Patents Assigned to Sargas AS
  • Patent number: 8887510
    Abstract: A power plant for combustion of carbonaceous fuels with CO2 capture, comprising a pressurized fluidized bed combustion chamber (2), heat pipes (8, 8?) for cooling of the combustion gas in the combustion, a direct contact cooler (15), a cleaned exhaust pipe (18) for withdrawal of the exhaust gas from the direct contact cooler (15) and introduction of the cooled exhaust gas into a CO2 absorber (19), where a lean exhaust pipe (20) is connected to the top of the absorber (19) for withdrawal of lean exhaust gas from the absorber (20), and a rich absorbent pipe (30) is connected to the bottom of the absorber (19) for withdrawal of rich absorbent and introduction of the rich absorbent into a stripping column (32) for regeneration of the absorbent to give a lean absorbent and a CO2 stream that is further treated to give clean CO2, where a water recirculation pipe (16) is connected to the bottom of the direct contact cooler (15) for withdrawal of used cooling water and connected to the top of the direct contact cooler
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: November 18, 2014
    Assignee: Sargas AS
    Inventors: Tor Christensen, Hermann De Meyer
  • Patent number: 8701764
    Abstract: A plant for generation of steam for oil sand recovery from carbonaceous fuel with capture of CO2 from the exhaust gas, comprising heat coils (105, 105?, 105?) arranged in a combustion chamber (101) to cool the combustion gases in the combustion chamber to produce steam and superheated steam in the heat coils, steam withdrawal lines (133, 136, 145) for withdrawing steam from the heat coils, an exhaust gas line (106) for withdrawal of exhaust gas from the combustion chamber (101), where the combustion chamber operates at a pressure of 5 to 15 bara, and one or more heat exchanger(s) (107, 108) are provided for cooling of the combustion gas in line (106), a contact device (113) where the cooled combustion gas is brought in countercurrent flow with a lean CO2 absorbent to give a rich absorbent and a CO2 depleted flue gas, withdrawal lines (114, 115) for withdrawal of rich absorbent and CO2 depleted flue gas, respectively, from the contact device, the line (115) for withdrawal of CO2 depleted flue gas being connect
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: April 22, 2014
    Assignee: Sargas AS
    Inventors: Knut Børseth, Tor Christensen, Henrik Fleischer
  • Publication number: 20110283709
    Abstract: A method and a power plant for combustion of carbonaceous fuel for production of electrical power are described. The plant is a pressurized fluidized bed combustion plant wherein the compressor(s) (5, 5 . . . ) for compression of the air for the combustion is (are) arranged on shafts being separate from the shafts for the expander(s) (29) for expanding the combustion gas.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 24, 2011
    Applicant: Sargas AS
    Inventor: Tor Christensen
  • Patent number: 7559977
    Abstract: A method for separation of CO2 from the combustion gas from a thermal power plant fired with fossil fuel, wherein the combustion gas from the thermal power plant is used as cooled, compressed and reheated by combustion of natural gas in a combustion chamber to form an exhaust gas, where the exhaust gas is cooled an brought in contact with an absorbent absorbing CO2 from the exhaust gas to form a low CO2 stream and an absorbent with absorbed CO2, and where the low CO2 stream is heated by means of heat exchanges against the hot exhaust gas leaving the combustion chamber before it is expanded in turbines, is described. A plant for performing the method and a combined plant is also described.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: July 14, 2009
    Assignee: Sargas AS
    Inventors: Henrik Fleischer, Tor Christensen, Knut Borseth
  • Patent number: 7531144
    Abstract: This invention relates to a method for desalination of seawater (5, 30) and separation of CO2 from exhaust (77) from a gas turbine (7). LNG (4) is fed into a heat exchanger (6) in which it receives heat from seawater (5) and heat from steam (27) from an exhaust boiler, and heat from combustion air (3) via a line to an air inlet (33) of said gas turbine (7), for evaporating LNG (4) to gas which is fed to a gas export module (10) and to a fuel gas skid (8) for supplying said gas turbine (7) with fuel. Thus said combustion air (3, 28) at the air inlet to said gas turbine (7) obtains a lowered temperature and increases an efficiency of said gas turbine (7). Said CO2-rich exhaust gas (77) from said gas turbine (7) is fed into a process unit (17) having an inlet (35a) with a fan (35b) and an outlet for CO2-reduced exhaust (13). Said cooled seawater from said heat exchanger (6) is fed into said process unit (17) via a coaxial feed pipe (67) for seawater and NH4OH arranged in said process unit (17).
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: May 12, 2009
    Assignee: Sargas AS
    Inventor: Knut Erik Borseth
  • Publication number: 20090025390
    Abstract: A method for generation of electrical power mainly from a coal based fuel, where the combustion gas is separated into a CO2 rich stream and a CO2 poor stream in a CO2 capturing unit, the CO2 poor stream is released into the surroundings, and the CO2 rich stream is prepared for deposition or export, is described.
    Type: Application
    Filed: April 8, 2005
    Publication date: January 29, 2009
    Applicant: Sargas AS
    Inventors: Tor Christensen, Henrik Fleischer, Knul Borseth
  • Publication number: 20080087328
    Abstract: A method for transport of natural gas through a pipeline from a gas field to a terminal, where there is a risk of condensation of heavy hydrocarbon components in the pipeline during the transport, wherein dry gas is added to the natural gas to reduce the cricondentherm and the cricondentherm of the gas and thus prevent condensation in the pipeline, is described. A plant for carrying out the method is also described.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 17, 2008
    Applicant: Sargas AS
    Inventors: Tor Christensen, Henrik Fleischer, Knut Borseth
  • Patent number: 7328581
    Abstract: A method for the generation of electrical power from a carbonaceous fuel, wherein the fuel is combusted in presence of oxygen under increased pressure in a combustion chamber is described. The exhaust gas from the combustion is separated into a CO2 rich fraction that is handled so that it does not escape to the surroundings, and a CO2 depleted fraction that is expanded over one or more turbines to power other processes and/or generation of electrical power, before the gas is released into the surroundings, where the temperature in the combustion chamber is reduced under the generation of steam that is expanded over steam turbines connected to electrical generator for the generation of electrical power. Additionally a thermal power plant for the performing of the method is described.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: February 12, 2008
    Assignee: Sargas AS
    Inventors: Tor Christensen, Henrik Fleischer, Knut Børseth
  • Patent number: 7309440
    Abstract: This invention relates to a method for desalination of seawater (5, 30) and separation of CO2 from exhaust (77) from a gas turbine (7). LNG (4) is fed into a heat exchanger (6) in which it receives heat from seawater (5) and heat from steam (27) from an exhaust boiler, and heat from combustion air (3) via a line to an air inlet (33) of said gas turbine (7), for evaporating LNG (4) to gas which is fed to a gas export module (10) and to a fuel gas skid (8) for supplying said gas turbine (7) with fuel. Thus said combustion air (3, 28) at the air inlet to said gas turbine (7) obtains a lowered temperature and increases an efficiency of said gas turbine (7). Said CO2-rich exhaust gas (77) from said gas turbine (7) is fed into a process unit (17) having an inlet (35a) with a fan (35b) and an outlet for CO2-reduced exhaust (13). Said cooled seawater from said heat exchanger (6) is fed into said process unit (17) via a coaxial feed pipe (67) for seawater and NH4OH arranged in said process unit (17).
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: December 18, 2007
    Assignee: Sargas AS
    Inventor: Knut Erik Børseth
  • Publication number: 20070006565
    Abstract: A method for separation of CO2 from the combustion gas from a thermal power plant fired with fossil fuel, wherein the combustion gas from the thermal power plant is used as cooled, compressed and reheated by combustion of natural gas in a combustion chamber to form an exhaust gas, where the exhaust gas is cooled an brought in contact with an absorbent absorbing CO2 from the exhaust gas to form a low CO2 stream and an absorbent with absorbed CO2, and where the low CO stream is heated by means of heat exchanges against the hot exhaust gas leaving the combustion chamber before it is expanded in turbines, is described. A plant for performing the method and a combined plant is also described.
    Type: Application
    Filed: November 5, 2004
    Publication date: January 11, 2007
    Applicant: Sargas AS
    Inventors: Henrik Fleischer, Tor Christensen, Knut Borseth
  • Publication number: 20070006920
    Abstract: A method and an installation for alternating storage of CO2 and natural gas in a way that ensures minimal mixture of the gases, is described. CO2 and natural gas are alternately stored in a tank installation comprising a plurality of tanks connected in series, where CO2 is always filled and emptied through a first tank in the series of tanks, and where natural gas always is filled and emptied through a last tank in the series of tanks.
    Type: Application
    Filed: December 16, 2004
    Publication date: January 11, 2007
    Applicant: Sargas AS
    Inventors: Knut Børseth, Henrik Fleischer