Patents by Inventor Ovidiu Marin
Ovidiu Marin 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).
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Patent number: 7637109Abstract: A power generation system includes a gas generator configured to receive an oxygen stream and a gaseous hydrocarbon fuel stream at an inlet of the gas generator, and a turbine section disposed downstream from the gas generator to receive and expand a combustion product stream from the gas generator. A heat exchange section is provided to facilitate heat exchange between a liquefied natural gas (LNG) supply from a LNG supply source and at least one other stream flowing within the system such that at least a portion of the LNG stream is converted to the gaseous hydrocarbon fuel stream that is to be delivered to the gas generator and the at least one other stream is cooled to a selected temperature.Type: GrantFiled: July 1, 2005Date of Patent: December 29, 2009Assignees: American Air Liquide, Inc., Clean Energy Systems, Inc.Inventors: Ovidiu Marin, Ravikiran Sangras, Keith Pronske
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Patent number: 7401577Abstract: An oxygen enriched boiler having a burner subassembly and a steam subassembly is disclosed. The burner subassembly has a fuel inlet, an oxidant inlet, a combustion chamber, a flue gas composition detector and a flue gas outlet. The fuel inlet provides fuel to the combustion chamber, the oxidant inlet provides an oxygen-enriched inlet stream to the combustion chamber, the combustion chamber burns the fuel and the flue gas composition detector measures at least one characteristic of the flue gas. The steam subassembly has a supply water inlet, a heat exchange zone, a water drum, a steam quality actuator and a steam outlet.Type: GrantFiled: February 13, 2004Date of Patent: July 22, 2008Assignee: American Air Liquide, Inc.Inventors: Victor Saucedo, Ovidiu Marin
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Publication number: 20080034758Abstract: An integrated air separation and oxygen fired power generation system includes an air separation unit and a gas turbine including an air compressor to provide compressed air for the air separation unit. The system further includes a gas turbine expander and at least one additional turbine to drive the air compressor, as well as at least one combustion unit to provide drive gas for expander and additional turbine(s). A portion of oxygen produced by the air separation unit is delivered to the combustor(s) to facilitate production of drive gas for use by the expander and additional turbine(s). Turbine inlet temperatures are controlled by recycling water or steam to the combustor(s).Type: ApplicationFiled: October 22, 2007Publication date: February 14, 2008Applicant: Societe Anonyme A Directoire et Conseil De Surveilance Pour L' Etude Et L'Exploitation DesInventors: Ovidiu Marin, Scott Macadam, Frederic Fillet, Pietro Zanno
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Patent number: 7320288Abstract: A steam-generating combustion system includes an oxygen enriched gas provided as at least part of an oxidant stream. A combustion chamber receives and combusts a fuel in the oxidant stream and generate steam. The combustion chamber generates flue gas having a flue gas volume which is smaller than a volume of flue gas generated by the combustion chamber when operated with air as the oxidant stream. A flue gas pollutant control system receives the flue gas from the combustion chamber and reduces at least one of particulate matter, SOx, NOx, and mercury. The reduction in flue gas volume allows the implementation of much smaller pollutant control equipment, since the size of the pollutant control units is mainly based on the volume or mass flow rate of flue gas to be treated. Moreover, the system including oxygen-enriched gas in the oxidant will lead to concentrated levels of the pollutants in the flue gas.Type: GrantFiled: May 31, 2005Date of Patent: January 22, 2008Assignee: American Air Liquide, Inc.Inventors: Ovidiu Marin, Scott Macadam, Erwin Penfornis, Fabienne Chatel-Pelage
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Patent number: 7284362Abstract: An integrated air separation and oxygen fired power generation system includes an air separation unit and a gas turbine including an air compressor to provide compressed air for the air separation unit. The system further includes a gas turbine expander and at least one additional turbine to drive the air compressor, as well as at least one combustion unit to provide drive gas for expander and additional turbine(s). A portion of oxygen produced by the air separation unit is delivered to the combustor(s) to facilitate production of drive gas for use by the expander and additional turbine(s). Turbine inlet temperatures are controlled by recycling water or steam to the combustor(s).Type: GrantFiled: January 27, 2003Date of Patent: October 23, 2007Assignee: L'Air Liquide, Société Anonyme À Directoire et Conseil de Surveillance pour l'Étude Et l'Exploitation des Procedes Georges ClaudeInventors: Ovidiu Marin, Scott Macadam, Frederic Fillet, Pietro Di Zanno
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Patent number: 7204209Abstract: An injection lance for injecting a fluid over a predefined target area within a system includes a support block with an inlet side and an outlet side. A plurality of channels are disposed non-parallel with respect to each other within the support block and extend between the inlet and outlet sides of the support block so as to receive fluid at the inlet side and deliver fluid through the support block for injection from the outlet side of the support block over the target area. At least two channels extend from the inlet side toward the outlet side in a direction away from a central axis of the support block, where the central axis intersects the outlet side. The target area includes a plurality of consecutively aligned sectors, and the channels are oriented within the support block so that a central axis of a fluid stream injected from each channel over the target area is centered between longitudinal boundaries defined by a respective sector.Type: GrantFiled: May 27, 2005Date of Patent: April 17, 2007Assignee: American Air Liquide, Inc.Inventors: Ovidiu Marin, Scott Macadam, Benjamin Bugeat, Fabienne Chatel-Pelage
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Patent number: 7191587Abstract: An oxygen fired power generation system is disclosed. The power generation system has a high pressure combustor having a water recycle temperature control subassembly, and an intermediate pressure combustor having a CO2 recycle temperature control subassembly. Thus, a first energy cycle utilizes a first energy source operatively associated with a corresponding first heat sink, and a first inert agent to provide energy transfer therebetween and temperature control during operation of the first energy source. In like fashion, a second energy cycle utilizes a second energy source operatively associated with a corresponding second heat sink, and a second inert agent to provide energy transfer therebetween and temperature control during operation of the second energy source. The first and second energy sources are not identical, the first and second heat sinks are not identical and the first and second inert agents are not identical.Type: GrantFiled: October 31, 2003Date of Patent: March 20, 2007Assignee: American Air Liquide, Inc.Inventors: Ovidiu Marin, Scott Macadam
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Patent number: 7069867Abstract: A process for burning a sulfur-containing fuel to produce a flue gas. The process includes introducing a sulfur-containing fuel into a combustion chamber, introducing an oxidant stream into the combustion chamber and mixing it with the sulfur-containing fuel to define a combustion zone, and introducing potassium carbonate into the combustion chamber. The sulfur-containing fuel is burned to produce the flue gas and potassium sulfate.Type: GrantFiled: July 20, 2004Date of Patent: July 4, 2006Assignee: American Air Liquide, Inc.Inventors: Ovidiu Marin, Nicolas Perrin, Pavol Pranda
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Patent number: 7066728Abstract: An improved process for burning solid fuel particles in a combustion chamber and creating a flue gas is disclosed. The method comprises creating a fuel gas stream by mixing the solid fuel particles with a conveying gas, transporting the fuel gas stream through a fuel duct terminating at the combustion chamber at a fuel exit plane and injecting an oxygen stream through an injection device into said fuel gas at an oxygen injection location selected to create a mixing zone to mix the oxygen stream and the fuel gas stream immediately prior to or coincident with combustion of the fuel. Operating parameters of the process can be varied to optimally reduce NOx emissions.Type: GrantFiled: January 15, 2004Date of Patent: June 27, 2006Assignee: American Air Liquide, Inc.Inventors: Fabienne Chatel-Pelage, Ovidiu Marin, Scott Macadam, Erwin Penfornis
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Patent number: 7062912Abstract: An air separation unit separates air into an oxygen-rich and oxygen-deficient gas. Fuel gas and the oxygen-rich gas are preheated at heat exchangers through which hot flue gas flows. Combustion of the preheated fuel and oxygen-rich gases result in the hot flue gas. The hot flue gas is cooled at the heat exchangers and flows through a waste heat boiler. Water and/or steam flowing through the waste heat boiler absorbs energy from the cooled flue gas thereby producing heated steam. The heated steam flows through a turbine to produce power. The power is transferred to the air separation unit, thus reducing a power requirement of the air separation unit needed to separate the air.Type: GrantFiled: February 24, 2003Date of Patent: June 20, 2006Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme A Directoire et Consell de Surveillance Pour l'etude et l'Exploitation des Procedes Georges ClaudeInventors: Erwin Penfornis, Ovidiu Marin, Bertrand Leroux, Remi P. Tsiava
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Patent number: 7022992Abstract: A method and apparatus for monitoring the flue gases of a furnace combustion process is disclosed. A by-pass circuit that communicates a sample of flue gases to be monitored from a furnace, through a measurement chamber and back to the furnace or furnace exhaust duct is provided. The by-pass circuit has a gas sampling probe with a fume inlet opening, the probe being positioned for withdrawing the sample to be monitored and transmitting it through the by-pass circuit. A measurement device is positioned in the measurement chamber and comprises an in situ optical device which provides real-time measurement of targeted flue gas species concentrations.Type: GrantFiled: December 9, 2002Date of Patent: April 4, 2006Assignee: American Air Liquide, Inc.Inventors: Michael Grant, Ovidiu Marin, Erwin Penfornis, William A. Von Drasek
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Patent number: 7014458Abstract: Methods and apparatus for combustion of a hydrocarbon fuel in a combustion chamber of a furnace or boiler are presented, the combustion normally using only air as an oxidant, part of the air entering the combustion chamber through one or more burners, and a remaining portion of air entering the combustion chamber at a plurality of locations downstream of the burners. The methods comprise injecting oxygen-enriched gas through a plurality of lances into the combustion chamber at a plurality of downstream locations, the oxygen-enriched gas injected at a velocity ranging from subsonic to supersonic, and the oxygen-enriched gas being present in an amount sufficient to provide an oxygen concentration of no more than 2% on a volume basis greater than when air is used alone as oxidant.Type: GrantFiled: December 8, 2003Date of Patent: March 21, 2006Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Ovidiu Marin, Benjamin Bugeat, Eric Streicher, Pietro Di Zanno
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Publication number: 20060032228Abstract: A power generation system includes a gas generator configured to receive an oxygen stream and a gaseous hydrocarbon fuel stream at an inlet of the gas generator, and a turbine section disposed downstream from the gas generator to receive and expand a combustion product stream from the gas generator. A heat exchange section is provided to facilitate heat exchange between a liquefied natural gas (LNG) supply from a LNG supply source and at least one other stream flowing within the system such that at least a portion of the LNG stream is converted to the gaseous hydrocarbon fuel stream that is to be delivered to the gas generator and the at least one other stream is cooled to a selected temperature.Type: ApplicationFiled: July 1, 2005Publication date: February 16, 2006Inventors: Ovidiu Marin, Ravikiran Sangras, Keith Pronske
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Publication number: 20050263203Abstract: An injection lance for injecting a fluid over a predefined target area within a system includes a support block with an inlet side and an outlet side. A plurality of channels are disposed non-parallel with respect to each other within the support block and extend between the inlet and outlet sides of the support block so as to receive fluid at the inlet side and deliver fluid through the support block for injection from the outlet side of the support block over the target area. At least two channels extend from the inlet side toward the outlet side in a direction away from a central axis of the support block, where the central axis intersects the outlet side. The target area includes a plurality of consecutively aligned sectors, and the channels are oriented within the support block so that a central axis of a fluid stream injected from each channel over the target area is centered between longitudinal boundaries defined by a respective sector.Type: ApplicationFiled: May 27, 2005Publication date: December 1, 2005Inventors: Ovidiu Marin, Scott Macadam, Benjamin Bugeat, Fabienne Chatel-Pelage
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Publication number: 20050256335Abstract: A chemical manufacturing system includes an air compressor configured to receive and pressurize a stream of air to a selected pressure, an air separation unit configured to receive pressurized air from the air compressor and generate a stream of oxygen and a stream of nitrogen at selected purity levels from the pressurized air, a chemical generation system configured to receive at least the stream of oxygen from the air separation unit, and a reactant supply to provide a reactant to the chemical generation system. During system operation, the reactant is oxidized to form a product within the chemical generation system. In one embodiment, the reactant is paraxylene, and the chemical generation system produces a terephthalic acid product.Type: ApplicationFiled: April 1, 2005Publication date: November 17, 2005Inventors: Ovidiu Marin, Manuel Binoist, Mindi Xu
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Publication number: 20050233274Abstract: A steam-generating combustion system includes an oxygen enriched gas provided as at least part of an oxidant stream. A combustion chamber receives and combusts a fuel in the oxidant stream and generate steam. The combustion chamber generates flue gas having a flue gas volume which is smaller than a volume of flue gas generated by the combustion chamber when operated with air as the oxidant stream. A flue gas pollutant control system receives the flue gas from the combustion chamber and reduces at least one of particulate matter, SOx, NOx, and mercury. The reduction in flue gas volume allows the implementation of much smaller pollutant control equipment, since the size of the pollutant control units is mainly based on the volume or mass flow rate of flue gas to be treated. Moreover, the system including oxygen-enriched gas in the oxidant will lead to concentrated levels of the pollutants in the flue gas.Type: ApplicationFiled: May 31, 2005Publication date: October 20, 2005Inventors: Ovidiu Marin, Scott Macadam, Erwin Penfornis, Fabienne Chatel-Pelage
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Publication number: 20050230500Abstract: A system and method are disclosed for lancing gas into an environment, such as a furnace, wherein an inner conduit is in communication with a gas supply and adapted to transport a gas at a first mass flow rate, and an outer conduit is in communication with a gas supply and adapted to transport a gas at a second mass flow rate. The first mass flow rate is greater than the second mass flow rate, preferably at least two times greater. The distal end of the inner conduit is preferably recessed back at a distance from the distal end of the outer conduit.Type: ApplicationFiled: April 13, 2005Publication date: October 20, 2005Inventors: Ovidiu Marin, Mahendra Joshi, Olivier Charon, Harley Borders
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Patent number: 6955051Abstract: Steam generation apparatus and methods are presented that are dedicated to oxygen-enriched air combustion of a fuel, wherein the oxygen concentration of the oxygen-enriched air may range from just above 21 percent to 100 percent. One apparatus comprises an oxygen-enriched air preheater through which oxygen-enriched air flows and exchanges heat indirectly with flue gas, creating a preheated oxygen-enriched air stream. The apparatus further comprises a boiler having a radiant section and a convection section, and other heat transfer units adapted to handle reduced flue gas flow rate and higher temperature flue gases than comparable air/fuel combustion boilers, thus allowing a smaller heat transfer surface area, a more compact design and a higher efficiency.Type: GrantFiled: September 11, 2003Date of Patent: October 18, 2005Assignee: American Air Liquide, Inc.Inventors: Ovidiu Marin, Olivier Charon, Erwin Penfornis
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Patent number: 6943886Abstract: A method for conducting laser absorption measurements in high temperature process streams having high levels of particulate matter is disclosed. An impinger is positioned substantially parallel to a laser beam propagation path and at upstream position relative to the laser beam. Beam shielding pipes shield the beam from the surrounding environment. Measurement is conducted only in the gap between the two shielding pipes where the beam propagates through the process gas. The impinger facilitates reduced particle presence in the measurement beam, resulting in improved SNR (signal-to-noise) and improved sensitivity and dynamic range of the measurement.Type: GrantFiled: January 29, 2003Date of Patent: September 13, 2005Assignees: Air Liquide America, L.P., L'Air Liquide- Societe Anonyme a'Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: William A. Von Drasek, Kenneth A. Mulderink, Ovidiu Marin
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Patent number: 6935251Abstract: A steam-generating combustion system includes an oxygen enriched gas provided as at least part of an oxidant stream. A combustion chamber receives and combusts a fuel in the oxidant stream and generate steam. The combustion chamber generates flue gas having a flue gas volume which is smaller than a volume of flue gas generated by the combustion chamber when operated with air as the oxidant stream. A flue gas pollutant control system receives the flue gas from the combustion chamber and reduces at least one of particulate matter, SOx, NOx, and mercury. The reduction in flue gas volume allows the implementation of much smaller pollutant control equipment, since the size of the pollutant control units is mainly based on the volume or mass flow rate of flue gas to be treated. Moreover, the system including oxygen-enriched gas in the oxidant will lead to concentrated levels of the pollutants in the flue gas.Type: GrantFiled: February 12, 2003Date of Patent: August 30, 2005Assignee: American Air Liquide, Inc.Inventors: Ovidiu Marin, Scott MacAdam, Erwin Penfornis, Fabienne Chatel-Pelage