Air Products and Chemicals, Inc.

Foster Wheeler Energy Corporation

Mark Daniel D'Agostini

Aleksandar Georgi Slavejkov

Anup Vasant Sane

Kevin Boyle Fogash

Xiaoyi He

Francis Anthony Milcetich

Reed Jacob Hendershot

Michael J Gallagher

Jeffrey Kloosterman

Bryan Clair Hoke, Jr

Michael David Buzinski

William Russell Welliver

Matthew James Watson

Avishek Guha

Kevin Alan Lievre

Craig Cain-Borgman

William J Horan

Stephane Bernard Poussou

Mahendra L Joshi

Jin Cao

Thomas David Matthew Lee

Christopher Michael Albright

Kevin Ray Heier

Gregory J Buragino

Michael Edward Habel

Stefan Laux

Alex Kravets

Tunc Goruney

Anandkumar Makwana

Kevin M Duffy

Joseph Michael Pietrantonio

Ashwin Vinod

Jeannine M Harris

Michael J Gallaher

A hydrogen injection scheme can be employed via use of one or more injectors for injecting hydrogen to help entrain local mass while also generating local turbulence that can enhance mixing with a mixture of air and fuel to facilitate enhanced lean combustion, lower peak flame temperatures of combustion, and reduce nitrous oxide (NO) emissions from the combustion of fuel. In some embodiments, the hydrogen can be injected to help transport heat released during combustion away from the injector to help avoid injector overheating as well. Different injectors can be utilized to provide a desired hydrogen injection scheme for a particular set of design and operational criteria for a gas turbine system or at least one combustion system that can be utilized in a gas turbine system.

Hydrogen injection for enhanced combustion stability in gas turbine systems

A burner gas supply apparatus for increasing flame turbulence, the apparatus comprising a conduit having a characteristic width, W, defined by an inner surface having a circumferential direction and an axial direction, the axial direction terminating in a nozzle defining a nozzle exit plane and having a characteristic dimension, d, where d&#x3c;=W; and three bluff bodies each with a characteristic dimension, D, projecting a length, Linto the conduit from the inner surface, and an axial spacing Xbetween adjacent bluff bodies (between the downstream bluff body and the nozzle exit plane in the case of X) wherein 0.5&#x3c;=L/W&#x3c;=1 and wherein X/D&#x3c;=30.

Oxy-fuel burner for glass forehearths

A combustor for a gas turbine engine having a compressor upstream of the combustor and a turbine downstream of the combustor. The combustor also includes a combustor chamber, an oxy-fuel pilot burner () centrally positioned at an end of the combustor chamber, and an air-fuel premix burner configured to at least partially premix air and fuel. The air-fuel premix burner surrounds the oxy-fuel pilot burner () in an annular configuration.

System and method of improving combustion stability in a gas turbine

A system and method for synchronized oxy-fuel boosting of a regenerative glass melting furnace including first and second sets of regenerative air-fuel burners, a first double-staged oxy-fuel burner mounted in a first wall, and a second double-staged oxy-fuel burner mounted in a second wall, each oxy-fuel burner having a primary oxygen valve to apportion a flow of oxygen between primary oxygen and staged oxygen and a staging mode valve to apportion the flow of staged oxygen between an upper staging port and a lower staging port in the respective burner, and a controller programmed to control the primary oxygen valve and the staging mode valve of each of the first and second oxy-fuel burners to adjust flame characteristics of the first and second oxy-fuel burners depending on the state of operation of the furnace.

System and method for synchronized oxy-fuel boosting of a regenerative glass melting furnace

A system for melting a pelleted charge material including a furnace having a feed end configured to receive a solid pelleted charge material and a discharge end opposite the feed end configured to discharge a molten charge material and a slag, a conveyor configured to feed the pelleted charge material into the feed end of the furnace, at least one oxy-fuel burner positioned to direct heat into a melting zone near the feed end to heat and at least partially melt the pelleted charge material to form the molten charge material and slag, wherein the oxy-fuel burner uses an oxidant having at least 70% molecular oxygen, and at least one flue for exhausting burner combustion products from the furnace.

Oxy-fuel combustion system and method for melting a pelleted charge material

An oxy-fuel burner including a central burner element having a central conduit terminating in a central nozzle and an annular conduit terminating in an annular nozzle surrounding the central conduit, the central conduit flowing a first reactant and the annular conduit flowing a second reactant; a first staging conduit spaced apart from a side of the central burner element and terminating in a first staging nozzle; a second staging conduit spaced apart from an opposite side the central burner element and terminating in a second staging nozzle; a first mechanism to apportion a flow of the second reactant into a non-zero primary flow of the second reactant directed to the annular conduit and a non-zero secondary flow of the second reactant; and a second mechanism to selectively apportion the secondary flow of the second reactant between the staging conduits; wherein one reactant is fuel and the other reactant is oxygen.

Double-staged oxy-fuel burner

An oxy-gaseous fuel burner () or a solid fuel burner () having an annular cavity () upstream from and proximate to an outlet plane () and a converging () or converging-diverging nozzle () located upstream from and proximal to the cavity (). The solid fuel burner () also is preferably operated so that the velocity of gas exiting a second annulus () is less than the velocity of gas exiting a central conduit ().

Solid fuel burner and method of operating

Oxygen-fuel burner with cavity-actuated mixing

An oxy-fuel burner () with monitoring including a fuel passage () terminating in a fuel nozzle (), a primary oxidant passage () terminating in an oxidant nozzle (), one or more sensors including a nozzle temperature sensor () for sensing at least one of an oxidant nozzle temperature and a fuel nozzle temperature, and a data processor () programmed to receive data from the sensors and to determine based on at least a portion of the received data the presence or absence of an abnormal burner condition including a potential partial obstruction of at least one of the primary oxidant passage () and the fuel passage () based on an increase or decrease in at least one of the oxidant nozzle temperature and the fuel nozzle temperature.

Burner with monitoring

A solid fuel/oxygen burner including an upstream section, an intermediary section, and a downstream section, a solid fuel conduit extending through the intermediary and downstream sections for transporting a mixture of solid fuel in a transport gas, the solid fuel conduit having a greater cross-sectional area in the downstream section than in the intermediary section, and a tubular fuel separator positioned within the solid fuel conduit in the downstream section, the fuel separator being bounded by an inlet plane and a outlet plane, the fuel separator dividing the fuel conduit into an inner nozzle having a cross-sectional area and an outer annular nozzle having a cross-sectional area, wherein the ratio of the outer nozzle cross-sectional area to the inner nozzle cross-sectional area measured at the outlet plane is greater than 1.

Solid fuel burner

A precombustor system () including an ignition chamber () having a front wall (), a central axis, a diameter D, and an outlet () configured to discharge a product gas (). The ignition chamber () includes a central ignition oxygen injector () configured to inject a first oxygen stream from the front wall () substantially parallel to the central axis, and a tangential primary fuel injector () configured to inject a primary fuel stream tangential to the central axis at a location an axial distance Xdownstream of the front wall (). The ratio X/Dis from 0.25 to 4.0. The central axis forms an angle a with a vertical line of less than or equal to about 45 degrees. The trajectory of the primary fuel stream forms an angle &#x3b8; with a plane that is perpendicular to the central axis of less than or equal to about 20 degrees. A method for combustion is also disclosed.

Precombustor system and method for combustion for biomass

A wide-flame solid fuel/oxygen burner including a fuel nozzle having an aspect ratio of at least about 2 defined by the ratio of a fuel nozzle width, W, measured along a major axis centerline, to a fuel nozzle height, H, measured along a minor axis centerline, and long walls spaced substantially symmetrically from the major axis centerline, the fuel nozzle having an inlet width, WN; and a pair of guide vanes positioned on either side of the major axis centerline between that centerline and an adjacent long wall, the guide vanes diverging from the major axis centerline in the flow direction by an angle such that the guide vanes are closer together at an upstream end and farther apart at a downstream end, thereby forming a central diffuser between the guide vanes and an outer converging nozzle between each guide vane and one of the long walls.

Wide-flame, oxy-solid fuel burner

A precombustor system to be used in conjunction with an oxy-fuel burner employing recycled flue gas is disclosed. A method of introducing streams into the precombustor to achieve desired improvements in flame properties is also disclosed.

Combustion system with precombustor for recycled flue gas

A fluid-cooled through-port oxy-fuel burner for converting an air-fuel regenerator port from air-fuel combustion to oxy-fuel combustion and an associated furnace and method. The oxy-fuel burner is suitable for installing through a regenerator port neck. The burner has an elbow-like bend to accommodate the geometry of the regenerator port neck. The burner has a cooling fluid jacket, a fuel conduit, a first oxidant conduit, and optionally an oxidant staging conduit.

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Ebensburg, PA, United States of America

Mark Daniel D'Agostini