Patents by Inventor Dennis James Laslo
Dennis James Laslo 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: 9700837Abstract: A wet scrubber (10) useful for cleaning a process gas (F) comprising at least a first spray level system (40) and a second spray level system (48) arranged compactly vertically above the first spray level system (40) in a wet scrubber tower (14). Each spray level system (40, 48) is equipped with a plurality of atomizing flattened relatively wide spray angle nozzles (56) for atomizing an absorption liquid (AL) supplied thereto for contact and intermixing with the process gas (F) for removal of environmental pollutants therefrom.Type: GrantFiled: July 18, 2013Date of Patent: July 11, 2017Assignee: General Electric Technology GmbHInventor: Dennis James Laslo
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Patent number: 9550688Abstract: An apparatus and method for producing a catalyst rich seawater useful to catalyze oxidation reactions in a flue gas desulfurization system seawater aeration basin to obtain a treated seawater.Type: GrantFiled: September 18, 2013Date of Patent: January 24, 2017Assignee: General Electric Technology GmbHInventors: Dennis James Laslo, Raymond R. Gansley
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Patent number: 9468885Abstract: A method and apparatus or system is provided for cleaning a flue gas and/or cooling a flue gas with a dispersed finely divided absorption liquid. As such, the absorption liquid is dispersed in a wet scrubber through which flue gas flows for absorption liquid and flue gas intermingling and contact to produce a cleaned flue gas. The absorption liquid supplied to the wet scrubber is dispersed from upwardly spraying anti-clogging nozzles and downwardly spraying nozzles arranged to maximize absorption liquid and flue gas contact with minimal spray interference between nozzles.Type: GrantFiled: May 9, 2016Date of Patent: October 18, 2016Assignee: General Electric Technology GmbHInventors: Dennis James Laslo, Rikard Hakansson, Fredrik Jens Brogaard, Kerstin Margareta Forsgren, Karl Hognefelt
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Publication number: 20160250587Abstract: A method and apparatus or system is provided for cleaning a flue gas and/or cooling a flue gas with a dispersed finely divided absorption liquid. As such, the absorption liquid is dispersed in a wet scrubber through which flue gas flows for absorption liquid and flue gas intermingling and contact to produce a cleaned flue gas. The absorption liquid supplied to the wet scrubber is dispersed from upwardly spraying anti-clogging nozzles and downwardly spraying nozzles arranged to maximize absorption liquid and flue gas contact with minimal spray interference between nozzles.Type: ApplicationFiled: May 9, 2016Publication date: September 1, 2016Inventors: Dennis James LASLO, Rikard HAKANSSON, Fredrik Jens BROGAARD, Kerstin Margareta FORSGREN, Karl HOGNEFELT
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Patent number: 9364781Abstract: A method and apparatus or system is provided for cleaning a flue gas and/or cooling a flue gas with a dispersed finely divided absorption liquid. As such, the absorption liquid is dispersed in a wet scrubber through which flue gas flows for absorption liquid and flue gas intermingling and contact to produce a cleaned flue gas. The absorption liquid supplied to the wet scrubber is dispersed from upwardly spraying anti-clogging nozzles and downwardly spraying nozzles arranged to maximize absorption liquid and flue gas contact with minimal spray interference between nozzles.Type: GrantFiled: October 11, 2013Date of Patent: June 14, 2016Assignee: ALSTOM Technology LtdInventors: Dennis James Laslo, Karl Hognefelt, Rikard Häkansson, Kerstin Forsgren, Fredrik Jens Brogaard
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Patent number: 9321006Abstract: A system and method for controlling oxidation of sulfites in a slurry. The system includes a tank having an inlet for receiving a slurry used in wet flue gas desulfurization. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is configured so that at least a portion of the gas received in the tank is dispersed through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration S1 of the slurry received in the tank. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system includes a controller. Software executing on the controller generates a signal indicative of an adjustment of a flow rate of gas into the tank based at least in part on the sulfite concentration S1.Type: GrantFiled: May 11, 2012Date of Patent: April 26, 2016Assignee: ALSTOM Technology LtdInventor: Dennis James Laslo
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Patent number: 9321025Abstract: A system and method for controlling oxidation of sulfites in a slurry. The system includes a tank having an inlet for receiving a slurry used in wet flue gas desulfurization. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is configured so that at least a portion of the gas received in the tank is dispersed through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration S1 of the slurry received in the tank. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system includes a controller. Software executing on the controller generates a signal indicative of an adjustment of a flow rate of gas into the tank based at least in part on the sulfite concentration S1.Type: GrantFiled: June 11, 2015Date of Patent: April 26, 2016Assignee: ALSTOM Technology LtdInventors: Raymond Raulfs Gansley, Rikard Håkansson, Kerstin Margareta Forsgren, Dennis James Laslo
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Publication number: 20150273428Abstract: A system and method for controlling oxidation of sulfites in a slurry. The system includes a tank having an inlet for receiving a slurry used in wet flue gas desulfurization. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is configured so that at least a portion of the gas received in the tank is dispersed through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration S1 of the slurry received in the tank. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system includes a controller. Software executing on the controller generates a signal indicative of an adjustment of a flow rate of gas into the tank based at least in part on the sulfite concentration S1.Type: ApplicationFiled: June 11, 2015Publication date: October 1, 2015Inventors: Raymond Raulfs GANSLEY, Rikard HÅKANSSON, Kerstin Margareta FORSGREN, Dennis James LASLO
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Publication number: 20150101485Abstract: A method and apparatus or system is provided for cleaning a flue gas and/or cooling a flue gas with a dispersed finely divided absorption liquid. As such, the absorption liquid is dispersed in a wet scrubber through which flue gas flows for absorption liquid and flue gas intermingling and contact to produce a cleaned flue gas. The absorption liquid supplied to the wet scrubber is dispersed from upwardly spraying anti-clogging nozzles and downwardly spraying nozzles arranged to maximize absorption liquid and flue gas contact with minimal spray interference between nozzles.Type: ApplicationFiled: October 11, 2013Publication date: April 16, 2015Inventors: Dennis James Laslo, Karl Hognefelt, Rikard Häkansson, Kerstin Forsgren, Fredrik Jens Brogaard
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Publication number: 20150076081Abstract: An apparatus and method for producing a catalyst rich seawater useful to catalyze oxidation reactions in a flue gas desulfurization system seawater aeration basin to obtain a treated seawater.Type: ApplicationFiled: September 18, 2013Publication date: March 19, 2015Applicant: ALSTOM Technology LtdInventors: Dennis James Laslo, Raymond R. Gansley
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Publication number: 20150023855Abstract: A wet scrubber (10) useful for cleaning a process gas (F) comprising at least a first spray level system (40) and a second spray level system (48) arranged compactly vertically above the first spray level system (40) in a wet scrubber tower (14). Each spray level system (40, 48) is equipped with a plurality of atomizing flattened relatively wide spray angle nozzles (56) for atomizing an absorption liquid (AL) supplied thereto for contact and intermixing with the process gas (F) for removal of environmental pollutants therefrom.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Inventor: Dennis James Laslo
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Patent number: 8828341Abstract: A method for reducing mercury emission and/or re-emission in cleaned flue gas through control of sulfite concentration within a wet flue gas desulfurization (WFGD) system is disclosed. One method for reducing mercury emission and/or re-emission through control of sulfite concentration is to measure the sulfite concentration of an aqueous alkaline slurry used in a WFGD system and comparing the same to a predetermined sulfite concentration value. If the comparison reveals the measured sulfite concentration is above the predetermined values, the amount of oxidation air supplied to the system is increased. If the comparison reveals the measured sulfite concentration is below the predetermined values, the amount of oxidation air supplied to the system is decreased.Type: GrantFiled: July 18, 2013Date of Patent: September 9, 2014Assignee: ALSTOM Technology LtdInventors: Per-Erik Albert Appelo, Dennis James Laslo
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Patent number: 8662481Abstract: A system & Method for Preventing Scaling in a Flue Gas Desulphurization System is provided. The system includes an injector configured to direct a barrier fluid toward a surface that is otherwise susceptible to scaling when it comes in contact with super-saturated alkaline solutions such as slurry used to capture CO2 from a flue gas stream.Type: GrantFiled: August 22, 2013Date of Patent: March 4, 2014Assignee: ALSTOM Technology LtdInventor: Dennis James Laslo
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Patent number: 8663586Abstract: A method and system for high performance mercury capture from solid fuel combustion flue gas is provided. The method includes injecting pulverized activated carbon into a mercury capture system with at least a first and a second fabric filter, collecting the pulverized activated carbon captured in the second fabric filter, and injecting the collected pulverized activated carbon from the second fabric filter upstream of the first fabric filter for reuse to capture mercury from the process gas.Type: GrantFiled: May 2, 2013Date of Patent: March 4, 2014Assignee: ALSTOM Technology LtdInventor: Dennis James Laslo
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Patent number: 8657925Abstract: A method of scrubbing flue gas includes introducing flue gas comprising an acidic gas through an inlet into a tower; spraying an acid-absorptive fluid into the tower such that the acid-absorptive fluid contacts the flue gas; accumulating the acid-absorptive fluid in a recycle tank portion of the tower; and introducing an oxygen-containing gas into the acid-absorptive fluid in the recycle tank portion of the tower, wherein the oxygen-containing gas is introduced through at least one opening of an aerator, each of the at least one openings are positioned to release the oxygen-containing gas at least at a distance greater than or equal to a predetermined radial distance from the flue gas inlet, the predetermined radial distance being equal to at least 10% of a diameter of the recycle tank portion of the tower.Type: GrantFiled: March 8, 2013Date of Patent: February 25, 2014Assignee: ALSTOM Technology LtdInventor: Dennis James Laslo
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Publication number: 20140044623Abstract: A method and system for high performance mercury capture from solid fuel combustion flue gas is provided. The method includes injecting pulverized activated carbon into a mercury capture system with at least a first and a second fabric filter, collecting the pulverized activated carbon captured in the second fabric filter, and injecting the collected pulverized activated carbon from the second fabric filter upstream of the first fabric filter for reuse to capture mercury from the process gas.Type: ApplicationFiled: May 2, 2013Publication date: February 13, 2014Applicant: ALSTOM Technology LtdInventor: Dennis James Laslo
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Publication number: 20130336869Abstract: A system & Method for Preventing Scaling in a Flue Gas Desulphurization System is provided. The system includes an injector configured to direct a barrier fluid toward a surface that is otherwise susceptible to scaling when it comes in contact with super-saturated alkaline solutions such as slurry used to capture CO2 from a flue gas stream.Type: ApplicationFiled: August 22, 2013Publication date: December 19, 2013Applicant: ALSTOM Technology LtdInventor: Dennis James Laslo
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Publication number: 20130298762Abstract: A system and method for controlling oxidation of sulfites in a slurry. The system includes a tank having an inlet for receiving a slurry used in wet flue gas desulfurization. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is configured so that at least a portion of the gas received in the tank is dispersed through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration S1 of the slurry received in the tank. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system includes a controller. Software executing on the controller generates a signal indicative of an adjustment of a flow rate of gas into the tank based at least in part on the sulfite concentration S1.Type: ApplicationFiled: May 11, 2012Publication date: November 14, 2013Inventor: Dennis James Laslo
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Patent number: 8480983Abstract: A wet flue gas desulfurization (WFGD) system includes an absorber vessel operable to remove pollutants from flue gas supplied thereto. The absorber vessel defines a slurry section for containing a reagent slurry therein and an outlet in fluid communication with the slurry section. The WFGD system includes a mercury removal vessel in fluid communication with outlet. The mercury removal vessel has activated carbon disposed therein.Type: GrantFiled: March 15, 2012Date of Patent: July 9, 2013Assignee: Alstom Technology LtdInventors: Dennis James Laslo, Raymond Raulfs Gansley