Vitali Victor Lissianski - San Juan Capistrano CA, US Peter Martin Maly - Lake Forest CA, US William Randall Seeker - San Clemente CA, US Roy Payne - Mission Vierjo CA, US Vladimir M. Zamansky - Oceanside CA, US Loc Ho - Sparks NV, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F23J015/00
US Classification:
110345, 110344, 423210
Abstract:
A method to reduce mercury in gas emissions from the combustion of coal is disclosed. Mercury emissions can be reduced by staging combustion process and/or reducing boiler excess oxygen. Fly ash formed under combustion staging conditions is more reactive towards mercury than fly ash formed under typical combustion conditions. Reducing boiler excess oxygen can also improve ability of fly ash to adsorb mercury.
Mercury Reduction System And Method In Combustion Flue Gas Using Staging
Vitali Victor Lissianski - San Juan Capistrano CA, US Peter Martin Maly - Lake Forest CA, US William Randall Seeker - San Clemente CA, US Roy Payne - Mission Vierjo CA, US Vladimir M. Zamansky - Oceanside CA, US Loc Ho - Sparks NV, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F23J 15/00
US Classification:
110345, 110347
Abstract:
A method to reduce mercury in gas emissions from the combustion of coal is disclosed. Mercury emissions can be reduced by staging combustion process and/or reducing boiler excess oxygen. Fly ash formed under combustion staging conditions is more reactive towards mercury than fly ash formed under typical combustion conditions. Reducing boiler excess oxygen can also improve ability of fly ash to adsorb mercury.
Method And Apparatus For Utilization Of Partially Gasified Coal For Mercury Removal
Vitali Victor Lissianski - San Juan Capistrano CA, US Peter Martin Maly - Lake Forest CA, US William Randall Seeker - San Clemente CA, US Loc Ho - Sparks NV, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F23J 15/00
US Classification:
110345, 110347, 110203, 95134
Abstract:
A method for capturing mercury in a flue gas formed by solid fuel combustion including: combusting coal, wherein mercury released during combustion is entrained in flue gas generated by the combustion; generating a thermally activated carbon-containing sorbent by partially gasifying a solid fuel in a gasifier local to the combustion of solid fuel; injecting the gasified gas products into the combustion of coal; injecting the thermally activated sorbent in the flue gas, and collecting the injected sorbent in a waste treatment system.
Mercury Reduction System And Method In Combustion Flue Gas Using Staging
Vitali Victor Lissianski - San Juan Capistrano CA, US Peter Martin Maly - Lake Forest CA, US William Randall Seeker - San Clemente CA, US Roy Payne - Mission Vierjo CA, US Vladimir M. Zamansky - Oceanside CA, US Loc Ho - Sparks NV, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F23J 11/00
US Classification:
110345, 110204, 95134
Abstract:
A method to reduce mercury in gas emissions from the combustion of coal is disclosed. Mercury emissions can be reduced by staging combustion process and/or reducing boiler excess oxygen. Fly ash formed under combustion staging conditions is more reactive towards mercury than fly ash formed under typical combustion conditions. Reducing boiler excess oxygen can also improve ability of fly ash to adsorb mercury.
Methods For Removing Air Pollutants From Combustion Flue Gas
Vladimir M. Zamansky - San Clemente CA Loc Ho - Anaheim CA William Randall Seeker - San Clemente CA
Assignee:
Energy and Environmental Research Corporation - Irvine CA
International Classification:
C01B 2100 C01B 1720 C01B 3118 C07C 1124
US Classification:
423210
Abstract:
A method is provided for preventing the release of air pollutants with combustion flue gases emitted to the atmosphere by the removal of one or more of nitric oxide, sulfur trioxide, light hydrocarbons, carbon monoxide, and trace amounts of mercury from combustion flue gas streams. The method converts nitric oxide to nitrogen dioxide, sulfur trioxide to sulfur dioxide, removes light hydrocarbons in the form of carbon dioxide, reduces the concentration of carbon monoxide, and removes mercury vapor in the form of mercury oxide, by the addition of hydrogen peroxide or a mixture of hydrogen peroxide and methanol to a combustion flue gas at a temperature in the range from about 650 K (377. degree. C. ) to 1100 K (827. degree. C. ).
Methods For Controlling N.sub.2 O Emissions And For The Reduction Of No.sub . .Sub.x Emissions In Combustion Systems While Controlling N.sub.2 O Emissions
Loc Ho - Anaheim CA Shih L. Chen - Irvine CA William R. Seeker - San Clemente CA Peter M. Maly - El Toro CA
Assignee:
Energy & Environmental Research Corp. - Irvine CA
International Classification:
C01B 2100 C01B 1700 C01B 1720 B01J 800
US Classification:
423235
Abstract:
Method for controlling N. sub. 2 O emissions from stationary combustion systems having variable flue gas temperatures are disclosed. The N. sub. 2 O emissions are controlled by the introduction of a N. sub. 2 O control agent, such as an alkaline compound, into the effluent stream. In addition, the present invention discloses methods for controlling N. sub. 2 O emissions from stationary combustion systems having variable flue gas temperatures while reducing NO. sub. x emissions. Use of an NO. sub. x reducing agent and an N. sub. 2 O control agent, such as urea and monosodium glutamate, enlarges the temperature window for effective selective noncatalytic NO. sub. x reduction while significantly eliminating N. sub. 2 O emissions commonly experienced with urea injection. Further, the present invention discloses methods for controlling N. sub.
Methods For Enlarging The Useful Temperature Window For No.sub.x Reduction In Combustion Systems
Shih L. Chen - Irvina CA William R. Seeker - San Clemente CA Loc Ho - Anaheim CA
Assignee:
Energy and Environmental Research Corporation - Irvine CA
International Classification:
C01B 2100
US Classification:
423235
Abstract:
Methods for reducing NO. sub. x emissions from stationary combustion systems having variable flue gas temperatures are disclosed. Use of an annonium salt of an organic acid enlarges the temperature window for effective selective noncatalytic NO. sub. x reduction thereby accounting for variable flue gas temperatures. Currently preferred ammonium salts of organic acids include ammonium formate, ammonium acetate, and ammonium oxalate. Mixtures of urea and either an ammonium salt of an organic acid or a metallic salt of an organic acid provide an even greater temperature window for NO. sub. x reduction. Currently preferred metallic salts of organic acids include Ca(COOH). sub. 2, Ca(CH. sub. 3 COO). sub. 2, Ca(C. sub. 2 H. sub. 5 COO). sub. 2, Mg(COOH). sub. 2, Mg(CH. sub. 3 COO). sub. 2, and Mg(C. sub. 2 H. sub. 5 COO). sub. 2.