Control of wet scrubber oxidation inhibitor and byproduct recovery
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/64
B01D-053/50
B01D-053/40
B01D-053/68
B01D-053/75
B01D-053/78
B01D-053/79
B01D-015/08
B01D-053/34
B01D-053/86
B01D-053/96
출원번호
US-0217749
(2016-07-22)
등록번호
US-9889405
(2018-02-13)
발명자
/ 주소
Sjostrom, Sharon
Baldrey, Kenneth E.
Senior, Constance
출원인 / 주소
ADA-ES, INC.
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
0인용 특허 :
245
초록▼
The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion p
The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction.
대표청구항▼
1. A system, comprising: an input to receive a waste gas comprising an acid gas and iodine;a wet scrubber to treat the waste gas to remove at least a portion of the acid gas and the iodine from the waste gas and form a scrubbing solution comprising at least one of an acid derived from the acid gas a
1. A system, comprising: an input to receive a waste gas comprising an acid gas and iodine;a wet scrubber to treat the waste gas to remove at least a portion of the acid gas and the iodine from the waste gas and form a scrubbing solution comprising at least one of an acid derived from the acid gas and a derivative thereof and iodine; anda carbonaceous material to remove, from the scrubbing solution, at least a portion of the iodine, thereby reducing a concentration of iodine in the scrubbing solution. 2. The system of claim 1, wherein the iodine is at least one of elemental and compounded iodine, wherein the waste gas comprises elemental mercury and further comprising: an iodine-containing additive in contact with the waste gas upstream of the wet scrubber to oxidize elemental mercury in the waste gas to a non-elemental mercury, wherein the at least a portion of the at least one of elemental and compounded iodine is removed from the scrubbing solution by the carbonaceous material, wherein the at least a portion of the at least one of elemental and compounded iodine is sorbed on the carbonaceous material, wherein the carbonaceous material comprising the sorbed iodine-containing composition is removed from the scrubbing solution, and wherein the recovered carbonaceous material forms at least a part of the iodine-containing additive. 3. The system of claim 1, wherein the iodine is at least one of elemental and compounded iodine, wherein the at least a portion of the at least one of elemental and compounded iodine is removed from the scrubbing solution by the carbonaceous material, wherein the waste gas comprises elemental mercury, wherein an iodine-containing additive is contacted with a mercury-containing feed material, wherein the waste gas is derived from the mercury-containing feed material, wherein the carbonaceous material collects iodine from the scrubbing solution, wherein the iodine-containing carbonaceous material is recovered from the scrubbing solution, and wherein the recovered carbonaceous material to the waste gas as the iodine-containing additive. 4. The system of claim 1, wherein the iodine is at least one of elemental and compounded iodine and further comprising one or more of ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction unit to remove the at least a portion of the at least one of elemental and compounded iodine from the scrubbing solution. 5. The system of claim 4, wherein, after removal of the at least a portion of the at least one of elemental and compounded iodine from the scrubbing solution, the treated scrubbing solution is returned to the wet scrubber, wherein the wet scrubber is a flue-gas desulfurization scrubber, and wherein a flow of the scrubbing solution through the carbonaceous material is controlled at a rate to maintain overall iodine concentration in the scrubber solution at less than about 100 ppm. 6. The system of claim 4, wherein, after removal of the at least a portion of the at least one of elemental and compounded iodine from the scrubbing solution, the scrubbing solution is returned to the wet scrubber, wherein the wet scrubber is a flue-gas desulfurization scrubber, and wherein a flow of an input scrubbing solution through a first bed of the carbonaceous material is stopped when a concentration of the at least one of iodine and iodine-containing composition in an output scrubbing solution is at least a predetermined threshold and/or a difference between concentrations of the at least one of iodine and iodine-containing composition in the input and output scrubbing solutions is at least a predetermined threshold. 7. The system of claim 6, wherein the flow through the first bed is stopped automatically by a microprocessor and a flow of the scrubbing solution through a second bed of the carbonaceous material is initiated automatically by the microprocessor in response to an absolute value of the concentration of the at least one of iodine and iodine-containing composition in the output scrubbing solution reaching the at least a predetermined threshold. 8. The system of claim 1, wherein the iodine is at least one of elemental and compounded iodine, wherein the removing step comprises contacting at least a portion of the scrubbing solution with a carbonaceous material to collect onto the carbonaceous material the at least one of elemental and compounded iodine, wherein, after contacting, the scrubbing solution is in the form of a slurry, wherein the carbonaceous material is separated from the scrubbing solution, and wherein at least one of the following is true: (i) the carbonaceous material is introduced into the waste gas at an inlet to the wet scrubber and (ii) the carbonaceous material is introduced into a reservoir of the scrubbing solution in the wet scrubber. 9. The system of claim 1, wherein the iodine is at least one of elemental and compounded iodine, wherein the carbonaceous material contacts at least a portion of the scrubbing solution and collects, onto the carbonaceous material, the at least one of elemental and compounded iodine and wherein the scrubbing solution is contacted with an oxidizing agent and/or pH-adjusted to convert elemental mercury in the scrubbing solution and/or on the carbonaceous material to a more water soluble form of mercury and convert iodide to elemental iodine for collection by the carbonaceous material. 10. The system of claim 1, wherein the waste gas comprises elemental mercury, and wherein, upstream of the wet scrubber, the elemental mercury is oxidized to speciated mercury by one or more of the following operations: (i) contact of the waste gas with at least one of a halogen and a halogen-containing composition;(ii) contact of the waste gas with a selective catalytic reduction catalyst; and(iii) contact of the waste gas with a carbonaceous material in a baghouse. 11. The system of claim 10, wherein operation (iii) is performed and wherein the carbonaceous material is introduced into the waste gas at or near an inlet of the baghouse.
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.
Shibuya, Tadashi; Naito, Junko; Yamada, Hidenori; Sekine, Nobuki, Catalyst for fluidized catalytic cracking of heavy hydrocarbon oil and method of fluidized catalytic cracking.
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.
Kraw Allan (10238 Gelfand Pl. Albuquerque NM 87114) Kraw Carol A. (10238 Gelfand Pl. Albuquerque NM 87114), Filter and method for removing mercury, bacteria, pathogens and other vapors from gas.
Brown ; Jr. Jesse J. (414 Miller St. Christiansburg VA 24073) Brown Nancy R. (414 Miller St. Christiansburg VA 24073), Heavy metal/particulate trap for hot gas clean-up.
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.
Matviya Thomas M. (Pittsburgh PA) Gebhard Robert S. (Pittsburgh PA) Greenbank Michael (Monaca PA), Mercury adsorbent carbon molecular sieves and process for removing mercury vapor from gas streams.
Lissianski,Vitali Victor; Zamansky,Vladimir M.; Maly,Peter Martin; Seeker,William Randall, Mercury reduction system and method in combustion flue gas using coal blending.
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.
Durham Michael D. (Castle Rock CO) Schlager Richard J. (Aurora CO) Sappey Andrew D. (Golden CO) Sagan Francis J. (Lakewood CO) Marmaro Roger W. (Littleton CO) Wilson Kevin G. (Littleton CO), Method and apparatus for monitoring mercury emissions.
Lissianski, Vitali Victor; Maly, Peter Martin; Seeker, William Randall; Taylor, Robert Warren, Method and apparatus for removing mercury from combustion exhaust gas.
Durham, Michael D.; Sjostrom, Sharon; Baldrey, Kenneth E.; French, Nina Bergan; Bisque, Ramon, Method and system for controlling mercury emissions from coal-fired thermal processes.
Durham, Michael; French, Nina Bergan; Bisque, Ramon E.; Baldrey, Kenneth E., Method and system for controlling mercury emissions from coal-fired thermal processes.
Liu, Ke; Deluga, Gregg Anthony; Zamansky, Vladmir M.; Lissianski, Vitali Victor; Kulkarni, Parag Prakash, Method and systems for removing mercury from combustion exhaust gas.
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.
Lissianski, Vitali Victor; Maly, Peter Martin; Seeker, William Randall; Zamansky, Vladimir M., Method for removal of mercury emissions from coal combustion.
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.
Greinke Ronald A. (Medina OH) Bretz Richard I. (Parma OH) Mullhaupt Joseph T. (Williamsville NY), Method for storing methane using a halogenating agent treated activated carbon.
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.
Lanier, William Steven; Booth, Charles M.; Lissianski, Vitali V.; Zamansky, Vladimir M.; Maly, Peter M.; Seeker, William Randall, Method to decrease emissions of nitrogen oxide and mercury.
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.
Knoblauch Karl (Essen DEX) Richter Ekkehard (Essen DEX) Schmidt Hans-Jrgen (Essen DEX), Process for manufacturing a carbonaceous catalyst for the reduction of nitrogen oxides in exhaust gases.
Mlls Hans-Heinz (Leverkusen DEX) Kaspar Vaclav (Cologne DEX) Vosteen Bernhard (Cologne DEX) Dehmel Georg (Cologne DEX) Hrnle Reinhold (Cologne DEX) Wolf Karlheinz (Leverkusen DEX), Process for preparing granules of water-insoluble solids.
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.
Nick,Peter A.; Hunnicutt,Hugh; Peters,Robert Roy; Anderson,Eric A.; Dolbear,Geoffrey E., Process for pyrolytic heat recovery enhanced with gasification of organic material.
Huang Zhongcheng (Beijing CNX) Wang Peilan (Beijing CNX) Lei Xiaoxu (Beijing CNX), Process for reducing sulphur dioxide emission from burning coal containing sulphur.
Kaczur Jerry J. (Cleveland TN) Iacoviello Steven A. (Naugatuck CT) Duncan Budd L. (Athens TN), Process for removal of NOx and SOx oxides from waste gases with chloric acid.
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.
Moller Jens T. (Allerod DKX) Jacobsen Niels (Copenhagen DKX) Nielsen Kirsten K. (Holte DKX) Rasmussen Stig (Gadstrup DKX), Process for removal or mercury vapor and/or vapor of noxious organic compounds and/or nitrogen oxides from flue gas from.
Schnegg Peter (Odenthal DEX) Rapp Walter (Leverkusen DEX) Vosteen Bernhard (Cologne DEX), Process for the preparation of alkali metal salts of hydroxybenzoates, which are substantially anhydrous and free from h.
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.
Girrbach Ulrich (Frankfurt am Main DEX) Hrtl Edgar (Langen DEX) Malow Egon (Hochheim DEX), Process for the selective absorption of chlorine and/or bromine from CO2-containing off-gases with the aid.
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.
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.
Yoshida Hisayoshi (Tosu JA) Nakamura Takato (Tosu JA) Nakagawa Masanao (Tosu JA) Arita Seiji (Tosu JA) Miki Toshiharu (Tosu JA), Thiohumic acid, a process for preparing same, and its use for absorbing heavy metal ions.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.