Including Production Of Withdrawable Product Or Steam For External Use Patents (Class 60/648)
  • Patent number: 10424416
    Abstract: According to an aspect, a vapor powered apparatus for generating electric power includes a liquid chamber that contains a working fluid and a first heat exchanger that transfers heat from fluid coming from a heat source to working fluid coming from the liquid chamber, where the transferred heat vaporizes at least a portion of the working fluid to provide a working pressure of the vaporized working fluid. The apparatus includes a pressure motor to convert the working pressure of the vaporized working fluid into mechanical motion for a power generator. The apparatus includes a vapor chamber to capture the vaporized working fluid and a second heat exchanger to use working fluid from the liquid chamber to condense the captured vaporized working fluid. An exchanger fluid system provides the working fluid to the second heat exchanger from a bottom portion of a pool of working liquid in the liquid chamber.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 24, 2019
    Inventor: George Erik McMillan
  • Patent number: 10072530
    Abstract: A hybrid power generation system using solar energy and bioenergy, including a solar thermal boiler system, a biomass boiler system, and a turbogenerator system. The solar thermal boiler system includes a trough solar collector, a heat collector, an oil circulating pump, a storage tank for storing heat transfer oil, a solar thermal heater, a solar thermal evaporator, a main pipe transporting saturated steam, and an auxiliary boiler. Heat transfer oil output from a solar light field of the solar thermal boiler system is transmitted through and transfers heat to the solar thermal evaporator and the solar thermal heater, and the heat transfer oil returns to the storage tank for storing heat transfer oil. The heat transfer oil in the storage tank is pumped to the solar light field via the oil circulating pump.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: September 11, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Yanfeng Zhang, Wenyan Liu
  • Patent number: 10053374
    Abstract: In one embodiment, a water desalination and power generation system includes a power generation subsystem, a water desalination subsystem, and an ejector that links the power generation subsystem and the water desalination subsystem, the ejector being adapted to entrain working fluid steam that has exited the water desalination subsystem into working fluid steam that has exited the power generation subsystem to generate mixed steam that drives the water desalination subsystem.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: August 21, 2018
    Assignee: University of South Florida
    Inventors: Chennan Li, D. Yogi Goswami, Elias K. Stefanakos
  • Patent number: 10036589
    Abstract: An apparatus and a method for cooling and compressing a fluid to produce a low-temperature compressed fluid that can efficiently use the cold of LNG and reduce the energy needed, the apparatus using a Rankine cycle system having a first compression device, a first heat exchanger, an expansion device, a second heat exchanger, and a first flow passageway for guiding the heat transfer medium from the second heat exchanger to the first compression device; and at least one second compression device that is coupled to the expansion device, wherein at the second heat exchanger, a low-temperature LNG and the heat transfer medium undergo heat transfer, wherein at the first heat exchanger, a fed material gas and the heat transfer medium undergo heat transfer to produce a low-temperature fluid from the material gas, and the low-temperature fluid is compressed at the second compression device to produce a low-temperature compressed fluid.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 31, 2018
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Kenji Hirose, Shinji Tomita
  • Patent number: 10018383
    Abstract: The present invention relates to a triple-effect absorption chilling apparatus adopting a structure of an anti-parallel cycle in which an absorber and a first regenerator are connected in series, a second regenerator and a third regenerator are connected in parallel with the first regenerator, and the solution through the second regenerator and the third regenerator is returned to the absorber. Therefore, according to the present invention, it is possible to improve efficiency by acquiring a higher coefficient of performance than conventional absorption refrigerators, and to reduce energy consumption.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: July 10, 2018
    Inventors: Hyo Sang Kim, Si Young Jeong, Sung Min Woo, Su Yong Lee
  • Patent number: 9777961
    Abstract: A method and a plant for producing liquid CO2 from flue gas as described with reduced energy consumption and a stable behavior.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: October 3, 2017
    Assignee: General Electric Technology GmbH
    Inventor: Olaf Stallmann
  • Patent number: 9726327
    Abstract: The present invention relates to liquefied gas treatment system and method, and the liquefied gas treatment system includes: a liquefied gas supply line connected from a liquefied gas storing tank to a source of demand; a heat exchanger provided on the liquefied gas supply line between the source of demand and the liquefied gas storing tank, and configured to heat exchange liquefied gas supplied from the liquefied gas storing tank with heat transfer media; a media heater configured to heat the heat transfer media; a media circulation line connected from the media heater to the heat exchanger; a media state detecting sensor provided on the media circulation line, and configured to measure a state of the heat transfer media; and a controller configured to set a coagulation prevention reference value for preventing the heat transfer media from being coagulated, and change a flow rate of the heat transfer media flowing into the media heater or calories supplied to the heat transfer media by the media heater on th
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: August 8, 2017
    Assignee: Hyundai Heavy Industries Co., Ltd.
    Inventors: Ki Hong Kim, Min Ho Kang
  • Patent number: 9657987
    Abstract: An apparatus for compressing air and producing a carbon dioxide-rich fluid includes an air compressor, an element for bringing the air bound for the air compressor into contact with water to produce humidified air and cooled water, a pipe for sending the humidified compressed air from the air compressor to an installation producing a carbon dioxide-rich gas, a carbon dioxide-rich gas compressor for compressing the carbon dioxide-rich gas, at least one heat exchanger upstream and/or downstream the carbon dioxide-rich gas compressor and pipes for conveying into the heat exchanger water cooled in the contact element and the carbon dioxide-rich gas.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: May 23, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Benoit Davidian, Jean-Pierre Tranier
  • Patent number: 9631520
    Abstract: Provided is a steam turbine system including: at least one high pressure turbine, and/or at least one intermediate pressure turbine, and at least one first low pressure turbine, mounted on a first rotary shaft that is coupled to drive at least one first electrical generator; and at least one further low pressure turbine, mounted on a further rotary shaft that is coupled to drive at least one further electrical generator; and the turbine system further including a steam supply system to supply low pressure steam to the low pressure turbines provided with a steam outlet to enable extraction of auxiliary process steam from a location in the steam supply system upstream of the further low pressure turbine but not upstream of the first low pressure turbine.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: April 25, 2017
    Assignee: DOOSAN BABCOCK LIMITED
    Inventor: Pramurtta Shourjya Majumdar
  • Patent number: 9567974
    Abstract: Control device for hydraulic turbines configured to adjust the resistant torque provided by the generator to the movement of the impeller of an hydraulic turbine so that a stable pressure is set at the inlet (Pi) and at the outlet (Po) regardless of the circulating flow rate (Q), and to adjust the electrical energy produced by the turbine to achieve the desired hydraulic behavior, the device comprising a controller and a power device; wherein said controller is connected to a pressure detector at the inlet (Pi) and at the outlet (Po) and to a flow-meter for obtaining the circulating flow rate (Q), as well as to a power sensor for measuring the power of the turbine; all this, in such a way that the controller acts on the power device for causing the application of the braking torque necessary to maintain a stable set-point value on the turbine.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: February 14, 2017
    Assignee: TECNOTURBINES, S.L.
    Inventors: Vicente Ruiz Gomis, Joaquin Orts Paredes, Jaime Lledo Lara, Jose Carlos Orts Paredes
  • Patent number: 9500158
    Abstract: A thermal engine includes a cylinder and piston and an insulated thermal battery including at least a thermal mass such as the engine block itself for storing and retaining heat to enhance or cause fluid expansion within the cylinder and drive the piston, the thermal battery optionally including an electrolyte chamber containing a thermal electrolyte for functioning as an electric thermal battery. Heat is stored in the thermal battery such as by activating electric resistance heating elements in the thermal mass. The stored heat either causes expansion of a non-combustible expansion fluid such as water or enhances the expansion of a combustible expansion fluid such as gasoline. Where the thermal battery is an electric thermal battery containing an electrolyte, the storage of heat also stores electricity which can be used to power an electric motor.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 22, 2016
    Inventor: Michael Anthony
  • Patent number: 9488367
    Abstract: A specific electrical generator powered by an external combustion steam engine that functions through the initial combustion of various potential fuel sources to consequently generate steam from an internal working fluid that drives an electric motor or alternator to generate electricity is provided. The steam is then condensed to return to its liquid form in order to again be heated into steam through further combustion. The all-in-one electric generator combusts the fuel provided within the generator and incinerates such fuel in a manner and in an environment to effectively eliminate the potential for appreciable resultant levels of nitrogen and/or sulfur oxides. The combustion fuel may be any type of material, such as used vehicle or equipment oil, waste vegetable or cooking oil, diesel, gasoline, syngases, natural gases, and the like.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: November 8, 2016
    Assignee: Phoenix Power Group, LLC
    Inventor: Thomas V. Thillen
  • Patent number: 9469820
    Abstract: A method for recycling carbon dioxide from biomass gasification. The method includes: 1) employing carbon dioxide as a gasifying agent, allowing the carbon dioxide to gasify biomass to yield syngas; 2) cooling the syngas; 3) introduced cooled syngas to a cyclone separator and a gas scrubber for dust removal and purification; 4) allowing purified syngas in 3) to react with the vapor to modify a ratio of hydrogen to carbon monoxide of the syngas; 5) desulfurizing modified syngas to remove H2S and COS therein; 6) decarburizing desulfurized syngas to separate carbon dioxide therein; 7) introducing desulfurized and decarburized syngas to a synthesizing tower to yield oil products and exhaust gas including carbon dioxide; 8) decarburizing the exhaust gas including carbon dioxide and separating the carbon dioxide; and 9) introducing the carbon dioxide separated in 6) and 8) to 1) as the gasifying agent for gasification.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 18, 2016
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Liang Zhang, Minggui Xia, Wenyan Liu
  • Patent number: 9410736
    Abstract: The systems and methods integrate energy storage with cryogenic carbon capture, providing effective grid management and energy-efficient carbon capture capabilities to power plants. The systems store energy during off-peak demand by using off-peak energy to compress natural gas to form liquefied natural gas (LNG) and storing the LNG for use as a refrigerant. The systems use the stored LNG as a refrigerant in a cryogenic carbon capture (CCC) process to isolate carbon dioxide from light gases in a flue gas. The systems supply energy during peak demand by burning the natural gas warmed by the CCC process to generate power.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: August 9, 2016
    Assignee: SUSTAINABLE ENERGY SOLUTIONS, LLC
    Inventor: Larry L. Baxter
  • Patent number: 9233336
    Abstract: A carbon dioxide recovery system includes a high-pressure 11, a boiler 15, a carbon dioxide recovery unit 24 that includes a carbon dioxide absorber 21 that absorbs and reduces carbon dioxide in flue gas G emitted from the boiler 15 using a carbon dioxide absorbent and an absorbent regenerator 23 that regenerates a carbon dioxide absorbent having absorbed the carbon dioxide using a regenerating superheater 22 to obtain a regenerated carbon dioxide absorbent, a high-temperature and high-pressure steam extraction line L11 that extracts the high-temperature and high-pressure steam 14 from the boiler 15 before the steam is introduced into the high-pressure turbine 11, an auxiliary turbine 32 that recovers power with the high-temperature and high-pressure steam 14, and a steam supply line L12 that supplies emission steam 33 emitted from the auxiliary turbine 32 to the regenerating superheater 22 to be used as a heat source.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: January 12, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Masaki Iijima
  • Patent number: 9187369
    Abstract: A process and an installation for production of clinker and electricity, and a process for modifying a production installation of clinker are presented.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: November 17, 2015
    Assignee: LAFARGE
    Inventors: Michel Gimenez, Franck Leroy
  • Patent number: 9151184
    Abstract: A heat exchanger includes an enclosure having a separator disposed therein that divides the heat exchanger into a mixing area and a heat exchange area. The mixing area is configured to receive a hot fume and droplets of a liquid for mixing with each other to form a fume-droplet vapor mixture. The mixture is configured to flow through orifices of the separator into the heat exchange area. A plurality of magazines is disposed within the heat exchange area of the first enclosure. Each magazine defines a cavity. The cavities are disposed in communication with one another. A lower-most magazine is configured to receive a receiver medium that is pumped through the cavity of each successive magazine to an upper-most magazine. The mixture is configured to circulate about the magazines to incrementally heat the receiver medium as the receiver medium is pumped through the cavity of each successive magazine.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 6, 2015
    Inventor: Mosi Chu
  • Patent number: 9057288
    Abstract: A combined cycle power plant system and methods of operation so as to minimize consumption of cooling water utilizes exhaust from a combustion turbine to generate steam for power generation in a steam turbine topping cycle. The exhaust steam from the steam turbine topping cycle is utilized to vaporize an organic working fluid in an organic working fluid bottoming cycle, where vaporized organic working fluid expanded across a turbine generates additional power. Exhaust gas from the organic working fluid bottoming cycle is condensed utilizing an air-cooled heat exchanger. Heat exchange bundles of the air-cooled heat exchanger are preferably arranged horizontally relative to the ground to maximize efficiency. Turbine inlet cooling is employed at the combustion turbine to recapture energy lost in the system. A thermal energy storage tank may be utilized in conjunction with the turbine inlet cooling to supply chilling water to the system.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: June 16, 2015
    Assignee: TAS Energy, Inc.
    Inventors: Thomas L. Pierson, Herman Leibowitz
  • Patent number: 9046218
    Abstract: Methods and apparatus for offloading CNG from high-pressure storage vessels (22) are provided. The methods and apparatus are operable to warm the offloaded CNG either before or after a letdown in pressure to ensure that the delivered product is gaseous and that delivery of condensed products to downstream equipment is avoided. Particularly, a heating assembly (32) configured to warm a stream offloaded from a vessel (22) and flowing through a coil-shaped conduit (84) by infrared energy emitted by one or more heating elements (70) is provided upstream or downstream of a pressure reduction device (50).
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 2, 2015
    Inventors: Virgil Macaluso, Corey Lowdon
  • Patent number: 8999146
    Abstract: Hydrocarbon feed to a catalytic reactor can be heat exchanged with flue gas from a catalyst regenerator. This innovation enables recovery of more energy from flue gas thus resulting in a lower flue gas discharge temperature. As a result, other hot hydrocarbon streams conventionally used to preheat hydrocarbon feed can now be used to generate more high pressure steam.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: April 7, 2015
    Assignee: UOP LLC
    Inventors: Yunbo Liu, Xin X. Zhu, Daniel N. Myers, Patrick D. Walker
  • Patent number: 8950196
    Abstract: Contemplated power plants and LNG regasification facilities employ a combination of ambient air and non-ambient air as continuous heat sources to regasify LNG and to optimize power production. Most preferably, contemplated plants and methods are operable without the need for supplemental heat sources under varying temperature conditions.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: February 10, 2015
    Assignee: Fluor Technologies Corporation
    Inventor: John Mak
  • Publication number: 20150027120
    Abstract: A device for capture of acid gas of combustion fumes of a thermal power plant, including: absorption means (10) of the gas by capture fluid, a regenerator (1) where the capture fluid and a regeneration fluid steam are put in contact, introduction means (11) of the regeneration fluid in the regenerator, condensation means (2, 3, 4), at the head of said regenerator, separation means (6) of liquid phase of the regeneration fluid and gaseous phase rich in acid gas, Wherein: the regeneration fluid steam introduced is superheated, the regenerator (1) includes means limiting the contact time to substantially maintain the flow rate of regeneration fluid steam, the condensation means (2, 3, 4) are in thermal exchange with first evaporation means of working fluid, and first reintroduction means (13) of steam obtained in a turbine (14).
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventor: Yann Le Moullec
  • Publication number: 20140366539
    Abstract: A system and methods for power generation uses non-aqueous solvent. The method includes treating oil sands with a non-aqueous solvent to extract bitumen in an extraction process and separating the non-aqueous solvent from the bitumen in a solvent recovery process. The method also includes heating the non-aqueous solvent, expanding the non-aqueous solvent to generate power, and cooling the non-aqueous solvent. The method further includes recycling at least a portion of the non-aqueous solvent to the extraction process.
    Type: Application
    Filed: November 16, 2012
    Publication date: December 18, 2014
    Inventors: Douglas W. Hissong, O. Angus Sites
  • Publication number: 20140360204
    Abstract: The present techniques are directed to systems and a method for extracting a high pressure gas from a power plant. A method includes providing a fuel to a burner, and providing an oxidant to the burner, wherein an oxidant flow rate is adjusted to provide a substantially stoichiometric ratio of the oxidant to the fuel. The fuel and the oxidant are combusted in the burner to produce an exhaust gas. At least a portion of the exhaust gas is extracted downstream of the burner to form a product gas.
    Type: Application
    Filed: May 15, 2014
    Publication date: December 11, 2014
    Inventor: Srinivas N. Moorkanikkara
  • Patent number: 8904789
    Abstract: The invention relates to a method for generating energy by means of thermal cycles with high pressure and moderate temperature steam, which allows improving the energy and operational efficiency of the conversion of heat energy into mechanical or electrical energy by means of thermal cycles in which the temperature of the steam is limited to moderate values in its generation, comprising the following steps: a) generating steam at a pressure above 65 bar and a moderate temperature below 400° C., b) expanding said steam in a steam turbine, steam of an intermediate pressure, comprised between 10-40 bar, with a moderate moisture, below 15%, being obtained c) drying said steam by means of a moisture separator and reheating said steam, d) expanding said steam in the turbine, and e) heating boiler water used to generate the steam by means of a plurality of steam extractions from the turbine, in order to exchange heat with said boiler water.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: December 9, 2014
    Assignee: Sener Grupo de Ingenieria, S.A.
    Inventors: JoséMaría Menéndez Salcedo, Jerónimo Angulo Aramburu
  • Patent number: 8899045
    Abstract: Before being fed into a pipe, particularly a network of pipes for the supply of consumers, gas, preferably natural gas, is continuously conditioned. The pressurized gas is removed from a reservoir, expanded, and heated to a predefined temperature before or after the expansion thereof in that a branched-off partial flow of the fed-out natural gas is mixed with oxygen and the resulting burnable gas is catalytically burned. The fed-out gas is heated with the thermal energy that is produced. For this purpose, a partial exhaust gas flow is branched off from a hot exhaust gas flow released during the catalytic combustion and conducted into a first container together with the cold burnable gas.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 2, 2014
    Assignee: EWE Gasspeicher GmbH
    Inventor: Andreas Lenk
  • Publication number: 20140318129
    Abstract: The invention relates to a combustion chamber for burning an air-fuel mixture, a gas mixture or a gas-liquid mixture, including an outer casing; a flame tube located inside the outer casing and provided with an inner space, whereby the outer casing and the flame tube form an annular channel therebetween, the flame tube including flow apertures which penetrate through its casing and interconnect the annular channel and the inner space of the flame tube; a cover part arranged in inlet ends of the outer casing and the flame tube and provided with flow apertures opening up into the annular channel; a combustion air inlet part which is arranged in an outer surface of the cover part and which is in connection with the flow apertures of the cover part; a fuel jet located in the cover part and extending inside the flame tube for feeding fuel into the flame tube.
    Type: Application
    Filed: November 22, 2012
    Publication date: October 30, 2014
    Inventor: Markus Viitamäki
  • Publication number: 20140318130
    Abstract: Cogeneration method, according to which a hot source (2) produces steam that is released in at least one turbine (3) having a low-pressure steam outlet (5) linked to a condenser; at least a fraction (Q) of the steam leaving the turbine (3) is directed towards a Venturi thermocompressor (14) into which a fluid having higher pressure and temperature than the outgoing steam is injected, resulting in a fluid having higher pressure and temperature than the outgoing steam, and this mixture is directed towards a second condenser (21) where the heat of the mixture is transferred to an auxiliary fluid of a circuit (23) external to the thermodynamic cycle.
    Type: Application
    Filed: December 18, 2012
    Publication date: October 30, 2014
    Inventor: Frederic Duong
  • Publication number: 20140283517
    Abstract: A system reclaiming contaminated water includes a heat exchanger that receives the contaminated water and converts at least a portion of the contaminated water into steam and collects at least a portion of the contaminants within the heat exchanger. A thermal transfer fluid is heated by a heat exchanger is communication with a heat source. The heated fluid is circulated through the heat exchanger to heat the contaminated water. A steam engine is coupled to a generator, the steam engine receives the steam from the heat exchanger to drive the generator to provide power for the system. Steam exhausted from the steam engine is supplied to supplemental heat loads and then condensed in a modular condensing system. The collected contaminants are directed to an evaporation device to remove residual liquid.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 25, 2014
    Applicant: Morningside Venture Investments Limited
    Inventor: Frank Schubert
  • Publication number: 20140260251
    Abstract: Systems and methods for the generation of liquid natural gas (“LNG”) are provided.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Bret Shapot, Devendra Agrawal, John Ray, Eric Southward
  • Patent number: 8833081
    Abstract: Systems for regenerating an absorbent solution include steam produced by a boiler; a set of pressure turbines fluidly coupled to the boiler for receiving the steam, wherein the set of pressure turbines comprises a high pressure turbine, a medium pressure turbine and a low pressure turbine; and a regenerating system comprising a regenerator for regenerating a rich and/or semi-rich absorbent solution to form a lean absorbent solution in fluid communication with a reboiler, the regenerating system fluidly coupled to the set of pressure turbines, wherein steam from the low pressure turbine provides a heat source for preheating the rich or the semi-rich absorbent solution fed to the regenerator. Also disclosed are processes of use.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 16, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Daniel Nicolaus Secundus Mattstedt, Joseph P. Naumovitz, Sanjay Kumar Dube
  • Patent number: 8806870
    Abstract: According to one embodiment, a carbon-dioxide-recovery-type thermal power generation system includes an absorption column allows carbon dioxide contained in exhaust gas from a boiler to be absorbed in an absorption liquid, a regeneration column that discharges a carbon dioxide gas from the absorption liquid supplied from the absorption column, a reboiler that heats the absorption liquid discharged from the regeneration column and supplies steam generated, to the regeneration column, a condenser that generates condensate by cooling the steam exhausted from a turbine, a heater that heats the condensate, a water supply pump that supplies the condensate to the boiler, a line through the steam extracted from the turbine is supplied to the reboiler and the heater, and a steam flow rate adjusting unit. The steam flow rate adjusting unit maintains an amount of steam, which is extracted from the turbine through the line, to be constant.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: August 19, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhiko Hirata, Hideo Kitamura, Takashi Ogawa, Yukio Ohashi
  • Publication number: 20140208752
    Abstract: Method and apparatus for operating a combined heat and power system with greater flexibility, reliability, control and stability, for providing operational flexibility and energy efficiency in operating a combined heat and power plant which includes a backpressure steam engine that expands a high temperature heat source of a thermodynamic fluid to generate mechanical power and discharge its spent heat for a beneficial use comprises a vessel subsystem for the spent heat, said vessel subsystem including: at least one main indirect heat exchange device or vessel (7) in heat exchange communication between its primary space (10) and its secondary space (11). The present invention also discloses the use of a method and apparatus to operate a combined heat and power system.
    Type: Application
    Filed: February 3, 2012
    Publication date: July 31, 2014
    Inventor: Krishna Moorthy Palanisamy
  • Patent number: 8783036
    Abstract: A system includes a syngas cooler configured to cool a syngas. The syngas cooler includes a first syngas cooler section configured to cool the syngas and a second syngas cooler section configured to cool the syngas and generate a first superheated steam with an enthalpy of less than approximately 3800 kJ/kg.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 22, 2014
    Assignee: General Electric Company
    Inventors: Judeth Brannon Corry, Leroy Omar Tomlinson, James Michael Storey, Paul Stephen Dimascio, Mark Joseph Steffen, Wei Chen, Benjamin Campbell Steinhaus, Richard Anthony De Puy
  • Patent number: 8776520
    Abstract: A method for operating a steam power station is provided. The steam turbine power station includes at least one steam turbine and a process steam consumer, wherein a steam mass flow is subdivided into a first partial mass flow and a second partial mass. In a first operating state, the first partial mass flow is supplied to the steam turbine and the second partial mass flow is supplied to the process steam consumer. In a second operating state, at least part of the second partial mass flow is supplied to the steam turbine at least after the first turbine stages. A steam power station is also provided.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: July 15, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ulrich Beul, Stefan Glos, Matthias Heue, Thomas Hofbauer, Ralf Hoffacker, Nils Lückemeyer, Norbert Pieper, Roland Sievert
  • Patent number: 8707697
    Abstract: A systems design is disclosed which converts Geopressured-Geothermal (GPGT) brine into saturated brine in concert with the production of electricity from GPGT brine energy. The design integrates a GPGT conversion system which super-concentrates a portion of the GPGT brine, utilizing that portion's thermal energy, with a system designed to produce electricity from the remainder of GPGT brine energy. The end-brine from the electricity producing system is concentrated (sub-saturated) in a spray evaporation pond, which serves as a heat sink for both systems, and is combined with the super-saturated product brine from the GPGT conversion system, resulting in a saturated brine end-product. The saturated brine can be used for beneficial purposes, including for use as bulk material in the construction of salinity gradient solar ponds (SGSP), which collect, store, and deliver solar thermal baseload power (e.g., for electricity generation).
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: April 29, 2014
    Inventor: George Nitschke
  • Patent number: 8707557
    Abstract: The invention apparatus and method is practiced in large steam surface condensers and in one aspect comprises relatively narrow horizontal trays installed between the vertical tube bundles to drain the condensate from the upper bundle around the lower ones and thereby improve the heat transfer coefficient of the lower bundle(s). A second aspect of the invention apparatus comprises relatively narrow horizontal trays installed slightly below the lowest bundle to improve reheating of falling condensate up toward the saturation temperature of the condenser thereby reducing subcooling and the level of dissolved oxygen in that condensate. A third aspect of the invention apparatus comprises a partial hood retrofitted at the top of the central tube sheet air off-take entrance which is a unique element of the starburst/core pipe condenser design to thereby improve the air removal capability and consequently the performance of the condenser.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 29, 2014
    Inventors: John M. Burns, Daniel C. Burns, Jeffrey S. Burns, Robert L. Stevens
  • Patent number: 8701412
    Abstract: Systems for recovering heat from a biomass gasifier are provided. One gasification system includes a gasifier having an inlet section configured to receive a biomass feedstock and air, and a reactor section configured to gasify a mixture of the biomass feedstock and the air to generate a producer gas. The gasifier also has an outlet section configured to output the producer gas from the reactor section. The gasification system also includes a heat exchanger system coupled to the gasifier. The heat exchanger system is configured to recover heat from the gasifier by transferring heat to a fluid to create a heated fluid.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: April 22, 2014
    Assignee: General Electric Company
    Inventors: Jinmesh Pranav Majmudar, Omprakash Mall, Lakshmanan Subramanian, Avish Ivan Dsouza
  • Patent number: 8695342
    Abstract: A turbine for converting thermal energy into mechanical work. The turbine includes a heating system, wherein the heating system is adapted for heating the turbine in a power off state and/or a start-up phase of the turbine. The heating system may include an electrical heating device and/or a steam heating device.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: April 15, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Mikael Fredriksson, Torbjörn Johansson, Tommy Larsson, Oskar Mazur
  • Publication number: 20140096522
    Abstract: Provided is a power plant and a method of operating thereof. The power plant includes a boiler for heating process fluids; and a multistage first steam turbine with an outlet line that passes through the boiler. The outlet line includes an extraction line that is configured and arranged to extract steam from an intermediate stage of the first steam turbine and heat at least one of the process fluids.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 10, 2014
    Applicant: ALSTOM Technology Ltd
    Inventors: Julia KIRCHNER, Volker Schüle, Stefan Hellweg
  • Patent number: 8689443
    Abstract: The invention apparatus and method is practiced in large steam surface condensers and in one aspect comprises relatively narrow horizontal trays installed between the vertical tube bundles to drain the condensate from the upper bundle around the lower ones and thereby improve the heat transfer coefficient of the lower bundle(s). A second aspect of the invention apparatus comprises relatively narrow horizontal trays installed slightly below the lowest bundle to improve reheating of falling condensate up toward the saturation temperature of the condenser thereby reducing subcooling and the level of dissolved oxygen in that condensate. A third aspect of the invention apparatus comprises a partial hood retrofitted at the top of the central tubesheet air off-take entrance which is a unique element of the starburst/core pipe condenser design to thereby improve the air removal capability and consequently the performance of the condenser.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: April 8, 2014
    Inventors: John M. Burns, Daniel C. Burns, Jeffrey S. Burns, Robert L. Stevens
  • Patent number: 8661819
    Abstract: A system reclaiming contaminated water includes a heat exchanger that receives the contaminated water and converts at least a portion of the contaminated water into steam and collects at least a portion of the contaminants within the heat exchanger. A thermal transfer fluid is heated by a solar concentrator during daytime and by a biofuel combustion device during nighttime. The heated fluid is circulated through the heat exchanger to heat the contaminated water. A steam engine is coupled to a generator, the steam engine receives the steam from the heat exchanger to drive the generator to provide power for the system. Steam exhausted from the steam engine is supplied to supplemental heat loads. The collected contaminants are directed to an evaporation device to remove residual liquid.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: March 4, 2014
    Assignee: Morningside Venture Investments Limited
    Inventor: Frank Schubert
  • Patent number: 8656719
    Abstract: A thermal power plant includes a boiler for burning fossil fuel to generate steam, a steam turbine including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine which are driven by steam generated in the boiler, an absorber for absorbing and capturing CO2 contained in boiler exhaust gas discharged from the boiler in an absorbing liquid, a desorber for circulating the absorbing liquid between the desorber and the absorber and separating CO2 from the absorbing liquid that has absorbed CO2, a reboiler for feeding a heating source for separating CO2 from the absorbing liquid to the desorber, a steam pipe system for feeding steam taken out from the high-pressure turbine and the intermediate-pressure turbine to the reboiler, and a steam feed source switching device.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: February 25, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuya Kosaka, Nobuyoshi Mishima, Takashi Sugiura
  • Publication number: 20140007576
    Abstract: A method and a device for conversion of energy are proposed, in which a hydrocarbon-containing energy source is burned in a combustion space (12) in an oxygen-enriched atmosphere and the generated heat is transmitted to a steam power plant circuit (60). Flue gas (104), which is formed in the combustion of the hydrocarbon-containing energy source, is cooled in a direct-contact cooler (20) in direct contact with a water-containing coolant flow (138).
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventor: Alexander ALEKSEEV
  • Patent number: 8621866
    Abstract: A steam power unit including a double-flow medium pressure turbine section that is fluidically connected to a low pressure turbine section is provided. A flow section of the medium pressure turbine section is configured to supply an external steam consumer. A throttle valve for adjusting the pressure in the steam extraction line is arranged only in a turbine discharge line.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: January 7, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Norbert Pieper, Rudolf Pötter
  • Patent number: 8613201
    Abstract: Methods and systems for reducing a pressure of compressed natural gas and for delivering natural gas are disclosed. A regulator comprising a vortex tube may be used to reduce the pressure of compressed natural gas while a temperature thereof is also reduced. The temperature reduction associated with a pressure drop in the compressed natural gas is achieved by throttling the gas at constant enthalpy from 3,000 PSIG to 150 PSIG through the regulator. At least one heat exchanger may be utilized to increase the temperature of the compressed natural gas to a temperature suitable for injection delivery. A pressure-reducing regulator may be used to further reduce a pressure of the gas to about 45 PSIG for delivery to an end-user.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: December 24, 2013
    Assignee: Questar Gas Company
    Inventors: Todd Allan Bayliff, Troy David Sorensen, Michael Lowell Gill, Richard Joseph Kiser, II, Kelly D. Pace, Lee R. Mettmann
  • Patent number: 8572971
    Abstract: A boiler apparatus is provided that generates a heat source capable of efficiently regenerating absorbing liquid while maintaining steam turbine efficiency to a maximum extent.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 5, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyoshi Mishima, Takashi Sugiura, Tetsuya Kosaka
  • Patent number: 8567196
    Abstract: A steam turbine power plant 10 includes a steam turbine facility 20 in which power is generated by driving steam turbines with steam from a boiler 21 generating steam using combustion heat and steam from a heat collecting steam generator 31 generating steam using sunlight, and a carbon dioxide collecting facility 60 in which carbon dioxide contained in combustion gas from the boiler 21 and the like is collected. Further, steam from the heat collecting steam generator 31 is delivered to a solar heat steam turbine 32 and performs expansion work, and thereafter part of the steam is delivered to the carbon dioxide collecting facility 60 via a pipe 51 and heats the absorbing liquid 100 in the recovery tower 80.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: October 29, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuo Okita, Takeo Suga, Haruhiko Hirata
  • Publication number: 20130276448
    Abstract: Liquid is flash evaporated in a series of cells along and surrounding an exhaust duct to generate a pressurized vapor where at least one of the surfaces is in communication with the source of heat sufficient to maintain the surface at a temperature such that the liquid injected into the chamber is substantially instantly converted to a superheated vapor with no liquid pooling within the chamber. The liquid is introduced by controlled injectors operating at a required rate. Each of the cells is periodically discharged by a pressure controlled relief valve and the vapor from the cells combined to form a continuous stream feeding a turbine or other energy conversion device. The outer wall of the cell is offset so that it contacts the inner wall at one point around the periphery. Heat transfer ribs and bars can be provided in the duct to provide increased heat transfer where necessary.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 24, 2013
    Inventor: Laurie Davies
  • Patent number: 8562791
    Abstract: A system and method for decontaminating water and generating water vapor includes introducing contaminated water in to a vessel. The water is moved through a series of rotating trays alternately separated by stationary baffles so as to swirl and heat the water to effect the vaporization thereof to produce a vapor having at least some of the contaminants separated therefrom. The vapor is removed from the vessel for condensing apart from the separated contaminants and the remaining water. The vapor may be passed through a turbine connected to an electric generator. Sensors in a controller may be employed to adjust the speed of rotation of the trays or water input into the vessel in response to the sensed conditions. The treated water may be recirculated and reprocessed through the vessel to increase the purification thereof.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: October 22, 2013
    Assignee: Verno Holdings, LLC
    Inventors: John D. Riley, Dana L. Johnson