Reducing mercury emissions from the burning of coal
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/64
B01J-020/02
F23B-090/00
F23B-099/00
F23K-001/00
출원번호
US-0530364
(2012-06-22)
등록번호
US-8501128
(2013-08-06)
발명자
/ 주소
Comrie, Douglas C.
출원인 / 주소
NOx II, Ltd.
대리인 / 주소
Harness, Dickey & Pierce, P.L.C.
인용정보
피인용 횟수 :
5인용 특허 :
108
초록▼
Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, p
Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury;increase the level of Hg, As, Pb, and/or Cl in the coal ash;decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; andmake a highly cementitious ash product.
대표청구항▼
1. A process for burning coal in the a furnace of a coal burning system to reduce the amount of mercury released from the system in to the environment, the process comprising adding a sorbent composition comprising a bromine compound onto the coal, where the bromine compound is added at a rate of 0.
1. A process for burning coal in the a furnace of a coal burning system to reduce the amount of mercury released from the system in to the environment, the process comprising adding a sorbent composition comprising a bromine compound onto the coal, where the bromine compound is added at a rate of 0.01-1% by weight, based on the weight of the coal being burned;delivering the coal with added bromine compound into the furnace;adding cement kiln dust into the furnace with the coal, wherein the cement kiln dust is added at a rate of 0.1-10% by weight, based on the weight of the coal being burned; andcombusting the coal in the furnace to produce combustion gases, ash, and heat energy. 2. A process according to claim 1, wherein the cement kiln dust is added to the furnace where the temperature is above 2000° F. 3. A process according to claim 1, wherein the bromine compound is an inorganic bromine compound. 4. A process according to claim 3, wherein the bromine compound comprises an alkaline earth metal salt of bromine. 5. A process according to claim 3, wherein the bromine compound is not a sodium or potassium salt. 6. A process according to claim 1, wherein an aluminosilicate material is added to the furnace with the cement kiln dust. 7. A process according to claim 1, wherein the bromine compound comprises calcium bromide. 8. A process according to claim 1, comprising adding an aqueous solution of calcium bromide onto the coal. 9. A process for reducing the amount of mercury escaping from a facility upon combustion of mercury containing coal in a furnace of the facility, the process comprising: adding a first sorbent composition comprising a halogen compound onto the coal upstream of the furnace, wherein the halogen compound is added at a rate of 0.01-10% by weight, based on the weight of the coal being combusted, and the halogen is bromine or iodine;delivering the coal with the added halogen compound into the furnace;adding a second sorbent composition comprising calcium, alumina, and silica to the furnace wherein the temperature is 2000° F. or higher, wherein the second sorbent is added at a rate of 0.1-20% based on the weight of the coal being combusted; andcombusting the coal in the furnace to produce ash, combustion gases, and heat energy. 10. A process according to claim 9, wherein the second sorbent composition comprises cement kiln dust. 11. A process according to claim 9, wherein the second sorbent composition comprises an aluminosilicate material. 12. A process according to claim 9, wherein the halogen compound is a bromide. 13. A process according to claim 9, wherein the halogen compound is an iodide. 14. A process according to claim 9, wherein the halogen compound is not an alkali metal salt. 15. A process according to claim 9, wherein the halogen compound is a calcium salt. 16. A process according to claim 9, wherein the halogen compound is calcium bromide.
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이 특허에 인용된 특허 (108)
Deitz Victor R. (3310 Winnett Road Chevy Chase MD 20015) Blachly Charles H. (1903 Tuckerman St. West Hyattsville MD 20782), Activation of water soluble amines by halogens for trapping methyl radioactive iodine from air streams.
Jones ; Jr. Roger H., Cement, reduced-carbon ash and controlled mineral formation using sub- and supercritical high-velocity free-jet expansion into fuel-fired combustor fireballs.
Pinnavaia Thomas J. (East Lansing MI) Polansky Christine A. (Ithaca MI) Amarasekera Jayantha (East Lansing MI), Clay composites for the removal of SOx from flue gas streams.
Craig ; Jr. Howard L. (Mullica Hill NJ), Conversion of aluminum-mercury amalgam and incidental mercury in contact with aluminum alloy surfaces to harmless compou.
Hutchings Graham J. (Osmotherley GB2) Themistocleous Themistoclis (Bryanston ZAX) Copperthwaite Richard G. (Johannesburg ZAX), Conversion of propane and butane.
Sparks Bryan D. (Gloucester) Coleman Richard D. (Orleans) Toll Floyd N. (Russell) Meadus F. Weldon (Ottawa) Ikura Michio (Kanata CAX), Incorporation of a coprocessing additive into coal/oil agglomerates.
Durham Michael D. (Castle Rock CO) Hyatt David E. (Littleton CO) Stewart Robin M. (Arvada CO) Schlager Richard J. (Aurora CO), Mercury removal apparatus and method.
Hayes Michael E. (Fernandina Beach FL) Hrebenar Kevin R. (Jacksonville FL) Minor Jennifer L. (Jacksonville FL) Woodworth Lawrence M. (Huntington NY), Method for reducing sox emissions during the combustion of sulfur-containing combustible compositions.
Chang, Ramsay; Rostam-Abadi, Massoud; Sjostrom, Sharon, Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents.
Wen Wu-Wey (Murrysville PA) Gray McMahan L. (Pittsburgh PA) Champagne Kenneth J. (Finleyville PA), Method for simultaneous use of a single additive for coal flotation, dewatering, and reconstitution.
Felsvang Karsten S. (Columbia MD) Nielsen Kirsten K. (Holte MD DKX) Ove B. Christiansen (Ellicott City MD), Method of improving the Hg-removing capability of a flue gas cleaning process.
Cameron Charles (Paris FRX) Courty Philippe (Houilles FRX) Berrebi Georges (Bourge les Valence FRX) Roumieu Raymond (Valence FRX) Rabehasaina Hans (Loriol sur Drome FRX) Eschard Francois (Le Vesinet , Method of preparing a solid mass for mercury recovery.
Bagepalli, Srinivas Krishnasnamy; DeRose, Lynn Ann; Hung, Stephen Lan-Sun; Kim, Bang Mo; Wight, Tara Healy; Salvo, Joseph James, Methods and systems for energy and emissions monitoring.
Zamansky Vladimir M. (San Clemente CA) Ho Loc (Anaheim CA) Seeker William Randall (San Clemente CA), Methods for removing air pollutants from combustion flue gas.
Baer Stephen H. (Bedford NY) Dell\Aquila ; deceased Joseph (late of Flushing NY by Larry Dell\Aquila ; executor), Process for combustion of sulfur-containing carbonaceous materials.
Ashina Yoshiro (Zushi JPX) Fujita Takeyuki (Yokosuka JPX) Fukatsu Michio (Yokohama JPX) Yagi Junsuke (Yokohama JPX), Process for producing dimethylamine in preference to mono- and trimethylamines by gas phase catalytic reaction of ammoni.
de la Cuadra Herrera Antonio (Madrid ES) Tallante Miguel Fernandez (Madrid ES) Sanchez Armando Rodriguez (Madrid ES), Process for purifying metallurgical gases containing sulphurous anhydride by extracting mercury.
Huang Zhongcheng (Beijing CNX) Wang Peilan (Beijing CNX) Lei Xiaoxu (Beijing CNX), Process for reducing sulphur dioxide emission from burning coal containing sulphur.
Burk ; Jr. Emmett H. (Glenwood IL) Sun Jui-Yuan (South Holland IL) Troncoso Nestor J. (Thousand Oaks CA), Process for removal of sulfur and ash from coal.
Segawa Kouichi (Kanagawa JPX) Sugiyama Azusa (Kanagawa JPX) Tachibana Hiroyasu (Tokyo JPX) Kurusu Yasuhiko (Kanagawa JPX), Process for the production of modified H-mordenite, catalyst comprising said H-mordenite and process for the synthesis o.
Krigmont Henry V. (Seal Beach CA) Coe ; Jr. Everett L. (Downey CA) Southam Barry J. (Irvine CA), Reduction of acidic emissions from combustion of sulfur-laden fuels.
Ambrosini ; Ronald Frank ; Anderson ; Richard Alan ; Fornoff ; Louis L eonard ; Manchanda ; Krishan Dayal, Selective adsorption of mercury from gas streams.
Chauhan Satya P. (Worthington OH) Feldmann Herman F. (Worthington OH) Stambaugh Edgel P. (Worthington OH) Liu Ke-Tien (Allison Park PA), Solid fuel preparation method.
Rodriquez Domingo (Edo Miranda CA VEX) Payne Roy (Mission Viejo CA) Gomez Cebers (Miranda VEX) Carrazza Jose (Miranda CA VEX) Kramlich John (Irvine CA), Sulfur-sorbent promoter for use in a process for the in-situ production of a sorbent-oxide aerosol used for removing eff.
Pahlman, John E.; Carlton, Steve C.; Huff, Ray V.; Hammel, Charles F.; Boren, Richard M.; Kronbeck, Kevin P.; Larson, Joshua E.; Tuzinski, Patrick A.; Axen, Steve G., System and process for removal of pollutants from a gas stream.
Pennline, Henry W.; Granite, Evan J.; Freeman, Mark C.; Hargis, Richard A.; O'Dowd, William J., Thief process for the removal of mercury from flue gas.
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