Patents by Inventor Benjamin Doron

Benjamin Doron has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6881243
    Abstract: A method for removing acidic gases from waste gases is disclosed. The invention relates to a method for removing acid gases, in particular from SO2 and NOx, by contacting the waste gas with an emulsion of water in organic sulfoxides, in particular of water in oil-derived-sulfoxides. The organic sulfoxide phase can be regenerated after the emulsion is loaded with polluants, by letting the emulsion to settle down and separate into two phases. The aqueous phase obtained after the separation contains sulfate and nitrate ions which can be collected and used as valuable chemicals.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: April 19, 2005
    Assignee: Lextran Ltd.
    Inventors: Adolf Khitrik, Gregori Pipko, Benjamin Doron
  • Patent number: 6539723
    Abstract: Apparatus for generating power includes a gas turbine unit having a compressor for compressing ambient air and producing compressed air, a combustion chamber to which the compressed air is supplied, a source of relatively high grade fuel for burning in the combustion chamber and producing combustion gases, and a gas turbine connected to generator and to the compressor for expanding the combustion gases and producing exhaust gases. The apparatus further includes a combustor that burns relatively low grade fuel, and produces combustion products, and an indirect contact heat exchanger responsive to the combustion products for heating the compressed air before the latter is applied to the combustion chamber, and for producing cooled combustion products. In addition, an energy converter is provided having an organic working fluid responsive to the exhaust gases for converting heat in the exhaust gases to electricity.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: April 1, 2003
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Benjamin Doron, Joseph Sinai
  • Patent number: 6398825
    Abstract: In accordance with the present invention, a method for supplying solid material such as hot carbonaceous material from a pyrolyzer or reactor to a furnace, is provided comprising providing a screw conveyor for receiving the solid carbonaceous material from the pyrolyzer or reactor preferably from above the conveyor and transporting it along its length to a vaned rotor preferably positioned on the axle of the screw conveyor preferably substantially near the end of the screw conveyor for supplying the carbonaceous material to the furnace.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: June 4, 2002
    Assignee: Ormat Industries Ltd.
    Inventors: Boris Siniakevith, Mark Khaskin, Daniel Goldman, Benjamin Doron, Lucien Y. Bronicki, Eli Yaffe
  • Patent number: 6365038
    Abstract: Asphaltene and oil shale are pyrolyzed at substantially atmospheric pressure for producing combustible products and carbonaceous material. A combustor combusts the carbonaceous material and produces flue gases which are supplied to a utilization device, and hot ash which is fed back to the pyrolyzer.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: April 2, 2002
    Assignee: Ormat Industries Ltd.
    Inventor: Benjamin Doron
  • Patent number: 6351935
    Abstract: A power plant includes a gas turbine unit having a compressor for compressing ambient air, a burner for burning fuel and heating air compressed by said compressor, and a turbine for expanding air heated by said burner to drive said compressor and produce hot exhaust gases. The plant further includes a combustor for containing particles of solid fuel which are fluidized by the exhaust gases from the turbine to produce hot products of combustion that include coarse ash particulate. Apparatus is provided for generating power from the hot products of combustion.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 5, 2002
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Joseph Sinai, Benjamin Doron, Uri Kaplan
  • Publication number: 20010039796
    Abstract: Apparatus for generating power includes a gas turbine unit having a compressor for compressing ambient air and producing compressed air, a combustion chamber to which the compressed air is supplied, a source of relatively high grade fuel for burning in the combustion chamber and producing combustion gases, and a gas turbine connected to generator and to the compressor for expanding the combustion gases and producing exhaust gases. The apparatus further includes a combustor that burns relatively low grade fuel, and produces combustion products, and an indirect contact heat exchanger responsive to the combustion products for heating the compressed air before the latter is applied to the combustion chamber, and for producing cooled combustion products. In addition, an energy converter is provided having an organic working fluid responsive to the exhaust gases for converting heat in the exhaust gases to electricity.
    Type: Application
    Filed: July 16, 2001
    Publication date: November 15, 2001
    Applicant: ORMAT INDUSTRIES LTD.
    Inventors: Lucien Y. Bronicki, Benjamin Doron, Joseph Sinai
  • Patent number: 6260347
    Abstract: Apparatus for generating power includes a gas turbine unit having a compressor for compressing ambient air and producing compressed air, a combustion chamber to which the compressed air is supplied, a source of relatively high grade fuel for burning in the combustion chamber and producing combustion gases, and a gas turbine connected to generator and to the compressor for expanding the combustion gases and producing exhaust gases. The apparatus further includes a combustor that burns relatively low grade fuel, and produces combustion products, and an indirect contact heat exchanger responsive to the combustion products for heating the compressed air before the latter is applied to the combustion chamber, and for producing cooled combustion products. In addition, an energy converter is provided having an organic working fluid responsive to the exhaust gases for converting heat in the exhaust gases to electricity.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: July 17, 2001
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Benjamin Doron, Joseph Sinai
  • Patent number: 6101959
    Abstract: Oil shale having a relatively wide range of heating value is combusted by supplying the oil shale and a further fuel having a heating value greater than the heating value of the oil shale to a combustor. The oil shale is fed to the combustor at a substantially fixed rate, independently of the heating value of the oil shale, and the further fuel is fed to the combustor at a rate such that the heating value of the fuel in the combustor remains substantially constant in the face of variations in the heating value of the oil shale. Preferably, the temperature of combustion of the products of combustion is the parameter used to control the rate at which the further fuel is fed to the combustor.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: August 15, 2000
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Benjamin Doron, Daniel Goldman
  • Patent number: 6014856
    Abstract: A power plant includes a gas turbine unit having a compressor for compressing ambient air, a burner for burning fuel and heating air compressed by said compressor, and a turbine for expanding air heated by said burner to drive said compressor and produce hot exhaust gases. The plant further includes a combustor for containing particles of solid fuel which are fluidized by the exhaust gases from the turbine to produce hot products of combustion that include coarse ash particulate. Apparatus is provided for generating power from the hot products of combustion.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: January 18, 2000
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Joseph Sinai, Benjamin Doron, Uri Kaplan
  • Patent number: 5983810
    Abstract: In accordance with the present invention, a method for supplying solid material such as hot carbonaceous material from a pyrolyzer or reactor to a furnace, is provided comprising providing a screw conveyor for receiving the solid carbonaceous material from the pyrolyzer or reactor preferably from above the conveyor and transporting it along its length to a vaned rotor preferably positioned on the axle of the screw conveyor preferably substantially near the end of the screw conveyor for supplying the carbonaceous material to the furnace.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: November 16, 1999
    Assignee: Ormat Industries Ltd.
    Inventors: Boris Siniakevith, Mark Khaskin, Daniel Goldman, Benjamin Doron, Lucien Y. Bronicki, Eli Yaffe
  • Patent number: 5976361
    Abstract: A hydrocarbon source feed is upgraded using a solvent deasphalting (SDA) unit employing a solvent having a critical temperature T.sub.c by initially separating from a first hydrocarbon input stream fractions with an atmospheric equivalent boiling temperature less than about T.sub.f .degree. F. for producing a stream of T.sub.f.sup.- fractions and a residue stream (T.sub.f.sup.+ stream), where T.sub.f is greater than about T.sub.c -50.degree. F. In the SDA unit, a second hydrocarbon input stream which includes the residue stream is deasphalted for producing a first product stream of substantially solvent-free asphaltenes, and a second product stream containing substantially solvent-free deasphalted oil (DAO). The source feed may be included in either the first or second input streams. The DAO in the second product stream is thermally cracked for producing an output stream that includes thermally cracked fractions and by-product asphaltenes produced by thermally cracking the DAO.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: November 2, 1999
    Assignee: Ormat Industries Ltd.
    Inventors: Richard L. Hood, Phillip B. Rettger, Randall S. Goldstein, Lucien Y. Bronicki, Benjamin Doron, Joseph Sinai
  • Patent number: 5934065
    Abstract: Apparatus for generating power includes a gas turbine unit having a compressor for compressing ambient air and producing compressed air, a combustion chamber to which the compressed air is supplied, a source of relatively high grade fuel for burning in the combustion chamber and producing combustion gases, and a gas turbine connected to generator and to the compressor for expanding the combustion gases and producing exhaust gases. The apparatus further includes a combustor that burns relatively low grade fuel, and produces combustion products, and an indirect contact heat exchanger responsive to the combustion products for heating the compressed air before the latter is applied to the combustion chamber, and for producing cooled combustion products. In addition, an energy converter is provided having an organic working fluid responsive to the exhaust gases for converting heat in the exhaust gases to electricity.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: August 10, 1999
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Benjamin Doron, Joseph Sinai
  • Patent number: 5857421
    Abstract: Combustible gases from a solid fuel are produced by pyrolyzing the fuel in a pyrolyzer which also produces carbonaceous material. The carbonaceous material from the pyrolyzer is combusted in a furnace to produce combustion products that include hot flue gases and ash particulate. The combustion products are separated into a plurality of streams, one of which contains flue gases, and another of which contains hot ash which is directed into the pyrolyzer. Finally, the stream of flue gases from the furnace is used to dry the fuel that is supplied to said pyrolyzer.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: January 12, 1999
    Assignee: Ormat, Inc.
    Inventors: Benjamin Doron, Daniel Goldman, Eli Yaffe
  • Patent number: 5713195
    Abstract: A power plant includes a gas turbine unit having a compressor for compressing ambient air, a burner for burning fuel and heating air compressed by said compressor, and a turbine for expanding air heated by said burner to drive said compressor and produce hot exhaust gases. The plant further includes a combustor for containing particles of solid fuel which are fluidized by the exhaust gases from the turbine to produce hot products of combustion that include coarse ash particulate. Apparatus is provided for generating power from the hot products of combustion.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: February 3, 1998
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Joseph Sinai, Benjamin Doron, Uri Kaplan
  • Patent number: 5664414
    Abstract: Apparatus for generating power includes a gas turbine unit having a compressor for compressing ambient air and producing compressed air, a combustion chamber to which the compressed air is supplied, a source of relatively high grade fuel for burning in the combustion chamber and producing combustion gases, and a gas turbine connected to generator and to the compressor for expanding the combustion gases and producing exhaust gases. The apparatus further includes a combustor that burns relatively low grade fuel, and produces combustion products, and an indirect contact heat exchanger responsive to the combustion products for heating the compressed air before the latter is applied to the combustion chamber, and for producing cooled combustion products. In addition, an energy converter is provided having an organic working fluid responsive to the exhaust gases for converting heat in the exhaust gases to electricity.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: September 9, 1997
    Assignee: Ormat Industries Ltd.
    Inventors: Lucien Y. Bronicki, Benjamin Doron, Joseph Sinai
  • Patent number: 5651321
    Abstract: In accordance with the present invention, a method for supplying solid material such as hot carbonaceous material from a pyrolyzer or reactor to a furnace, is provided comprising providing a screw conveyor for receiving the solid carbonaceous material from the pyrolyzer or reactor preferably from above the conveyor and transporting it along its length to a vaned rotor preferably positioned on the axle of the screw conveyor preferably substantially near the end of the screw conveyor for supplying the carbonaceous material to the furnace.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: July 29, 1997
    Assignee: Ormat Industries Ltd.
    Inventors: Boris Siniakevith, Mark Khaskin, Daniel Goldman, Benjamin Doron, Lucien Y. Bronicki, Eli Yaffe
  • Patent number: 5582690
    Abstract: Desalination of sea water is achieved using a solar pond that includes a halocline interposed between a convective upper wind mixed layer exposed to the ambient atmosphere, and a lower heat storage layer of hot, concentrated brine, Hot brine from the heat storage layer is flashed into steam which is condensed into desalted water using an indirect heat exchanger cooled by saline water. The latent heat of condensation of the steam warms the saline water and effects evaporation of water therefrom in the form of vapor. The last mentioned water vapor is condensed into desalted water using a two-stage condenser, the first stage of which is an indirect heat exchanger cooled by saline feed water which is heated as a result producing warmed saline feed water that constitutes the saline water used for condensing the steam produced by flashing the brine from the heat storage layer of the pond.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: December 10, 1996
    Assignee: Ormat Turbines (1965) Ltd.
    Inventors: Joseph Weinberger, Uriyel Fisher, Gad Assaf, Benjamin Doron
  • Patent number: 5571490
    Abstract: High sulfur content fuel is combusted in the presence of oil shale containing significant amounts of calcium carbonate so that the sulfur and calcium carbonate oxidize and react to form calcium sulfate particulate which captures the sulfur and in the fuel and prevents its release to the atmosphere.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: November 5, 1996
    Assignee: Ormat, Inc.
    Inventors: Lucien Y. Bronicki, Benjamin Doron
  • Patent number: 5505144
    Abstract: Combustible gases from a solid fuel are produced by pyrolyzing the fuel in a pyrolyzer which also produces carbonaceous material. The carbonaceous material from the pyrolyzer is combusted in a furnace to produce combustion products that include hot flue gases and ash particulate. The combustion products are separated into a plurality of streams, one of which contains flue gases, and another of which contains hot ash which is directed into the pyrolyzer. Finally, the stream of flue gases from the furnace is used to dry the fuel that is supplied to said pyrolyzer.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: April 9, 1996
    Assignee: Ormat, Inc.
    Inventors: Benjamin Doron, Daniel Goldman, Eli Yaffe
  • Patent number: 5501160
    Abstract: A portion of solid fuel is pyrolyzed in a pyrolyzer to produce combustible gases and carbonaceous material, the carbonaceous material being supplied from the pyrolyzer to a furnace. A further portion of the solid fuel is added to a furnace and is combusted with the carbonaceous material therein to produce combustion products that include hot flue gases and ash particulate. The combustion products are separated into a plurality of streams, one of which contains coarse ash and another of which contains flue gases and fine ash. A portion of the coarse ash is directed into the pyrolyzer while a further portion is disposed of, preferably by being used to heat air entering the furnace.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: March 26, 1996
    Assignee: Ormat Industries Ltd
    Inventors: Daniel Goldman, Boris Siniakevith, Benjamin Doron, Lucien Y. Bronicki, Eli Yaffe