With Programmed, Cyclic, Or Time Responsive Control Means Patents (Class 96/115)
  • Patent number: 9492781
    Abstract: Lightweight, small, portable devices and methods are disclosed that provide oxygen-enriched air using an ultra rapid adsorption cycle based on advanced molecular sieve materials.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: November 15, 2016
    Assignee: Separation Design Group LLC
    Inventors: Stephen Douglas Galbraith, David K. Walker, Kenneth J. McGowan, Elise N. DePetris, Judith C. Galbraith
  • Patent number: 9114353
    Abstract: A dehydrator for dehydrating air supplied to a power related or mechanical device includes a first container configured to hold a desiccant, a first heater arranged with the first container configured to heat the desiccant in the first container, a second container configured to hold a desiccant, and a second heater arranged with the second container configured to heat the desiccant in the second container. The dehydrator further includes a conduit configured to selectively connect one of the first container and the second container to the power related or mechanical device and a controller configured to selectively operate one of the first heater and the second heater.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 25, 2015
    Assignee: Waukesha Electric Systems, Inc.
    Inventors: Arthur Martin, John Pruente
  • Patent number: 8940081
    Abstract: In order to provide a technique for enriching a combustible gas that allows enrichment of the combustible gas to a higher concentration in an efficient manner with minimization of loss of a source material, there are provided an adsorption tower charged with an adsorbent, a feeding/discharging means for feeding a source gas containing a combustible gas and air, a collecting means for desorbing the combustible gas adsorbed to the adsorbent and collecting the desorbed gas, a controlling means for sequentially effecting a combustible gas adsorption process and a combustible gas desorption process, a detecting means for detecting the concentration of the combustible gas in the source gas, and an operation condition setting section for varying an adsorption completion timing for the controlling means to complete the adsorption process, based on the combustible gas concentration detected by the detecting means.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: January 27, 2015
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Takahisa Utaki, Hajime Morioka, Tamotsu Kotani
  • Patent number: 8920545
    Abstract: A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: December 30, 2014
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Katsuhiko Makino
  • Patent number: 8882883
    Abstract: Apparatus and methods are disclosed that allow for the monitoring and analysis of production process data for a multi-step asynchronous cyclic production process (e.g. pressure swing adsorption) in a steady state plant (such as a steam methane reforming plant). Data collected from cooperating sensors is processed applying a moving window discrete Fourier transform (DFT). The transformed data can be further analyzed in the broader steady-state plant environment to accurately detect any process anomalies and avoid false alarms.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: November 11, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Erdem Arslan, Debashis Neogi, Xianming Jimmy Li, Pratik Misra
  • Patent number: 8858690
    Abstract: High volumetric-efficiency thermally integrated systems for capturing a target gas from a process gas stream include a monolithic body and a distribution system. The monolithic body includes a first plurality of channels and a second plurality of channels each having sorbent surfaces that reversibly adsorb the target gas. The channels are in thermal communication such that heat from an exothermic adsorption of target gas in one plurality of channels is used by an endothermic desorption of target gas from the other plurality of channels. Methods for separating a target gas from a process gas stream include switching the high volumetric-efficiency thermally integrated systems between a first state and a second state. In the first state, the first plurality of channels undergoes desorption while the second undergoes adsorption. In the second state, the second plurality of channels undergoes desorption while the first plurality undergoes adsorption.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: October 14, 2014
    Assignee: Corning Incorporated
    Inventors: Amit Halder, Steven Bolaji Ogunwumi
  • Publication number: 20140260978
    Abstract: Provided is an air drying system that includes a desiccant container including desiccant material for removing moisture from a pressurized air stream directed through the container in a first direction, a heater coupled to the container for selectively providing heated air to the container in a second direction opposite the first direction, and an air source coupled to the container for selectively providing cooled air to the container in the first direction. By introducing the cooled air in the opposite direction as the heated air, the duration of the cooling can be extended to allow for further removal of adsorbed moisture from the desiccant, thereby lowering the dew point. The extended duration of cooling also allows for additional removal of heat from the desiccant container to minimize heat spikes when the desiccant container is switched to the adsorbing cycle.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: PARKER-HANNIFIN CORPORATION
    Inventor: Daniel Blaszkowiak
  • Patent number: 8828127
    Abstract: A regeneration controller for an air dryer on a vehicle includes a location identifier that determines a current location, a regeneration profile identifier that selects a regeneration profile based on the current location, and a regeneration initiator that initiates regenerations of the air dryer based on the regeneration profile.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: September 9, 2014
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: Nicholas A. Asmis
  • Patent number: 8795412
    Abstract: Methods for releasing associated guest materials from a metal organic framework are provided. Methods for associating guest materials with a metal organic framework are also provided. Methods are provided for selectively associating or dissociating guest materials with a metal organic framework. Systems for associating or dissociating guest materials within a series of metal organic frameworks are provided. Thermal energy transfer assemblies are provided. Methods for transferring thermal energy are also provided.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: August 5, 2014
    Assignee: Battelle Memorial Institute
    Inventors: B. Peter McGrail, Daryl R. Brown, Praveen K. Thallapally
  • Publication number: 20140208943
    Abstract: A fuel vapor removal method for an aircraft includes removing an ullage mixture from ullage of a fuel tank of an aircraft, exposing the ullage mixture to adsorption media on the aircraft to reduce its fuel-air ratio, and returning the reduced fuel-air ratio ullage mixture to the fuel tank. A fuel vapor removal system onboard an aircraft includes a fuel tank, having ullage containing an ullage mixture, a pumping device, configured to pump the ullage mixture in a closed loop from the fuel tank ullage and back, an adsorption system, interposed in the closed loop, and a controller, including a microprocessor and system memory. The adsorption system includes an adsorber having adsorption media capable of adsorbing fuel vapor from the ullage mixture, and the controller is programmed to activate the pumping device, to pump the ullage mixture from the ullage, through the adsorption system, and return a reduced fuel-air ratio ullage mixture back to the ullage.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 31, 2014
    Applicant: The Boeing Company
    Inventor: Alankar Gupta
  • Publication number: 20140202183
    Abstract: A method and apparatus are disclosed for controlling a concentration of carbon dioxide in a gaseous atmosphere within a closed environment of a refrigerated transport container to maintain the concentration of carbon dioxide therein at a desired level. A carbon dioxide scrubber apparatus operates alternately in an adsorption mode and a regeneration mode. When a perishable produce is stowed in the closed environment, for example in a cargo box of a refrigerated transport container, the concentration of carbon dioxide may be maintain at a desired level to retard ripening of the perishable produce.
    Type: Application
    Filed: July 11, 2012
    Publication date: July 24, 2014
    Applicant: Carrier Corporation
    Inventors: William C. Chadwick, Eric W. Adams, Catherine Thibaud-Erkey
  • Publication number: 20140174288
    Abstract: Apparatus and methods are disclosed that allow for the monitoring and analysis of production process data for a multi-step asynchronous cyclic production process (e.g. pressure swing adsorption) in a steady state plant (such as a steam methane reforming plant). Data collected from cooperating sensors is processed applying a moving window discrete Fourier transform (DFT). The transformed data can be further analyzed in the broader steady-state plant environment to accurately detect any process anomalies and avoid false alarms.
    Type: Application
    Filed: January 9, 2013
    Publication date: June 26, 2014
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Erdem Arslan, Debashis Neogi, Xianming Jimmy Li, Pratik Misra
  • Publication number: 20140165828
    Abstract: A dehydrator for dehydrating air supplied to a power related or mechanical device includes a first container configured to hold a desiccant, a first heater arranged with the first container configured to heat the desiccant in the first container, a second container configured to hold a desiccant, and a second heater arranged with the second container configured to heat the desiccant in the second container. The dehydrator further includes a conduit configured to selectively connect one of the first container and the second container to the power related or mechanical device and a controller configured to selectively operate one of the first heater and the second heater.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: WAUKESHA ELECTRIC SYSTEMS, INC.
    Inventors: Arthur MARTIN, John PRUENTE
  • Publication number: 20140137737
    Abstract: Described herein are various embodiments of an oxygen concentrator system that includes a home oxygen concentrator system couplable to a portable oxygen concentrator system.
    Type: Application
    Filed: October 14, 2013
    Publication date: May 22, 2014
    Applicant: INOVA LABS, INC., A DELAWARE CORPORATION
    Inventors: William R. Wilkinson, Dragan Nebrigic
  • Patent number: 8715394
    Abstract: Provided herein are methods and apparatus for capturing or otherwise decreasing the amount of CO2 in an exhaust stream. The separation process for removing CO2 from a waste stream preferably operates substantially at atmospheric pressure and at a preselected temperature, and without the need of thermal swing regeneration. This novel elimination of the heat up and cool down periods allows the inventive cycle herein to be run faster, and more efficiently than in previously known systems. Further, in some examples herein, the heat of adsorption is used to provide the heat of regeneration.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: May 6, 2014
    Inventors: Hugo S. Caram, Alberto I. LaCava
  • Publication number: 20140076164
    Abstract: Pressure swing adsorption purification unit (PSA unit) comprising: N adsorbers comprising N inlets and N outlets with N?2; at least one rotary distributor connected via N connections to the N inlets or to the N outlets of the N adsorbers; and characterised in that each of these N connections comprises a means for regulating a flow rate.
    Type: Application
    Filed: April 20, 2012
    Publication date: March 20, 2014
    Applicant: L'Air Liquide Société Anonyme pour I'Exploitation des Procédés Georges Claude
    Inventors: Christian Monereau, Bernard Saulnier
  • Publication number: 20140041521
    Abstract: A cyclic adsorption process is provided, the process containing one or more adsorber vessels undergoing the steps of at least pressurization and depressurization and driven by one or more variable speed centrifugal machines operating under acceleration and deceleration conditions and adjusted to the steps, vessel size, and process conditions employed, wherein the process cycle time is greater than the ratio of the change in inertia, defined the maximum energy that can be lost during a cycle due to inertia changes, to 0.3 times the total power of the one of more centrifugal machines that would be consumed in the absence of inertial effects.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Inventors: Paul W. Belanger, Michael S. Manning, Andrew C. Rosinski
  • Publication number: 20140033925
    Abstract: Agglomerate comprising a first phase change material (PCM) and a constituent having a density greater than 800 kg/m3 and forming the core of said agglomerate.
    Type: Application
    Filed: March 13, 2012
    Publication date: February 6, 2014
    Applicant: L'Air Liquide Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Vincent Gueret, Christian Monereau, pluton Pullumbi
  • Publication number: 20140030615
    Abstract: A hydrogen extraction system is provided. The extraction system can comprise a compressor for compressing a gas mixture comprising hydrogen and a desulfurization unit for receiving the compressed gas mixture. The system can also comprise a hydrogen-extraction device for receiving a reduced-sulfur gas mixture and a hydrogen storage device for receiving an extracted hydrogen gas. A method of extracting hydrogen from a gas mixture comprising natural gas and hydrogen, and a method of determining an energy price are also provided.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 30, 2014
    Applicant: NUVERA FUEL CELLS, INC.
    Inventors: Darryl Pollica, Scott Blanchet, Zhijiang Li
  • Publication number: 20140013955
    Abstract: Provided are encased parallel channel adsorbent contactor apparatus and systems and swing adsorption processes related thereto. Encased parallel channel adsorbent contactors are useful in swing adsorption processes. A plurality of the encased adsorbent contactors are loaded and sealed together in a swing adsorption vessel such that substantially an entire feed stream must pass through the channels of the contactors and not through stray gaseous stream paths between contactors.
    Type: Application
    Filed: February 27, 2012
    Publication date: January 16, 2014
    Inventors: Robert F. Tammera, Richard J. Basile, Jeffrey W. Frederick
  • Patent number: 8628608
    Abstract: A method and apparatus for regenerating the media of a rotary sorption concentrator system includes passing a 600° F. to 1000° F. regeneration fluid stream through a rotating media in a first isolated zone to regenerate the media and remove contaminants from the media that are not removed during a typical desorption cycle of a rotary sorption concentrator system.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: January 14, 2014
    Assignee: Munters Corporation
    Inventors: Christopher P. Jensen, Kevin Orff, Frank Giles, Paul A. Dinnage
  • Publication number: 20130333564
    Abstract: Systems and methods for producing a product gas are provided. In one embodiment, a plurality of gas separation assemblies separate adsorbable components from a gas source using a plurality of micro-pumps to create gas flow through the gas separation assemblies. Various embodiments include implementation of various pressure swing adsorbtion (PSA), vacuum swing adsorbtion (VSA), and vacuum pressure swing adsorbtion (VPSA) systems utilizing the gas separation assemblies with micro-pumps. In other embodiments, micro-pumps and micro-pump assemblies are arranged in various configurations capable of providing a range of pressures and flow rates.
    Type: Application
    Filed: March 8, 2013
    Publication date: December 19, 2013
    Applicant: Invacare Corporation
    Inventors: Samuel J. Shelnutt, William J. Daniels
  • Publication number: 20130333571
    Abstract: Provided are apparatus and systems having a rotary valve assembly and swing adsorption separation techniques related thereto. The methods utilize a rotary valve assembly to perform swing adsorption processes. The rotary valve assembly includes a feed stator having at least two annular tracks. Each of the annular tracks has an opening to permit fluid flow therethrough. A feed rotor is connected to the feed stator. The feed rotor has at least two annular tracks. Each of the annular tracks has an opening to permit gas to flow therethrough. A bed of adsorbent material may be connected to the feed rotor.
    Type: Application
    Filed: February 27, 2012
    Publication date: December 19, 2013
    Inventors: Narasimhan Sundaram, Richard A. Huntington
  • Patent number: 8603228
    Abstract: Described herein are various embodiments of an oxygen concentrator system In some embodiment, an oxygen concentrator system includes improved charging and battery control circuits.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: December 10, 2013
    Assignee: Inova Labs, Inc.
    Inventors: William R. Wilkinson, Allan Sten Westersten, Alaa Hassan
  • Publication number: 20130319246
    Abstract: A system and method recover water from an ambient airstream. Dehumidification of the airstream is also achieved by removal of the water. A device of the system includes a chamber having a group of trays that hold respective amounts of liquid desiccant in each tray. A foam media absorbs the desiccant to increase an exposed surface of the desiccant to the airstream. Fans and valves are used to control airflow through the device. A charge cycle circulates air through the device to remove water vapor from the airstream. A subsequent extraction cycle removes water collected in the liquid desiccant by a condenser communicating with the chamber. An integral heat exchanger adds heat to the chamber during the extraction cycle. A controller is used to integrate and manage all system functions and input variables to achieve a high efficiency of operational energy use for water collection.
    Type: Application
    Filed: October 25, 2012
    Publication date: December 5, 2013
    Applicant: Z124
    Inventors: James Ball, Charles Becze, Michael J. Flynn, Kean Wing Kin Lam, Richard Teltz
  • Publication number: 20130319244
    Abstract: A system and method recover water from an ambient airstream. Dehumidification of the airstream is also achieved by removal of the water. A device of the system includes a chamber having a group of trays that hold respective amounts of liquid desiccant in each tray. A foam media absorbs the desiccant to increase an exposed surface of the desiccant to the airstream. Fans and valves are used to control airflow through the device. A charge cycle circulates air through the device to remove water vapor from the airstream. A subsequent extraction cycle removes water collected in the liquid desiccant by a condenser communicating with the chamber. An integral heat exchanger adds heat to the chamber during the extraction cycle. A controller is used to integrate and manage all system functions and input variables to achieve a high efficiency of operational energy use for water collection.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 5, 2013
    Applicant: Z124
    Inventors: James Ball, Charles Becze, David Blatt, Michael Flynn, Richard Teltz
  • Patent number: 8597410
    Abstract: This invention provides a dynamic hydrogen-storage apparatus and the method thereof, which includes the following steps: (a) filling a container with a porous hydrogen-storage material which is loaded or doped with a catalyst; (b) setting an operational pressure and a pressure drop for the operation of storing hydrogen; (c) providing the hydrogen-storage material with a hydrogen so as to increase the pressure of the hydrogen to the operational pressure; (d) decreasing the pressure of the hydrogen by the pressure drop; and (e) repeating steps (c) and (d) for a predetermined amount of times.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: December 3, 2013
    Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive Yuan
    Inventors: Cheng-Hsiang Tung, Ming-Sheng Yu, Hsiu-Chu Wu, Huan-Hsiung Tseng
  • Patent number: 8562724
    Abstract: A pollutant removal system for use with a power generation system includes a particulate control device configured to remove particulates from a flue gas stream produced within the power generation system. The particulate control device is cleaned on a predetermined cleaning cycle. The pollutant removal system also includes a sorbent control system for controllably injecting a sorbent into the flue gas stream upstream of the particulate control device. The sorbent control system is configured to adjust a sorbent injection rate as a function of the cleaning cycle.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: October 22, 2013
    Assignee: General Electric Company
    Inventors: Peter Martin Maly, Robert Taylor, Vishal Bansal
  • Patent number: 8545603
    Abstract: The present invention provides for a method utilizing adsorber bed(s) and reversible blower(s) operating in a vacuum pressure swing adsorption separation process to separate gases. The process is designed to provide a safer and more cost-effective adsorption system that captures and utilizes energy typically wasted during equipment transitions thereby achieving overall higher power efficiency.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: October 1, 2013
    Assignee: Adsorptech Inc.
    Inventors: Apurva Maheshwary, John Robert Ambriano, James J Flaherty, Krishnamurti V Subramanian
  • Patent number: 8545604
    Abstract: A modular and compact adsorbent bed structure is disclosed for use in an adsorption-based gas separation plant. The conventional adsorbent bed in a gas separation plant is replaced with a plurality of modular adsorbent bed units connected to make the adsorbent bed structure. The modular design requires lower fabrication and maintenance costs; is easier to transport; and is easier to load with adsorbent material.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 1, 2013
    Assignee: Praxair Technology, Inc.
    Inventors: Ashwin Desai, Cem E. Celik, Mark William Ackley, James Smolarek
  • Patent number: 8535412
    Abstract: The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 17, 2013
    Assignee: RIC Investments, LLC
    Inventor: Joseph T. Dolensky
  • Publication number: 20130225898
    Abstract: A process for separating methane from a natural gas mixture employs pressure swing adsorption in one or more vessels. Each vessel has an adsorbent material having a kinetic selectivity for contaminants over methane greater than 5. Contaminants within the natural gas mixture become gases kinetically adsorbed within the adsorbent material. The vessel is placed under pressure to cause contaminants to be adsorbed in the surfaces and micro-pores of the adsorbent material. The process includes releasing a product stream comprised at least 95% by volume methane from a first gas outlet in the vessel, and desorbing the contaminant gases from the adsorbent material by reducing the pressure within the vessel. The desorbing step is done without applying heat to the vessel, thereby delivering a waste gas stream comprised at least 95% by volume of the contaminant gases. An improved fractionation vessel having both major and minor flow channels is also provided.
    Type: Application
    Filed: September 26, 2011
    Publication date: August 29, 2013
    Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY
    Inventors: Narasimhan Sundaram, P. Scott Northrop
  • Publication number: 20130199369
    Abstract: A cyclic adsorption process is provided, the process containing one or more adsorber vessels undergoing the steps of at least pressurization and depressurization and driven by one or more variable speed centrifugal machines operating under acceleration and deceleration conditions and adjusted to the steps, vessel size, and process conditions employed, wherein the process cycle time is greater than the ratio of the change in inertia, defined the maximum energy that can be lost during a cycle due to inertia changes, to 0.3 times the total power of the one of more centrifugal machines that would be consumed in the absence of inertial effects.
    Type: Application
    Filed: February 8, 2012
    Publication date: August 8, 2013
    Inventors: Paul W. Belanger, Michael S. Manning, Andrew C. Rosinski
  • Publication number: 20130192464
    Abstract: A regeneration controller for an air dryer on a vehicle includes a location identifier that determines a current location, a regeneration profile identifier that selects a regeneration profile based on the current location, and a regeneration initiator that initiates regenerations of the air dryer based on the regeneration profile.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Applicant: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC
    Inventor: Nicholas A. Asmis
  • Publication number: 20130152783
    Abstract: A ductless fume hood suitable for the removal of various chemical materials including toxic and non-toxic gases, vapors, particles, dust and unpleasant odors from a fluid stream. The ductless fume hood uses electronic devices and software to enable real time monitoring of gas levels in parts per million.
    Type: Application
    Filed: February 12, 2013
    Publication date: June 20, 2013
    Inventor: Gregory J. Dobbyn
  • Publication number: 20130055899
    Abstract: A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 7, 2013
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Katsuhiko MAKINO
  • Publication number: 20130047842
    Abstract: High volumetric-efficiency thermally integrated systems for capturing a target gas from a process gas stream include a monolithic body and a distribution system. The monolithic body includes a first plurality of channels and a second plurality of channels each having sorbent surfaces that reversibly adsorb the target gas. The channels are in thermal communication such that heat from an exothermic adsorption of target gas in one plurality of channels is used by an endothermic desorption of target gas from the other plurality of channels. Methods for separating a target gas from a process gas stream include switching the high volumetric-efficiency thermally integrated systems between a first state and a second state. In the first state, the first plurality of channels undergoes desorption while the second undergoes adsorption. In the second state, the second plurality of channels undergoes desorption while the first plurality undergoes adsorption.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventors: Amit Halder, Steven Bolaji Ogunwumi
  • Publication number: 20130036904
    Abstract: The present invention relates generally to a composite adsorbent comprising at least a zeolite-containing CO2 removal adsorbent and 10% or more of a metal oxide having a heat capacity of at least 20 cal/mol-° K (83.7 J/(mol·K). The composite is preferably used in a multi-layered adsorption system in a cyclic adsorption process. The adsorption system comprises two or more layers wherein the first layer is at least a water vapor removal adsorbent, such as activated alumina, and the second layer is the novel composite adsorbent. The adsorption system is preferably used in a PSA prepurification process prior to cryogenic air separation.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Inventors: JIAN ZHENG, Neil Andrew Stephenson, Philip Alexander Barrett
  • Publication number: 20120325085
    Abstract: A cyclic adsorption process is provided, the process containing one or more adsorber vessels undergoing the steps of at least pressurization and depressurization and driven by one or more variable speed centrifugal machines operating under acceleration and deceleration conditions and adjusted to the steps, vessel size, and process conditions employed, wherein the process cycle time is greater than the ratio of the change in inertia, defined the maximum energy that can be lost during a cycle due to inertia changes, to 0.3 times the total power of the one of more centrifugal machines that would be consumed in the absence of inertial effects.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 27, 2012
    Inventors: PAUL W. BELANGER, MICHAEL S. MANNING, ANDREW C. ROSINSKI
  • Patent number: 8328904
    Abstract: An active wheel desiccant dehumidifier is controlled for improved energy savings by modulating operation characteristics including process air flow, reactivation air flow, temperatures, and wheel rotation in response to changing conditions.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 11, 2012
    Assignees: Bry-Air, Inc., Bry-Air (Asia) Pvt. Ltd.
    Inventors: William C. Griffiths, Deepak Pahwa, Rajan Sachdev
  • Patent number: 8328913
    Abstract: A flammable gas concentration system is described, which includes a concentrating apparatus for acquiring at least a portion of the product gas, concentrating the flammable gas included in the acquired product gas, and generating a high-concentration gas; and a mixer for acquiring the raw gas and the high-concentration gas generated by the concentrating apparatus, mixing the acquired high-concentration gas and the raw gas, and generating the product gas.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: December 11, 2012
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Etsuo Shito, Katsuhiko Hirao, Kenji Seki
  • Patent number: 8262771
    Abstract: A flammable gas concentration device comprises an adsorption tower filled by an adsorbent for adsorbing a flammable gas. Raw gas containing air and a flammable gas is fed to the adsorption tower via a feeding path and an exhaust gas in the raw gas which has not been adsorbed to the adsorbent is discharged to an outside of the adsorption tower via a discharge path. Pressure in the adsorption tower is reduced lower than an atmospheric pressure, and the flammable gas adsorbed by the adsorbent is desorbed and collected through a collection path. A flammable gas adsorption step of feeding the raw gas to the adsorption tower and discharging the exhaust gas from the adsorption tower, and a flammable gas desorption step of collecting the desorbed flammable gas are sequentially executed.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: September 11, 2012
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Kenji Seki, Etsuo Shito, Katsuhiko Hirao
  • Publication number: 20120222410
    Abstract: A pollutant removal system for use with a power generation system includes a particulate control device configured to remove particulates from a flue gas stream produced within the power generation system. The particulate control device is cleaned on a predetermined cleaning cycle. The pollutant removal system also includes a sorbent control system for controllably injecting a sorbent into the flue gas stream upstream of the particulate control device. The sorbent control system is configured to adjust a sorbent injection rate as a function of the cleaning cycle.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 6, 2012
    Inventors: Peter Martin Maly, Robert Taylor, Vishal Bansal
  • Patent number: 8192525
    Abstract: The invention relates to a method for producing carbon monoxide consisting, during an adsorption step, in using N adsorbers (4A, 4B), wherein N is equal to greater than two, each of which follows, at an offset; the same period T cycle during which adsorption and regeneration phases succeed each other, in exposing, at the beginning of the adsorption phase, each adsorber to an eluting phase during which only a part of a nominal flowrate of the mixture is transferred to the adsorber until said adsorber is substantially carbon monoxide saturated while at least the second adsorber is maintained in the adsorption phase and a purified gaseous mixture is partially liquefied for producing a liquefied gaseous mixture, in storing said mixture in a capacity (7) and in transferring the liquefied gaseous mixture from the capacity to at least one column (11) for the separation thereof into a carbon monoxide rich product and, during at least one part of the adsorber eluting phases, the liquid level in the container is decrea
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: June 5, 2012
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude Et l'Exploration des Procedes Georges Claude
    Inventors: Guillaume Teixeira, Jean-Marc Peyron, Jean-François Rauch, Natacha Haik-Beraud, Jean Billy
  • Publication number: 20120125194
    Abstract: Provided herein are methods and apparatus for capturing or otherwise decreasing the amount of CO2 in an exhaust stream. The separation process for removing CO2 from a waste stream preferably operates substantially at atmospheric pressure and at a preselected temperature, and without the need of thermal swing regeneration. This novel elimination of the heat up and cool down periods allows the inventive cycle herein to be run faster, and more efficiently than in previously known systems. Further, in some examples herein, the heat of adsorption is used to provide the heat of regeneration.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Applicant: LEHIGH UNIVERSITY
    Inventors: Hugo S. Caram, Alberto I. LaCava
  • Publication number: 20120103187
    Abstract: Dehumidifier for photovoltaic modules, of a series of photovoltaic concentration modules, formed by a common air inlet and outlet access that communicates all the modules, and which passes through a bed of moisture absorbing material, having an electrical self-adjusted resistance (15) installed therein. The circuit is completed with a solenoid valve (13), a flow switch (19), a non-return valve (12); a pressure switch (16) and a timer relay (20). The process is based on pressure differences existing within the photovoltaic modules throughout the day, and consists of two steps: drying air by passing through the bed of absorbent material before entering into the photovoltaic modules and the regeneration of the drying system, which can be automatically or manually by connecting a compressor or fan.
    Type: Application
    Filed: May 4, 2010
    Publication date: May 3, 2012
    Applicant: ABENGOA SOLAR NEW TECHNOLOGIES, S.A.
    Inventors: Javier Roa Fresno, Alvaro Rayan Rodriguez
  • Publication number: 20120055340
    Abstract: Described herein are various embodiments of an oxygen concentrator system In some embodiment, an oxygen concentrator system includes improved charging and battery control circuits.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 8, 2012
    Inventors: William R. Wilkinson, Allan Sten Westersten, Alaa Hassan
  • Patent number: 8118912
    Abstract: Embodiments of the invention include a system and a method for purifying and storing water produced from atmospheric air to provide a safe, inexpensive source of potable water. Improvements over prior systems and methods include the use of two isolated air chambers, one for ambient air used to capture moisture from the atmosphere, and another for clean rechargeable air to convert the captured moisture into condensate and using a rotating mass of hygroscopic material and a condensation unit, each of which is periodically sterilized by heat.
    Type: Grant
    Filed: September 5, 2009
    Date of Patent: February 21, 2012
    Inventors: Felix Rodriguez, Nizar K. Khanji
  • Publication number: 20120031273
    Abstract: An air processing device for a utility vehicle includes a compressor and two air dryer cartridges. The air dryer cartridges are located in two parallel paths. A control unit controls a regeneration of one of said air dryer cartridges independent from a load phase of the other of said air dryer cartridges.
    Type: Application
    Filed: July 14, 2011
    Publication date: February 9, 2012
    Applicant: HALDEX BRAKE PRODUCTS GMBH
    Inventor: Siegfried Heer
  • Publication number: 20120012005
    Abstract: Regenerative air dryers are disclosed for feeding pressurized air with a controlled moisture content to a header. In one embodiment, a dryer comprises first and second chambers alternating between drying and regenerating phases. One of the chambers is at the drying phase while the other is at the regenerating phase. A controller is programmed to switch the phase of the chambers between drying and regenerating when the desiccant in the chamber at the drying phase has retained water to a predetermined capacity. A bypass line bypasses both chambers. An input provides air to the chamber at the drying phase and to the bypass line. A dew point feedback system controls a volume of air passing through the bypass line. Means are included for combining air from the bypass line with air exiting the chamber at the drying phase to provide air with a controlled dew point to the header.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 19, 2012
    Inventor: Nicholas Edward Burke