Boiler Feed Water Degassing Patents (Class 95/244)
  • Patent number: 10053369
    Abstract: The present disclosure is directed to methods for treating an organic material, including the steps of transporting the organic material into a first vessel; heating the organic material in the first vessel and applying a negative pressure to the organic material in the first vessel to a boiling point of the organic material, wherein the heat and negative pressure separates a portion of an ammonia from the organic material; removing the portion of the ammonia from the first vessel; transporting the removed portion of the ammonia from the first vessel to an acid solution in a second vessel; and separating a portion of the ammonia from the acid solution.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: August 21, 2018
    Assignee: The Research Foundation for The State University of New York
    Inventors: Wendong Tao, Anayo Thomas Ukwuani
  • Patent number: 8936670
    Abstract: The invention relates to a device for treating water of the spray type, such as a deaerator or preheater. According to the invention the connection between the vessel (12) and the sprayer (34) and the supply of water to be treated comprises a pipe section (40) having a first open end in fluid communication with a treatment chamber and a second open end provided with a first flange (60) for connecting to a sprayer (34), the sprayer (34) comprising a sprayer flange (68) connected to said first flange (60), the sprayer flange (68) carrying the sprayer (34), which is in fluid communication with a connecting pipe (72) at one end thereof, the connecting pipe (72) extending through the first flange (60) to a coupling flange (74) for connection to the supply of water to be treated.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: January 20, 2015
    Assignee: Stork Thermeq B.V.
    Inventor: Jan Johan Averesch
  • Patent number: 8876955
    Abstract: Method for removing dissolved gases from water to produce boiler feed water in a catalytic steam reforming process where boiler feed water is heated by indirect heat transfer with a reformate stream and/or a combustion product gas stream and the boiler feed water subsequently flash vaporized to form steam and residual liquid water, where the steam formed by flash vaporization strips the dissolved gases from the water.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: November 4, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joel Charles MacMurray, Gary Stuart Roth, Russell Ira Snyder, III, Gerald Michael Loughney
  • Patent number: 8801842
    Abstract: Phase separator comprising a housing with a main inlet and a main outlet and one or more secondary outlets, the main inlet arranged for allowing the multiphase mixture to enter the phase separator and the main outlet arranged for allowing the treated multi-phase mixture to leave the phase separator, i.e. after separation of phase entities from the multi-phase mixture, the one or more secondary outlets arranged for allowing the separated phase entities to leave the phase separator, characterized in that the phase separator further comprises compartmentalization means.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: August 12, 2014
    Assignees: Universiteit Antwerpen, Karel de Grote-Hogeschool, Katholieke Hogeschool Antwerpen VZW
    Inventor: Roel Vandenbulcke
  • Publication number: 20140084213
    Abstract: Method for removing dissolved gases from water to produce boiler feed water in a catalytic steam reforming process where boiler feed water is heated by indirect heat transfer with a reformate stream and/or a combustion product gas stream and the boiler feed water subsequently flash vaporized to form steam and residual liquid water, where the steam formed by flash vaporization strips the dissolved gases from the water.
    Type: Application
    Filed: October 1, 2012
    Publication date: March 27, 2014
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Joel Charles MacMurray, Gary Stuart Roth, Russell Ira Snyder, Gerald Michael Loughney
  • Patent number: 8663363
    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; a regenerator that reduces CO2 contained in rich solvent that has absorbed CO2 in the CO2 absorber to regenerate the rich solvent, so that the CO2 absorbent that is lean solvent having CO2 reduced in the regenerator is reused in the CO2 absorber; and a controller that controls to detect the absorbent concentration in the CO2 absorbent, to increase the volume of CO2 absorbent to be circulated based on a decrease in the absorbent concentration, and to adjust the volume of steam to be supplied in the regenerator based on the volume of the CO2 absorbent to be circulated.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: March 4, 2014
    Assignees: Mitsubishi Heavy Industries, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Masaki Iijima, Hiroshi Tanaka, Yoshiki Sorimachi, Masahiko Tatsumi, Yasuyuki Yagi, Kouki Ogura
  • Patent number: 8562716
    Abstract: A method for degassing a liquid of a substantially closed liquid circulation system at a working pressure may include passing at least a partial flow of the liquid through a restriction into a chamber in which a degassing pressure is maintained, the degassing pressure being higher than atmospheric pressure and lower than the working pressure; separating gas withdrawn from the partial flow of liquid from the partial flow; removing the gas from the chamber; and pumping the degassed partial flow of the liquid back into the substantially closed circulation system. The restriction may include a nozzle, and the step of passing at least the partial flow of the liquid through the restriction into the chamber may include spraying at least the partial flow of the liquid through the nozzle into the chamber for obtaining a jet and/or mist of the liquid in the chamber.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: October 22, 2013
    Assignee: Spiro Enterprises B.V.
    Inventor: Antonius Gerardus Wilhelmus Maria Lamers
  • Patent number: 8419842
    Abstract: An air eliminator including a housing having first and second portions, the housing defining: a chamber, an inlet in fluid communication with the chamber; an outlet in fluid communication with the chamber; and an axis extending from the first portion to the second portion, a float assembly connected to the first portion of the chamber for releasing air from the chamber, and degassing disks stacked within the chamber along an axis, wherein each disk includes a plurality of rings such that the degassing disks cause micro gas pockets in water passing through the chamber to combine into relatively large and buoyant air pockets that collect and pass along the axis to the float assembly for release.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 16, 2013
    Assignee: Watts Regulator Company
    Inventors: Steven Castrigno, James Erhardt, Paul J. Lake, Jeffrey A. Scilingo
  • Patent number: 8359746
    Abstract: A spray nozzle assembly and hub combination for operation in a boiler feedwater deaerator is disclosed, the combination including a tubular hub capable of being affixed to a wall of a deaerator tank and a spray nozzle assembly that is removably engageable with the hub, the nozzle assembly including a nozzle body, a twist lock for retaining the nozzle body relative to the hub when the nozzle body is in a fully engaged position, and a spreader moveably coupled to the nozzle body and biased by a spreader spring against opening, the spreader is capable of moving to an open position against the spreader spring bias in response to boiler feedwater pressure to form an annular opening about the spreader, thereby enabling feedwater flow.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 29, 2013
    Assignee: Crane Environmental, Inc.
    Inventors: Russell G. Burke, Tao D. Nguyen, Joseph T. Strogus
  • Patent number: 7811420
    Abstract: A method of and apparatus is disclosed for water desalination including steps of transferring water vapor from salt-water in a vaporization zone 7, via a water vapor transfer zone 12, to a condensation zone 11, and condensing the water vapor into fresh-water. The water vapor transfer zone 12 is maintained substantially free of any gas other than water vapor. Heat is supplied to the vaporization zone 7 and extracted from the condensation zone 11, at relative rates such that there is a net transfer of water from the vaporization zone to the condensation zone. Also disclosed is a method of and apparatus for degassing salt water using at least two degassing chambers 17A, 17B each provided with a valved vent 47 and a valved inlet 21,29,90,91, with a valved pipe circuit 17a, 72-82,85-87, having a pump 71.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: October 12, 2010
    Inventor: Sven Olof Sonander
  • Publication number: 20090165650
    Abstract: A nitrogen sweep stream for use in a deaerator during deaerator operations to disperse and remove oxygen and carbon dioxide from boiler feed water prior to being fed to a boiler. The nitrogen sweep stream substantially reduces the amount of oxygen and carbon dioxide in the water supply system. The water supply system can be sent to a deaerator stripper or can be heated using a heat exchanger. A heat water supply stream can also be sent directly to the deaerator water tank. The nitrogen sweep stream reduces the amount of oxygen contained with the boiler feed water stream to less than 7 ppb and reduces the amount of carbon dioxide to nondetectable levels. The nitrogen sweep may be provided to an existing deaerator, not having been previously provided with a nitrogen sweep, while the deaerator is running without shutting down the deaerator.
    Type: Application
    Filed: December 2, 2008
    Publication date: July 2, 2009
    Inventors: Ken M. Istre, David C. Payne
  • Patent number: 7540905
    Abstract: A deaerating and degassing system for a power plant condenser, comprising a condensate collector and optionally an air cooler, whereby the deaerating and degassing system includes a suction aggregate and a suction line for a steam-inert gas mixture and the suction line connects the condenser or, in case an air cooler is present, the air cooler of the condenser, to the suction aggregate. In the suction line, there is a direct-contact condensation device, for example, a packing column or a tray contact apparatus, through which the steam-inert gas mixture can flow in direct contact in a countercurrent to the chilled condensate from the condensate collector.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 2, 2009
    Assignee: Alstom Technology Ltd
    Inventors: Francisco Leonardo Blangetti, Hartwig E. Wolf
  • Patent number: 7503961
    Abstract: A nitrogen sweep stream for use in a deaerator during deaerator operations to disperse and remove oxygen and carbon dioxide from boiler feed water prior to being fed to a boiler. The nitrogen sweep stream substantially reduces the amount of oxygen and carbon dioxide in the water supply system. The water supply system can be sent to a deaerator stripper or can be heated using a heat exchanger. A heat water supply stream can also be sent directly to the deaerator water tank. The nitrogen sweep stream reduces the amount of oxygen contained with the boiler feed water stream to less than 7 ppb and reduces the amount of carbon dioxide to nondetectable levels. The nitrogen sweep may be provided to an existing deaerator, not having been previously provided with a nitrogen sweep, while the deaerator is running without shutting down the deaerator.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: March 17, 2009
    Assignee: Westlake Chemical Corporation
    Inventors: Ken M. Istre, David C. Payne
  • Patent number: 7429288
    Abstract: A spinning impingement multiphase contacting device and method for heat or mass transfer are disclosed. A first fluid, from which the transfer is to occur, is caused to impinge and be entrained in a spinning permeable element, creating a highly dispersed phase. The highly dispersed phase contacts the second fluid to cause the desired heat or mass transfer.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 30, 2008
    Assignee: Cleveland Gas Systems, LLC
    Inventors: Nelson C. Gardner, Xintian Zheng, Robert E. Harris
  • Patent number: 7326283
    Abstract: A spinning impingement multiphase contacting device and method for heat or mass transfer are disclosed. A first fluid, from which the transfer is to occur, is caused to impinge and be entrained in a spinning permeable element, creating a highly dispersed phase. The highly dispersed phase contacts the second fluid to cause the desired heat or mass transfer.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: February 5, 2008
    Assignee: Cleveland Gas Systems, LLC
    Inventors: Nelson C. Gardner, Xintian Zheng, Robert E. Harris
  • Patent number: 7066988
    Abstract: A segmented plate adapted for assembly within a confined area or volume, and a method of assembly of the segmented plate. The plate, as assembled, has an exterior perimeter that includes exterior edge-boundaries of a plurality of generally rigid plate-sections, each of the plate-sections are sized smaller than the access to permit passage therethrough. Extending at least partially along adjacent boundaries of plate-sections that have been adjacently arranged, is a self-lock seam, or interposed therebetween is a flexible barrier. The self-lock seam may have a variety of configurations. An aperture or opening having an inner perimeter may be included. The inner perimeter of the aperture/opening may be of a variety of shapes. The confined area may consist of a chamber of a deaerator tank or other volume to which access is limited. The flexible barrier may be made of a material having resiliency.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: June 27, 2006
    Assignee: The Regents of the University of Colorado
    Inventors: Victor Omark Méndez-Ferreira, Kenneth Morse
  • Patent number: 7033420
    Abstract: A process is disclosed for thermally degassing a condensate or feedwater by heating the condensate or feedwater in a feedwater vessel/degassing means, to which preheated condensate is fed and from which feedwater for heating surfaces heated in a heat recovery steam generator is removed. Structurally simple degassing, advantageous in thermal terms, is achieved by virtue of the fact that the condensate is preheated in a first condensate preheater, and that a partial stream of the preheated condensate, which is preheated further in a second condensate preheater, is used to heat the condensate or feedwater in the feedwater vessel/degassing means.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: April 25, 2006
    Assignee: Alstom Technology Ltd.
    Inventor: Erhard Liebig
  • Patent number: 6375718
    Abstract: Connected in a water circuit for cooling or heating gaseous fuel in a fuel system for a gas turbine plant is a gas/liquid separation apparatus which serves to separate gases contained in the water from the water, and to detect them. The container of the separation apparatus is split up by a partition into a water entry chamber and a water exit chamber. The incoming water flow is split up in the water entry chamber into an upward-flowing and a downward-flowing water flow. Located above the water is a gas-filled space into which gas bubbles disperse. The upward-flowing water flows over an overflow weir, and the downward-flowing water flows into the water exit chamber through openings in the lower region of the partition. The separation apparatus thus includes a calm, free water level in the water entry chamber, and an irrotational flow from the water exit chamber.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: April 23, 2002
    Assignee: Alstom (Switzerland) Ltd
    Inventors: Francisco Blangetti, Stephan Werner Doehler, Erhard Liebig, Rainer Schlageter
  • Patent number: 5476525
    Abstract: A steam condensate recovery component particularly useful for pressurized deaerator units, the recovery component being a vertical extension pipe of thermally conductive material connected to a system air vent and extending into the atmosphere. The extension pipe includes a thermally controlled steam trap at the distal end of the extension pipe for blocking escape of steam and allowing return of recovered condensate to the deaerator unit.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: December 19, 1995
    Inventor: Martin Bekedam
  • Patent number: 5310417
    Abstract: An atmospheric deaerator unit having a vessel divided into an atmospheric section and a low pressure section, the low pressure section containing steam supply line for deaerating a water spray circulated from the atmospheric section through a water circulating line using a series of spray heads for spraying water into the low pressure section, the circulating line communicating between the low pressure section and the atmospheric section, the atmospheric section having a vent open to atmosphere with a vent condenser to purge vented non-condensible gases from the atmospheric section, and, the low pressure section being pressure protected by a water column conduit communicating between the vessel sections to return overflow water and blow-through excess pressurized steam and vapor from the pressurized section to the atmospheric section, the unit being controlled by a steam control valve using pressure of the pressurized section or water temperature in the atmospheric section.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: May 10, 1994
    Inventor: Martin Bekedam