Abrégé

A mercury removal system and methods thereof include at least one supply system, at least one cooling system and at least one separation system The supply system is connected to introduce at least beneficiated fly ash particles into an exhaust stream The exhaust stream comprises at least one exhaust gas and mercury and at least a portion of the mercury in the exhaust stream adheres to the introduced beneficiated fly ash particles The cooling system cools the exhaust stream before or after the connection of the supply system to the exhaust stream The separation system separates from the exhaust stream and outputs at least a portion of the introduced beneficiated fly ash particles with the adhered mercury.

Classes IPC  ?

• B01D 53/46 - Élimination des composants de structure définie

Abrégé

A method and system for reclaiming and beneficiating fly ash particles includes recovering at least a portion of fly ash particles from reclaimed feed and supplying at least a portion of the recovered fly ash particles to at least one mixing reactor (32) with a chamber where at least a portion of the supplied fly ash particles are thermally beneficiated in fluid bed reactor (18)

Classes IPC  ?

• C04B 18/06 - Résidus de combustion, p. ex. produits d'épuration des fumées, des émanations ou des gaz d'échappement

Abrégé

A method and system for controlling emissions with ammonia recovery and fly ash beneficiation in accordance with the present invention includes introducing ammonia to react with at least a portion of sulfur trioxides (3) in an exhaust emission an result in at least one or more ammoniated compounds (32). At least a portion of fly ash particles and the ammoniated compounds in the exhaust emission are precipitated (24) and at least the precipitated fly ash particles are beneficiated. At least a portion of the beneficiated fly ash particles which are heated are mixed with the precipitated ammoniated compounds to recover at least a portion o the ammonia. The recovered ammonia is reused in introducing ammonia (22) to react with at least a portion of sulfur trioxides.

Classes IPC  ?

• B01D 53/50 - Oxydes de soufre
• B01D 53/56 - Oxydes d'azote
• B01D 53/60 - Élimination simultanée des oxydes de soufre et des oxydes d'azote
• B01J 12/00 - Procédés chimiques généraux faisant réagir des milieux gazeux avec des milieux gazeuxAppareillage spécialement adapté à cet effet
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet

Abrégé

A method and system for controlling one or more emissions includes introducing ammonia to react with at least a portion of sulfur trioxides in an exhaust emission (32) and result in at least one or more ammoniated compounds. At least a portion of fly ash particles and the ammoniated compounds in the exhaust emission are precipitated (24). At least a portion of the ammonia from the precipitated ammoniated compounds is recovered (26) with heat from the exhaust emission (38(3))and the recovered ammonia (40(1)) is reused.

Classes IPC  ?

• B01D 46/50 - Moyens de décharge du potentiel électrostatique
• B01D 53/50 - Oxydes de soufre
• B01D 53/56 - Oxydes d'azote
• B01D 53/60 - Élimination simultanée des oxydes de soufre et des oxydes d'azote
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• B01J 12/00 - Procédés chimiques généraux faisant réagir des milieux gazeux avec des milieux gazeuxAppareillage spécialement adapté à cet effet
• C01C 1/02 - Préparation ou séparation d'ammoniac
• C01C 1/242 - Préparation à partir d'ammoniaque et d'acide sulfurique ou d'anhydride sulfurique

Abrégé

A system and method for decomposing ammonia from fly ash contaminated with ammonia is provided which includes maintaining the temperature of a bed of ammonia- contaminated fly ash at a decomposition temperature greater than 500°F and less than 842°F to decompose the ammonia from the fly ash. In a preferred embodiment, the ammonia- laden fly ash is maintained at a temperature less than a lowest carbon combustion temperature at which substantial combustion of carbon in fly ash begins to occur. A preferred embodiment includes a first chamber operating at a decomposition temperature greater than 5000F and less than 842°F followed by a second chamber operating at a higher carbon combustion temperature for carbon burn-out.

Classes IPC  ?

• C01C 1/02 - Préparation ou séparation d'ammoniac

Abrégé

A system (10) and method for beneficiation of fly ash particles (43) which at least partially reduces sulfur emissions includes at least one mixing reactor (12) with a chamber (26) and at least one exhaust (58), at least one fly ash source connected to provide fly ash particles to the chamber, at least one sorbent (18) source, and at least one sluid supply system (82). The sorbent source provides at leas one type of sorbent particles to be mixed with the fly ash particles to reduce sulfur emissions. A mass of the fly ash particles in the chamber is greater than a mass of the sorbent particles in the chamber. The fluid supply system provides at least one fluid to the chamber during a beneficiation of at least a portion of the fly ash particles in the chamber.

Classes IPC  ?

• C04B 18/04 - DéchetsRésidus