Patents by Inventor Jeffrey Michael Broderick
Jeffrey Michael Broderick 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: 10583393Abstract: A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.Type: GrantFiled: January 5, 2018Date of Patent: March 10, 2020Assignee: CECO ENVIRONMENTAL IP INC.Inventors: James M. Valentine, Jeffrey Michael Broderick, Thomas V. Eldredge, Saiprasad Jangiti, Eric Lindemann
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Publication number: 20180274779Abstract: A system for controlling a reagent flow to a furnace in a SCNR process includes at least one injection distribution module (IDM) for supplying water to a plurality of injection lances, metering valves for supplying a NOx reducing agent to the plurality of injection lances, wherein the reagent injection rate of each injection lance is controlled by one metering valve such that a reagent concentration in each injection lance is adjustable and variable from one another. A method for controlling a reagent flow to a furnace includes providing at least one IDM, and for each IDM, providing a plurality of injection lances in communication with the IDM, supplying water to the plurality of injection lances through the IDM and supplying a NOx reducing agent through metering valves, wherein each metering valve controls the reagent injection rate to one injection lance.Type: ApplicationFiled: May 29, 2018Publication date: September 27, 2018Inventors: James M. Valentine, Edmund S. Schindler, Jeffrey Michael Broderick, R. Gifford Broderick, John N. Dale
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Patent number: 10006633Abstract: A system for controlling a reagent flow to a furnace in a SCNR process includes at least one injection distribution module (IDM) for supplying water to a plurality of injection lances, metering valves for supplying a NOx reducing agent to the plurality of injection lances, wherein the reagent injection rate of each injection lance is controlled by one metering valve such that a reagent concentration in each injection lance is adjustable and variable from one another. A method for controlling a reagent flow to a furnace includes providing at least one IDM, and for each IDM, providing a plurality of injection lances in communication with the IDM, supplying water to the plurality of injection lances through the IDM and supplying a NOx reducing agent through metering valves, wherein each metering valve controls the reagent injection rate to one injection lance.Type: GrantFiled: June 3, 2015Date of Patent: June 26, 2018Assignee: PEERLESS MFG. COInventors: James M. Valentine, Edmund S. Schindler, Jeffrey Michael Broderick, R. Gifford Broderick, John N. Dale
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Publication number: 20180126332Abstract: A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.Type: ApplicationFiled: January 5, 2018Publication date: May 10, 2018Applicant: PEERLESS MFG. COInventors: James M. VALENTINE, Jeffrey Michael BRODERICK, Thomas V. ELDREDGE, Saiprasad JANGITI, Eric LINDEMANN
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Patent number: 9869226Abstract: In a large exhaust duct from a lean burn combustion source, such as a boiler, diesel engine or gas turbine, multiple injectors can be used to inject a reagent, such as an aqueous solution of urea or ammonia, into the exhaust for use in the catalytic reduction of NOx in a process known in the art as selective catalytic reduction (SCR). When operating at low injection rates, such as during low combustor loads, the injectors are operated individually for short periods of time in a sequential manner.Type: GrantFiled: May 30, 2014Date of Patent: January 16, 2018Assignee: PEERLESS MFG. CO.Inventors: Jeffrey Michael Broderick, Scott H. Lindemann, Eric Lindemann, James M. Valentine
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Patent number: 9861934Abstract: A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.Type: GrantFiled: June 4, 2015Date of Patent: January 9, 2018Assignee: PEERLESS MFG.COInventors: James M. Valentine, Jeffrey Michael Broderick, Thomas V. Eldredge, Saiprasad Jangiti, Eric Lindemann
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Patent number: 9746177Abstract: A lean burn combustion source includes a first side stream comprising an inlet and an outlet, both positioned downstream of a furnace and upstream of a particulate control device, and a second side stream comprising: an inlet positioned downstream of the particulate control device and upstream of the catalyst, a heat exchanger section passing through the first side stream, whereby heat from hot exhaust gas flowing through the first side stream is transferred to hot exhaust gas flowing through the second side stream, an injector positioned in the second side stream injecting aqueous based reagent into the hot exhaust gas flowing through the second side stream such that the aqueous based reagent decomposes to ammonia gas, and an outlet in fluid communication with a reagent distribution device positioned in the primary exhaust gas stream downstream of the particulate control device and upstream of the catalyst.Type: GrantFiled: November 12, 2013Date of Patent: August 29, 2017Assignee: PEERLESS MFG. CO.Inventors: R. Gifford Broderick, Jeffrey Michael Broderick, Kathryn V. O'Leary, Scott H. Lindemann, James M. Valentine
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Patent number: 9593609Abstract: A method for reducing NOx emissions in the exhaust of a combined cycle gas turbine equipped with a heat recovery boiler and a catalyst effective for NOx reduction, wherein a slip stream of hot flowing exhaust gases is withdrawn from the primary gas flow after the catalyst at a temperature of 500° F. to 900° F. and directed through a fan to a continuous duct into which an aqueous based reagent is injected for decomposition to ammonia gas and the outlet of the continuous duct is connected to an injection grid positioned in the primary exhaust for injection of ammonia gas into the primary exhaust stream at a location upstream of the catalyst.Type: GrantFiled: October 3, 2013Date of Patent: March 14, 2017Assignee: PEERLESS MFG. CO.Inventors: Jeffrey Michael Broderick, Kathryn V. O'Leary, R. Gifford Broderick, John N. Dale, James M. Valentine
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Publication number: 20150352491Abstract: A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.Type: ApplicationFiled: June 4, 2015Publication date: December 10, 2015Inventors: James M. Valentine, Jeffrey Michael Broderick, Thomas V. Eldredge, Saiprasad Jangiti, Eric Lindemann
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Publication number: 20150345785Abstract: A system for controlling a reagent flow to a furnace in a SCNR process includes at least one injection distribution module (IDM) for supplying water to a plurality of injection lances, metering valves for supplying a NOx reducing agent to the plurality of injection lances, wherein the reagent injection rate of each injection lance is controlled by one metering valve such that a reagent concentration in each injection lance is adjustable and variable from one another. A method for controlling a reagent flow to a furnace includes providing at least one IDM, and for each IDM, providing a plurality of injection lances in communication with the IDM, supplying water to the plurality of injection lances through the IDM and supplying a NOx reducing agent through metering valves, wherein each metering valve controls the reagent injection rate to one injection lance.Type: ApplicationFiled: June 3, 2015Publication date: December 3, 2015Inventors: James M. Valentine, Edmund S. Schindler, Jeffrey Michael Broderick, R. Gifford Broderick, John N. Dale
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Publication number: 20150093315Abstract: A system for controlling reagent flow to an exhaust of a lean burn combustion source includes a plurality of decomposition ducts each being connected to at least one injection lance of a reagent injection grid and supplying reagent and hot carrier gas to the injection lance, and at least one metering valve in communication with each of the plurality of decomposition ducts that controls reagent injection rate to the injection lance. A method of controlling a reagent flow to an exhaust of a lean burn combustion source includes providing a reagent injection grid having at least one injection lance, supplying the reagent and hot carrier gas to the reagent injection grid from a plurality of decomposition ducts coupled to the injection grid, and controlling reagent injection rate to the injection grid via at least one metering valve in communication with each of the plurality of decomposition ducts.Type: ApplicationFiled: September 29, 2014Publication date: April 2, 2015Inventors: Jeffrey Michael Broderick, Scott H. Lindemann, R. Gifford Broderick, Edmund S. Schindler, James M. Valentine
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Publication number: 20140360168Abstract: In a large exhaust duct from a lean burn combustion source, such as a boiler, diesel engine or gas turbine, multiple injectors can be used to inject a reagent, such as an aqueous solution of urea or ammonia, into the exhaust for use in the catalytic reduction of NOx in a process known in the art as selective catalytic reduction (SCR). When operating at low injection rates, such as during low combustor loads, the injectors are operated individually for short periods of time in a sequential manner.Type: ApplicationFiled: May 30, 2014Publication date: December 11, 2014Inventors: Jeffrey Michael Broderick, Scott H. Lindemann, Eric Lindemann, James M. Valentine
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Patent number: 8815196Abstract: A method for reducing NOx emissions from a lean burn combustor equipped with a NOx reducing exhaust catalyst, includes at least the following steps: (i) generating a computer based model of the geometry of an exhaust system of the combustor; (ii) computing at least one of flue gas velocity profiles and mass flow stream lines for exhaust gas flow through the exhaust system; (iii) inputting injector data comprising at least droplet size and velocity; (iv) modeling droplet trajectories for a plurality of injector locations; (v) modeling at least one flow conditioning device in the exhaust system; and (vi) manipulating the computer based model until an injector location is identified that provides a predicted root mean square (RMS) of reagent at the face of the catalyst that is less than 15%.Type: GrantFiled: October 4, 2013Date of Patent: August 26, 2014Assignee: Peerless Mfg. Co.Inventors: Saiprasad Jangiti, Thomas V. Eldredge, Jeffrey Michael Broderick, James M. Valentine
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Patent number: 8815197Abstract: A method of reducing NOx emissions from a lean burn combustion source employs an aqueous solution of reagent that is injected into a continuous decomposition duct at a rate of 0.2-10 gph with a flowing side stream of hot gas at a rate of 150-3000 scfm and a temperature of greater than 700° F. in the decomposition duct such that the aqueous reagent is converted to ammonia gas that is conveyed by the continuous decomposition duct to an ammonia injection grid that is placed in a primary exhaust stream from the combustion source upstream of a NOx reducing catalyst and NOx is reduced.Type: GrantFiled: October 7, 2013Date of Patent: August 26, 2014Assignee: Peerless Mfg. Co.Inventors: Jeffrey Michael Broderick, Scott H. Lindemann, James M. Valentine
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Publication number: 20140134061Abstract: A lean burn combustion source includes a first side stream comprising an inlet and an outlet, both positioned downstream of a furnace and upstream of a particulate control device, and a second side stream comprising: an inlet positioned downstream of the particulate control device and upstream of the catalyst, a heat exchanger section passing through the first side stream, whereby heat from hot exhaust gas flowing through the first side stream is transferred to hot exhaust gas flowing through the second side stream, an injector positioned in the second side stream injecting aqueous based reagent into the hot exhaust gas flowing through the second side stream such that the aqueous based reagent decomposes to ammonia gas, and an outlet in fluid communication with a reagent distribution device positioned in the primary exhaust gas stream downstream of the particulate control device and upstream of the catalyst.Type: ApplicationFiled: November 12, 2013Publication date: May 15, 2014Inventors: R. Gifford Broderick, Jeffrey Michael Broderick, Kathryn V. O'Leary, Scott H. Lindemann, James M. Valentine
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Publication number: 20140096532Abstract: A method for reducing NOx emissions in the exhaust of a combined cycle gas turbine equipped with a heat recovery boiler and a catalyst effective for NOx reduction, wherein a slip stream of hot flowing exhaust gases is withdrawn from the primary gas flow after the catalyst at a temperature of 500° F. to 900° F. and directed through a fan to a continuous duct into which an aqueous based reagent is injected for decomposition to ammonia gas and the outlet of the continuous duct is connected to an injection grid positioned in the primary exhaust for injection of ammonia gas into the primary exhaust stream at a location upstream of the catalyst.Type: ApplicationFiled: October 3, 2013Publication date: April 10, 2014Inventors: Jeffrey Michael Broderick, Kathryn V. O'Leary, R. Gifford Broderick, John N. Dale, James M. Valentine
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Publication number: 20140099248Abstract: A method of reducing NOx emissions from a lean burn combustion source employs an aqueous solution of reagent that is injected into a continuous decomposition duct at a rate of 0.2-10 gph with a flowing side stream of hot gas at a rate of 150-3000 scfm and a temperature of greater than 700° F. in the decomposition duct such that the aqueous reagent is converted to ammonia gas that is conveyed by the continuous decomposition duct to an ammonia injection grid that is placed in a primary exhaust stream from the combustion source upstream of a NOx reducing catalyst and NOx is reduced.Type: ApplicationFiled: October 7, 2013Publication date: April 10, 2014Inventors: Jeffrey Michael Broderick, Scott H. Lindemann, James M. Valentine
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Publication number: 20140099247Abstract: A method for reducing NOx emissions from a lean burn combustor equipped with a NOx reducing exhaust catalyst, includes at least the following steps: (i) generating a computer based model of the geometry of an exhaust system of the combustor; (ii) computing at least one of flue gas velocity profiles and mass flow stream lines for exhaust gas flow through the exhaust system; (iii) inputting injector data comprising at least droplet size and velocity; (iv) modeling droplet trajectories for a plurality of injector locations; (v) modeling at least one flow conditioning device in the exhaust system; and (vi) manipulating the computer based model until an injector location is identified that provides a predicted root mean square (RMS) of reagent at the face of the catalyst that is less than 15%.Type: ApplicationFiled: October 4, 2013Publication date: April 10, 2014Inventors: Saiprasad Jangiti, Thomas V. Eldredge, Jeffrey Michael Broderick, James M. Valentine
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Patent number: 8591849Abstract: A system and method for reducing NOx emissions from a lean burn combustion source is provided. The system includes a blower passing air through a continuous duct having a hot portion and a reaction portion. The hot portion of the duct is positioned in the convective zone of the combustion source to heat the passing air for the reaction portion of the duct. An injector attached to a urea storage container is positioned in the reaction portion of the duct and sprays urea from the storage container into the heated air in the reaction duct for evaporation and decomposition into ammonia gas. The ammonia gas is then supplied to an injection grid in the exhaust duct of the lean burn combustion source upstream of a NOx reduction catalyst. The injection grid supplies the ammonia gas to the exhaust gas in the exhaust duct.Type: GrantFiled: April 16, 2013Date of Patent: November 26, 2013Assignee: Combustion Components Associates, Inc.Inventors: James M. Valentine, Jeffrey Michael Broderick, Scott H. Lindemann, R. Gifford Broderick, Edmund S. Schindler
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Publication number: 20130272940Abstract: A system and method for reducing NOx emissions from a lean burn combustion source is provided. The system includes a blower passing air through a continuous duct having a hot portion and a reaction portion. The hot portion of the duct is positioned in the convective zone of the combustion source to heat the passing air for the reaction portion of the duct. An injector attached to a urea storage container is positioned in the reaction portion of the duct and sprays urea from the storage container into the heated air in the reaction duct for evaporation and decomposition into ammonia gas. The ammonia gas is then supplied to an injection grid in the exhaust duct of the lean burn combustion source upstream of a NOx reduction catalyst. The injection grid supplies the ammonia gas to the exhaust gas in the exhaust duct.Type: ApplicationFiled: April 16, 2013Publication date: October 17, 2013Inventors: James M. Valentine, Jeffrey Michael Broderick, Scott H. Lindemann, R. Gifford Broderick, Edmund S. Schindler