Alstom Technology Limited

General Electric Technology Gmbh

Dennis James Laslo

Raymond Raulfs Gansley

Kerstin Margareta Forsgren

David James Muraskin

Fredrik Jens Brogaard

Karl Hognefelt

Eli Gal

Rikard Håkansson

Frederic Zenon Kozak

Per-Erik Albert Appelo

Otto Morten Bade

Michael J Rini

Michael G Varner

Jurgen Dopatka

Rikard Häkansson

Michael Chiang

Raymond R Gansley

A wet scrubber () useful for cleaning a process gas (F) comprising at least a first spray level system () and a second spray level system () arranged compactly vertically above the first spray level system () in a wet scrubber tower (). Each spray level system () is equipped with a plurality of atomizing flattened relatively wide spray angle nozzles () for atomizing an absorption liquid (AL) supplied thereto for contact and intermixing with the process gas (F) for removal of environmental pollutants therefrom.

Wet scrubber nozzle system and method of use for cleaning a process gas

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.

Method and apparatus for catalyzing seawater aeration basins

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.

Method and apparatus for wet desulfurization spray towers

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 Sof 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 S.

Oxidation control for improved flue gas desulfurization performance

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.

Sulfite control to reduce mercury re-emission

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.

High performance mercury capture

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.

System and method for preventing scaling in a flue gas desulphurization system

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.

Method for flue gas scrubbing

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.

Mercury capture system and method for a wet flue gas desulfurization system

An apparatusfor scrubbing flue gas, the apparatusincluding a towerhaving an inletreceiving a flow of flue gasand a recycle tank portion; a fluiddisposed in the recycle tank portion; and an aeratorhaving at least one openingfor introduction of an oxygen-containing gasinto the fluid, wherein the at least one openingis positioned to release the oxygen-containing gasat least at a distance greater than or equal to a predetermined radial distance F from the inlet, the predetermined radial distance F being equal to at least 10% of a diameter of the recycle tank portion

System and method for flue gas scrubbing

An ammonia based CO2 capture system and method is provided in which multiple absorption stages are provided. Each absorption stage delivers an ionic solution at a predetermined temperature and contacts it with a flue gas stream.

Multi-stage CO2 removal system and method for processing a flue gas stream

A spray tower () for improving contact between a gas stream () and a fluid (). The spray tower () includes a tank () having an inlet () and an outlet (), and a plurality of spray nozzles () positioned in the tank, each of the plurality of spray nozzles including a spray outlet (). Each of the plurality of spray nozzles () is adapted to spray a cone () of the fluid () through the spray outlet () into the tank (). The spray tower () also includes a perforated plate () having a plurality of perforations (). The perforated plate () is positioned in the tank () so as to define a cross-section of the tank and each of the plurality of perforations () is aligned with the cone () flowing from the spray outlet () of one of the spray nozzles.

Growing community of inventors

Ten Mile, TN, United States of America

Dennis James Laslo