioxide in the first carbon-dioxide-rich stream.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: September 2, 2014
    Assignee: Total S.A.
    Inventors: Claire Weiss, Renaud Cadours, Kamal Bouzalmata
  • Patent number: 8808430
    Abstract: The present invention relates to a process for purifying a gas mixture comprising dinitrogen monoxide, at least comprising the treatment of a gas mixture G-0 comprising dinitrogen monoxide to obtain a gas mixture G-A, at least comprising the absorption of the gas mixture G-0 in a solvent mixture S-I to obtain an offgas stream and a composition C-A, and the desorption of a gas mixture G-1 from the composition C-A to obtain a solvent mixture S-I?, subsequent condensation of the gas mixture G-A to obtain a liquid composition C-1 comprising dinitrogen monoxide and a gaseous mixture G-K, wherein the gaseous mixture G-K is recycled into the process.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: August 19, 2014
    Assignee: BASF SE
    Inventors: Beatrice Röβler-Feigel, Joaquim Henrique Teles, Dieter Baumann
  • Patent number: 8801838
    Abstract: This technology relates to the enlargement by water condensation in a laminar flow of airborne particles with diameters of the order of a few nanometers to hundreds of nanometers to form droplets with diameters of the order of several micrometers. The technology presents several advanced designs, including the use of double-stage condensers. It has application to measuring the number concentration of particles suspended in air or other gas, to collecting these particles, or to focusing these particles.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: August 12, 2014
    Assignee: Aerosol Dynamics Inc.
    Inventors: Susanne V. Hering, Gregory S. Lewis, Steven R. Spielman
  • Patent number: 8795415
    Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapor entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: August 5, 2014
    Assignees: BASF SE, JGC Corporation
    Inventors: Torsten Katz, Georg Sieder, Koji Tanaka
  • Patent number: 8790452
    Abstract: A system adapted to separate a natural gas feed stream into a sweetened gas stream, at least one liquid waste stream and at least one gaseous waste stream, and to discharge, recover or destroy the at least one liquid waste stream and the at least one gaseous waste stream.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: July 29, 2014
    Inventor: Richard Paul Posa
  • Patent number: 8790453
    Abstract: The present invention relates to a gas purification system for removal of acidic gases from a gas stream. The system comprises an absorption unit arranged for receiving a gas stream and contacting it with a wash solution stream and a cooling unit in fluid communication with the absorption unit. The cooling unit receives wash solution enriched with acidic gases from a first withdrawal level of said absorption unit, cools the enriched wash solution, and provides cooled, enriched wash solution to a first reintroduction level of the absorption unit upstream of the withdrawal level. The ratio of withdrawn wash solution is 10-90% of the total wash solution stream.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: July 29, 2014
    Assignees: Alstom Technology Ltd, Dow Global Technologies LLC
    Inventors: Barath Baburao, Craig Norman Schubert
  • Patent number: 8764885
    Abstract: Condensable vapors such as carbon dioxide are separated from light gases in a process stream. The systems and methods employ a direct exchange heat exchanger to desublimate the condensable vapors from the process stream. The condensable vapors are condensed by directly contacting a heat exchange liquid in the direct contact heat exchanger while the uncondensed light gases from the process stream form a separated light-gas stream. The separated light-gas stream can be used in a recuperative heat exchanger to cool the process stream.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: July 1, 2014
    Assignee: Sustainable Energy Solutions, LLC
    Inventors: Larry L. Baxter, Christopher S. Bence
  • Patent number: 8758483
    Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapor entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: June 24, 2014
    Assignees: BASF SE, JGC Corporation
    Inventors: Torsten Katz, Georg Sieder, Koji Tanaka
  • Patent number: 8753440
    Abstract: The present embodiments are directed towards the cooling of a solvent of a gas treatment system using a fluid flow from an air separation unit. In one embodiment, a system is provided that includes an air separation unit. The air separation unit has an air inlet configured to receive an air flow, an oxygen outlet configured to output an oxygen flow, a nitrogen outlet configured to output a nitrogen flow and a cooling system configured to cool the air flow to enable separation of the air flow into the oxygen flow and the nitrogen flow, wherein the cooling system is configured to cool a first solvent of a first gas treatment system.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: June 17, 2014
    Assignee: General Electric Company
    Inventors: Fredric Samuel Russ, George Frederick Frey, Charles Martin Mitchell, Paul William Plummer
  • Patent number: 8728210
    Abstract: An exhaust gas treatment apparatus comprises an ammonia absorption system and an ammonia conversion system. The ammonia absorption receives ammonia-containing tail gas generated by a semiconductor process, and removes dust from the tail gas, absorbs and decomposes ammonia gas from the tail gas, converts the ammonia gas into aqueous ammonia, and emits the tail gas without the dust and the ammonia to an external environment. The ammonia conversion system receives the ammonia solution from the ammonia absorption system, and converts it into gaseous ammonia, and then converts the gaseous ammonia to produce liquid ammonia by vaporization and cooling-pressurized liquefaction. After that, the liquid ammonia is purified by a purification system to formed hi-purity liquid ammonia.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 20, 2014
    Inventor: Hsueh Yuan Lee
  • Patent number: 8702842
    Abstract: A method for removing elemental sulfur from a hot gas stream, such as an autoclave vent gas, while simultaneously cooling the gas stream. The method results in conversion of sulfur in the hot gas stream to the form of solid, non-sticky sulfur allotropes such as rhombic sulfur while avoiding formation of sticky sulfur allotropes such as monoclinic sulfur, thereby avoiding scaling and fouling of plant equipment. According the method, the hot gas stream is contacted with an aqueous medium containing a particulate material inside a quench vessel having a first inlet for the hot gas stream, a second inlet for the aqueous medium, and an outlet for removing a sulfur-containing liquid fraction from the vessel. At least a portion of the sulfur contained in the hot gas stream, along with other condensable materials, becomes incorporated into the aqueous medium and is subsequently drained from the vessel.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 22, 2014
    Assignee: Hatch Ltd.
    Inventors: Kevin S. Fraser, William E. McCombe
  • Patent number: 8696797
    Abstract: A method for removing CO2 from a pressurized gas stream with the effluent CO2 remaining at system pressure or higher is disclosed. Specifically, the removal method provides near isothermal absorption of CO2 from a gas stream in a suitable solvent at an elevated pressure and relatively low temperature. The solvent is then removed from contact with the gas stream, and the temperature is increased to such an extent that the CO2 will flash from the solvent.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: April 15, 2014
    Assignee: General Electric Company
    Inventor: Raymond Douglas Steele
  • Patent number: 8690992
    Abstract: Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: April 8, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Sanjay Kumar Dube, Daniel Nicolaus Secundus Mattstedt, Joseph P. Naumovitz
  • Publication number: 20140060327
    Abstract: A system and method is provided for removing a condensate from a synthetic gas treatment system. The method includes feeding a first fluid stream into a bottom section of a scrubber chamber defined by a scrubber shell of a scrubber. The first fluid stream includes at least one condensable component. A second fluid stream is fed into a top section of the scrubber chamber, such that the second fluid stream flows in the scrubber chamber in a countercurrent flow direction to the first fluid stream. The second fluid stream contacts the first fluid stream causing the at least one condensable component to form the condensate, such that the condensate and the second fluid stream are collected in the bottom section of the scrubber chamber. The method further includes feeding a third fluid stream into the top section of the scrubbing chamber, such that the third fluid stream contacts the condensate and the second fluid stream and forms an emulsion.
    Type: Application
    Filed: May 21, 2013
    Publication date: March 6, 2014
    Applicant: GRUPO GUASCOR S.L
    Inventor: Roberto Gil
  • Patent number: 8647477
    Abstract: Water can be separated from a liquid composition (e.g., salt water) by directing a carrier gas flow through an evaporator and directly contacting the carrier gas flow with the liquid composition in the evaporator to humidify the carrier gas with water evaporated from the liquid composition, producing a humidified gas flow, which is then compressed by injecting a fluid that includes steam and/or an organic compound at an elevated pressure at least five times greater than the pressure in the evaporator and at a temperature at least as high as a saturation temperature of the steam/organic compound at the elevated pressure of the fluid. After being compressed, the humidified gas flow is directed through at least one condenser where water is condensed from the compressed humidified gas flow and collected; and the dehumidified gas flow is re-circulated back through the evaporator for reuse as the carrier gas.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: February 11, 2014
    Assignees: Massachusetts Institute of Technology, King Fahd University of Petroleum and Minerals
    Inventors: Prakash N. Govindan, Karan H. Mistry, John H. Lienhard, Syed M. Zubair
  • Patent number: 8647414
    Abstract: An apparatus is provided for drying a gas by gradually releasing and condensing the moisture in various chambers of a column, different pressures and different temperatures thus being present in the chambers of the column. The gas to be dried is first fed into the bottom chamber, where the largest amount of the water contained in the gas is condensed, and the gas is then discharged from the bottom chamber via a nozzle. Subsequently the gas is cooled and fed into at least one more chamber located above the first chamber, where further moisture is condensed before the resulting condensate is fed via a pipe—preferably shaped like a siphon—into the bottom reservoir to prevent the gas from flowing from the chamber below into the chamber above. A process which enables a gas to be dried is also described.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: February 11, 2014
    Assignee: UHDE GmbH
    Inventors: Thilo Von Trotha, Julia Raab, Ernst Sichtermann
  • Patent number: 8557024
    Abstract: An IGCC plant has a precombustion decarbonization unit in which acid gas is removed from a combustion gas before the combustion gas enters a combustion turbine. In one preferred configuration, a sulfur removal unit removes hydrogen sulfide from a feed gas before the desulfurized feed gas enters an autorefrigeration unit in which carbon dioxide is removed. In another preferred configuration, hydrogen sulfide is converted to carbonyl sulfide in a dryer, and the carbonyl sulfide is absorbed in the liquid carbon dioxide that is prepared from the feed gas using autorefrigeration.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: October 15, 2013
    Assignee: Fluor Technologies Corporation
    Inventors: Satish Reddy, Sunil Vyas, Jeffrey Scherffius
  • Publication number: 20130260463
    Abstract: A method for processing a fluid includes sparging a fluid within the compartment of a container with an initial gas so that the initial gas passes through a portion of the fluid to form a humid gas within the compartment. The humid gas is passed out of the compartment of the container and into a flexible condenser bag. The humid gas within the condenser bag is cooled so as to separate the humid gas within the condenser bag into a condensed fluid and a dehumidified gas. The condensed fluid and the dehumidified gas is then removed from the condenser bag.
    Type: Application
    Filed: May 22, 2013
    Publication date: October 3, 2013
    Applicant: HyClone Laboratories, Inc.
    Inventors: Clinton C. Staheli, Nephi D. Jones, Michael E. Goodwin
  • Patent number: 8529666
    Abstract: Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide. Natural gas liquids may be first separated and removed before fractionation. After fractionation, the waste stream is pressurized and transmitted to a remote injection well for injection either for disposal of the waste stream and preferably to urge hydrocarbons toward the producing well. A hydrocarbon stream proceeds from fractionation to a methanol absorber system which removes carbon dioxide gas. The hydrocarbon stream is thereafter separated into at least hydrocarbon gas, nitrogen and helium. Some of the nitrogen is reintroduced into a fractionation tower to enhance the recovery of hydrocarbons. A methanol recovery system is provided to recover and reuse the methanol. The hydrocarbons are sold as natural gas and the helium is recovered and sold. Excess nitrogen is vented.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: September 10, 2013
    Inventor: Donald Leo Stinson
  • Patent number: 8523986
    Abstract: In a gas scrubber, a gas stream containing at least one sublimed substance is brought in contact with a liquid or melt stream containing at least one thermally convertible substance, which has a lower temperature than the gas stream. For the intensive and intimate mixing of the gas stream with the liquid or melt stream, an orifice plate with a plurality of holes each surrounded by a retaining edge is provided in the upper part of the gas scrubber, and above the orifice plate inlets for the gas stream and the liquid or melt stream are provided.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: September 3, 2013
    Assignee: Lurgi GmbH
    Inventors: Arne Schadt, Juergen Eberhardt, Martin Mueller-Hasky
  • Patent number: 8518157
    Abstract: Disclosed is a device for purifying a process gas in a reflow soldering system. Said device comprises a receptacle that contains at least one packing bed. The process gas is fed to the receptacle via a gas inlet while being discharged from the receptacle after penetrating the packing bed. The inventive device further comprises an apparatus for delivering a liquid fluid to the receptacle. Secondary materials of the soldering process in the reflow soldering system can be absorbed by the liquid fluid and thus be eliminated from the process gas. Secondary materials and/or droplets and vapors of the fluid can additionally be absorbed and adsorbed on the surface of the packing.
    Type: Grant
    Filed: February 20, 2006
    Date of Patent: August 27, 2013
    Assignee: Rehm Thermal Systems GmbH
    Inventors: Hans Bell, Jürgen Felgner, Ralf Heidenreich
  • Patent number: 8512445
    Abstract: The present invention relates to systems and processes for reducing the amount of carbon dioxide in a carbon dioxide-containing gas. In particular, the carbon dioxide-containing gas is contacted with a carbonate-containing solution. At least a portion of carbon dioxide in the carbon dioxide-containing gas is absorbed in the carbonate-containing solution to produce a carbon dioxide-, carbonate-containing solution. A heat recovery mechanism is employed to recover heat from the carbon dioxide-, bicarbonate-, carbonate-containing solution exiting the chamber to maintain the temperature of the chamber within a range of from about 50° C. to about 90° C.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: August 20, 2013
    Inventors: Shiaoguo Chen, Zijiang Pan
  • 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
  • Patent number: 8470077
    Abstract: Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: June 25, 2013
    Assignee: ALSTOM Technology Ltd
    Inventors: Sanjay Kumar Dube, Daniel Nicolaus Secundus Mattstedt, Joseph P. Naumovitz
  • Patent number: 8465006
    Abstract: The productivity of a combined heat and mass transfer device is improved by directing a flow of a carrier-gas mixture through a fluid flow path in a combined heat and mass transfer device operating at a pressure below atmospheric pressure. Heat and mass are transferred from or to the carrier-gas mixture by a direct or indirect interaction with a liquid composition that includes a vaporizable component (e.g., water) in a liquid state to substantially change the content of the vaporizable component in the carrier-gas mixture via evaporation of the vaporizable component from the liquid composition or via condensation of the vaporizable component from the carrier-gas mixture, producing a flow of carrier-gas mixture having a concentration of the vaporizable component that differs from the concentration of the vaporizable component in the carrier-gas mixture before the heat and mass transfer process.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: June 18, 2013
    Assignees: Massachusetts Institute of Technology, King Fahd Univeristy of Petroleum and Minerals
    Inventors: Mostafa H. Elsharqawy, John H. Lienhard, Syed M. Zubair, Prakash N. Govindan
  • Patent number: 8460431
    Abstract: A method for regenerating an amine-containing scrubbing solution which is obtained during gas purification and in which CO2 and sulfur compounds are chemically bonded, as well as a system that is suitable for carrying out the method. The contaminated scrubbing solution is heated, compressed, and expanded in several stages such that CO2 and sulfur compounds are separated. The expanded scrubbing solution is subdivided into two partial streams, and one partial stream is recirculated into the process.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: June 11, 2013
    Assignee: MT-Biomethan GmbH
    Inventor: Lothar Günther
  • Patent number: 8459572
    Abstract: Technology is presented for the high efficiency concentration of fine and ultrafine airborne particles into a small fraction of the sampled airflow by condensational enlargement, aerodynamic focusing and flow separation. A nozzle concentrator structure including an acceleration nozzle with a flow extraction structure may be coupled to a containment vessel. The containment vessel may include a water condensation growth tube to facilitate the concentration of ultrafine particles. The containment vessel may further include a separate carrier flow introduced at the center of the sampled flow, upstream of the acceleration nozzle of the nozzle concentrator to facilitate the separation of particle and vapor constituents.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: June 11, 2013
    Assignee: Aerosol Dynamics Inc.
    Inventors: Susanne Hering, Gregory Lewis, Steven R. Spielman
  • Patent number: 8460436
    Abstract: The present invention relates processes of removal of acidic gases from a gas stream, comprising the steps of a) contacting a wash solution stream with said gas stream containing acidic gases to be removed to allow absorption of the acidic gases into the wash solution stream; b) withdrawing wash solution enriched with acidic gases from said wash solution stream at a first withdrawal level; c) cooling said withdrawn wash solution; and d) reintroducing said cooled wash solution to the wash solution stream at a first reintroduction level to form a mixed wash solution stream, said first reintroduction level being upstream of said first withdrawal level. The present invention also relates to systems for removal of acidic gases from a gas stream.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: June 11, 2013
    Assignees: Alstom Technology Ltd, Dow Global Technologies LLC
    Inventors: Barath Baburao, Craig Schubert
  • Patent number: 8454731
    Abstract: Vapor-liquid contacting apparatuses comprising a primary contacting zone and a secondary contacting zone are disclosed. A representative secondary contacting zone is a secondary absorption zone, such as a finishing zone for subsequent contacting of the vapor effluent from the primary contacting zone to further remove impurities and achieve a desired purity of purified gas exiting the secondary absorption zone. The secondary contacting zone is disposed below the primary contacting zone, such that the secondary contacting zone, which must operate efficiently in removing generally trace amounts of remaining impurities, is more protected from movement than the more elevated, primary or initial contacting stages for bulk impurity removal. The apparatuses are therefore especially beneficial in offshore applications where they are subjected to rocking.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: June 4, 2013
    Assignee: UOP LLC
    Inventor: Zhanping Xu
  • Publication number: 20130118351
    Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler provided on a downstream side of the SOx removal equipment, for reducing the sulfur oxides that remain in the flue gas and decrease a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid to be reduced, and a regenerator for causing the CO2 absorption liquid to emit CO2 to recover CO2 and regenerate the CO2 absorption liquid, a heat exchanger which is provided on an inlet passage side of the electric dust collector, for decreasing a temperature of the flue gas are included, and a mist generation material in the flue gas is converted from a gas state to a mist state to cause particulates in the flue gas to arrest and reduce the mist generation material in the mist state.
    Type: Application
    Filed: May 31, 2011
    Publication date: May 16, 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: 8435330
    Abstract: A system and process is provided primarily for use in hot climates, using ammonia solution to remove carbon dioxide from desulphurised water-vapor-containing flue gases of a fossil fuel power plant, while outputting useful streams of water and fertilizer.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: May 7, 2013
    Assignee: ALSTOM Technology Ltd
    Inventors: Otto M. Bade, Charles D. Soothill
  • Patent number: 8430947
    Abstract: A method of introducing flue gas, from a flue stack in a steam-assisted production facility, into a heat exchanger. The flue gas comprises boiler combustion products selected from at least one of commercial pipeline gas and produced gas. The method begins by cooling a portion of the water vapor in the flue gas in the heat exchanger to produce flue gas water. This flue gas water is then collected and removed as make-up water.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: April 30, 2013
    Assignee: ConocoPhillips Company
    Inventors: Edward G. Latimer, Christopher R. Copeland, Ryan K. Davis, James Scinta, Dale L. Embry, David C. Lamont, Charles J. Murray, Ryan D. Donahe
  • Patent number: 8425664
    Abstract: Petroleous production is associated with effluents well known to foul lines, nozzles, and containers while consuming substantial energy to assist in both production and remediation. A heat exchanger and manifold system maximizes flows, minimizes changes in flow cross-section, and maximizes heat transfer area, while recycling both water and heat between processes. Dirty regions and clean regions result from scrubbing horizontal exhaust stacks and evaporation of production water in concert to remediate one another, while recycling a significant portion of the energy consumed by each. The heat exchanger relies on a manifold having many layered conduits, each connected to a single layer level of one or more cylindrical conduits in the exchanger. The cylinders of the exchanger themselves are arranged in multiple layers, each layer of a heat exchanger element being connected to a single layer of the manifold.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: April 23, 2013
    Assignee: Purestream Technology, LLC
    Inventors: J. Clair Batty, David A. Bell, Craig E. Cox
  • Patent number: 8425655
    Abstract: The present invention provides a gas pressurized separation system to strip a product gas from a liquid stream and yield a high pressure gaseous effluent containing the product gas. The system comprises a gas pressurized stripping apparatus, such as a column, with at least one first inlet allowing flow of one or more liquid streams in a first direction and at least one second inlet allowing flow of one or more high pressure gas streams in a second direction, to strip the product gas into the high pressure gas stream and yield through at least one outlet a high pressure gaseous effluent containing the product gas; and two or more heat supplying apparatuses provided at different locations along the column. Processes for separating a product gas from a gaseous mixture to yield a high pressure gaseous effluent containing the product gas, utilize the gas pressurized separation system described above.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: April 23, 2013
    Assignee: Carbon Capture Scientific, LLC
    Inventors: Shiaoguo Chen, Zijiang Pan
  • Patent number: 8388737
    Abstract: A method and apparatus for recovering a gaseous component from an incoming gas stream is described. The incoming gas stream is contacted with a lean aqueous absorbing medium to absorb at least a portion of the gaseous component from the incoming gas stream to form a lean treated gas stream and a rich aqueous absorbing medium. At least a portion of the gaseous component is desorbed from the rich aqueous absorbing medium at a temperature to form an overhead gas stream and a regenerated aqueous absorbing medium. At least a portion of the overhead gas stream is treated to recover a condensate stream. At least a portion of the condensate stream is used to form a heated stream. At least a portion of the heated stream is recycled back to the desorbing step. Novel absorbing medium compositions to recover carbon dioxide and/or hydrogen sulfide are also described.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: March 5, 2013
    Assignee: University of Regina
    Inventors: Don Gelowitz, Paitoon Tontiwachwuthikul, Raphael Idem
  • Patent number: 8388739
    Abstract: A method for treating natural gas using a vessel having a manifold for introducing gas in the vessel, a flow disperser above the manifold that prevents channeling of the gas, a spray system for spraying a treating liquid into an upwardly rising column of gas and, optionally, a liquid level controller for maintaining the level of a pool of treating liquid above the flow disperser.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: March 5, 2013
    Assignee: Valerus Compression Services, LP
    Inventors: Edwin W. Cash, Thomas J. Bradley
  • Patent number: 8357230
    Abstract: The invention relates to a process for purifying crude synthesis gas (1) containing metal carbonyls, in which undesirable substances such as sulphur components and/or carbon dioxide (CO2) and/or hydrocyanic acid (HCN) are scrubbed out by scrubbing with a physically acting scrubbing medium in at least one process step (main scrub (H)), and also an apparatus for carrying out the process. The crude synthesis gas (1) before introduction into the main scrub (H) is subjected to a gas scrub (carbonyl scrub (C)) in which a partial amount (4) of the laden scrubbing medium (2) taken off from the main scrub is used as scrubbing medium, with the partial amount (4) being chosen so that the metal carbonyls are (selectively) separated off from the crude synthesis gas (1) in the carbonyl scrub (C) largely independently of the other gas components.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: January 22, 2013
    Assignee: Linde Aktiengesellschaft
    Inventor: Ulvi Kerestecioglu
  • Patent number: 8353979
    Abstract: A heat recovery apparatus, for an absorption apparatus for removing CO2 in combustion exhaust gas emitted from a thermal power plant 112 and for regeneration apparatuses 104 to 107 for regenerating CO2 in an absorbing liquid from the absorption apparatus, includes a regeneration-apparatus-exit-CO2-gas cooling apparatus 100 for cooling CO2 gas from an exhaust port of the regeneration apparatus, and may further include a circulation line 102 for circulating reflux water among boiler feedwater heaters 114 and 116 in the thermal power plant 112 and the regeneration-apparatus-exit-CO2-gas cooling apparatus 100.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: January 15, 2013
    Assignees: Mitsubishi Heavy Industries, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Tsuyoshi Oishi, Hiroshi Tanaka, Takahiko Endo, Masahiko Tatsumi, Yasuyuki Yagi