WO2005079305A3 - Method for in-furnace regulation of so3 in catalytic systems - Google Patents

Method for in-furnace regulation of so3 in catalytic systems Download PDF

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Publication number
WO2005079305A3
WO2005079305A3 PCT/US2005/004416 US2005004416W WO2005079305A3 WO 2005079305 A3 WO2005079305 A3 WO 2005079305A3 US 2005004416 W US2005004416 W US 2005004416W WO 2005079305 A3 WO2005079305 A3 WO 2005079305A3
Authority
WO
WIPO (PCT)
Prior art keywords
reducing
scr
fuel
nox
stage
Prior art date
Application number
PCT/US2005/004416
Other languages
French (fr)
Other versions
WO2005079305A2 (en
Inventor
Brian S Higgins
Original Assignee
Brian S Higgins
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brian S Higgins filed Critical Brian S Higgins
Publication of WO2005079305A2 publication Critical patent/WO2005079305A2/en
Publication of WO2005079305A3 publication Critical patent/WO2005079305A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/20—Sulfur; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices

Abstract

A method of controlling SO3 flue gas concentration in a combustion process utilizing a SCR using a sulfurous fuel, the method steps including: providing a combustion system with low NOx burners and SCR; partially combusting the fuel in a first stage to create a reducing environment; maintaining the reducing environment for a sufficient time period such that SO3 is reduced to SO2 to achieve a desirable level of SO3; combusting the remainder of the fuel and combustion intermediates in a second stage with oxidizing environment; reducing the remaining NOx with the SCR; thereby reducing emissions NOx.
PCT/US2005/004416 2004-02-14 2005-02-14 Method for in-furnace regulation of so3 in catalytic systems WO2005079305A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US54472404P 2004-02-14 2004-02-14
US60/544,724 2004-02-14
US10/798,088 US7537743B2 (en) 2004-02-14 2004-03-11 Method for in-furnace regulation of SO3 in catalytic NOx reducing systems
US10/798,088 2004-03-11

Publications (2)

Publication Number Publication Date
WO2005079305A2 WO2005079305A2 (en) 2005-09-01
WO2005079305A3 true WO2005079305A3 (en) 2006-09-08

Family

ID=34841194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/004416 WO2005079305A2 (en) 2004-02-14 2005-02-14 Method for in-furnace regulation of so3 in catalytic systems

Country Status (2)

Country Link
US (1) US7537743B2 (en)
WO (1) WO2005079305A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7670569B2 (en) 2003-06-13 2010-03-02 Mobotec Usa, Inc. Combustion furnace humidification devices, systems & methods

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8251694B2 (en) * 2004-02-14 2012-08-28 Nalco Mobotec, Inc. Method for in-furnace reduction flue gas acidity
KR101373590B1 (en) * 2006-07-04 2014-03-12 미우라고교 가부시키카이샤 Boiler
WO2013016674A2 (en) * 2011-07-27 2013-01-31 Cormetech, Inc. Combustion apparatus and applications thereof
US10281140B2 (en) 2014-07-15 2019-05-07 Chevron U.S.A. Inc. Low NOx combustion method and apparatus
CN112875652B (en) * 2021-05-06 2021-08-24 中国恩菲工程技术有限公司 Containing SO2Method for preparing sulfur from flue gas

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5585081A (en) * 1988-07-25 1996-12-17 The Babcock & Wilcox Company SOx, NOx and particulate removal system
US5853684A (en) * 1995-11-14 1998-12-29 The Hong Kong University Of Science & Technology Catalytic removal of sulfur dioxide from flue gas

Family Cites Families (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2004102A (en) * 1932-02-24 1935-06-11 Daniel A Dickey Hollow steel propeller construction
US3105540A (en) * 1954-04-07 1963-10-01 Babcock & Wilcox Co Method of and apparatus for burning low heat content fuel
US3528797A (en) * 1967-11-08 1970-09-15 Grace W R & Co Chemical suppression of nitrogen oxides
US3565575A (en) * 1968-05-22 1971-02-23 Chemical Construction Corp Removal of nitrogen oxides from a gas stream
US3847564A (en) * 1970-01-23 1974-11-12 Texaco Development Corp Apparatus and process for burning liquid hydrocarbons in a synthesis gas generator
US3773897A (en) * 1970-10-19 1973-11-20 Steel Corp Process for removing nitric oxide from gaseous mixtures
US3860384A (en) * 1972-05-25 1975-01-14 Intelcon Rad Tech Method to control NOX formation in fossil-fueled boiler furnaces
US4039446A (en) * 1972-06-28 1977-08-02 Sumitomo Chemical Company, Limited Heavy metal-binding agent process
GB1465785A (en) * 1973-03-12 1977-03-02 Tokyo Gas Co Ltd Burner and method of combustion-
US3900554A (en) * 1973-03-16 1975-08-19 Exxon Research Engineering Co Method for the reduction of the concentration of no in combustion effluents using ammonia
US4029752A (en) * 1973-05-29 1977-06-14 Exxon Research And Engineering Company Method of producing sulfur from sulfur dioxide
JPS50133995A (en) * 1974-04-11 1975-10-23
US4080423A (en) * 1974-04-17 1978-03-21 Massachusetts Institute Of Technology Gas absorption
US4089639A (en) * 1974-11-26 1978-05-16 John Zink Company Fuel-water vapor premix for low NOx burning
US4208386A (en) * 1976-03-03 1980-06-17 Electric Power Research Institute, Inc. Urea reduction of NOx in combustion effluents
JPS5314662A (en) * 1976-07-28 1978-02-09 Hitachi Ltd Method for decreasing nitrogen oxides concentration of combustion exhaust gas
JPS5372773A (en) * 1976-12-10 1978-06-28 Hitachi Ltd Direct reductive denitration method of ammonia
US4173454A (en) * 1977-07-18 1979-11-06 Heins Sidney M Method for removal of sulfur from coal in stoker furnaces
CA1092897A (en) 1977-09-16 1981-01-06 Arun K. Mehta Fuel firing method
US4325924A (en) * 1977-10-25 1982-04-20 Electric Power Research Institute, Inc. Urea reduction of NOx in fuel rich combustion effluents
US4150631A (en) * 1977-12-27 1979-04-24 Combustion Engineering, Inc. Coal fired furance
US4154581A (en) * 1978-01-12 1979-05-15 Battelle Development Corporation Two-zone fluid bed combustion or gasification process
US4196057A (en) * 1978-08-31 1980-04-01 Petrolite Corporation Cold end corrosion rate probe
US4375949A (en) * 1978-10-03 1983-03-08 Exxon Research And Engineering Co. Method of at least partially burning a hydrocarbon and/or carbonaceous fuel
US4294178A (en) * 1979-07-12 1981-10-13 Combustion Engineering, Inc. Tangential firing system
JPS5742521Y2 (en) * 1979-07-19 1982-09-18
US4704084A (en) * 1979-12-26 1987-11-03 Battelle Development Corporation NOX reduction in multisolid fluidized bed combustors
US4381718A (en) * 1980-11-17 1983-05-03 Carver George P Low emissions process and burner
US4469050A (en) * 1981-12-17 1984-09-04 York-Shipley, Inc. Fast fluidized bed reactor and method of operating the reactor
US4504211A (en) * 1982-08-02 1985-03-12 Phillips Petroleum Company Combination of fuels
US4502633A (en) * 1982-11-05 1985-03-05 Eastman Kodak Company Variable capacity gasification burner
EP0111874B1 (en) * 1982-12-15 1987-04-22 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk A device for burning coal dust
US4506608A (en) * 1983-01-07 1985-03-26 Electrodyne Research Corp. Unfired drying and sorting apparatus for preparation of solid fuel and other solid material
US4672900A (en) * 1983-03-10 1987-06-16 Combustion Engineering, Inc. System for injecting overfire air into a tangentially-fired furnace
US4565137A (en) * 1983-08-08 1986-01-21 Aqua-Chem, Inc. Bio-mass suspension burner
DE3329633A1 (en) * 1983-08-17 1985-03-07 Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen METHOD AND WASHING TOWER FOR DESULFURING INDUSTRIAL SMOKE GASES
US4507269A (en) * 1983-11-10 1985-03-26 Exxon Research & Engineering Co. Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures greater than about 1300 degree K
US4624840A (en) * 1983-11-10 1986-11-25 Exxon Research & Engineering Company Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures greater than about 1300° K.
GB8334332D0 (en) * 1983-12-23 1984-02-01 Coal Industry Patents Ltd Combustors
US4927612A (en) * 1985-10-04 1990-05-22 Fuel Tech, Inc. Reduction of nitrogen- and carbon-based pollutants
US4751065A (en) * 1985-12-20 1988-06-14 Fuel Tech, Inc. Reduction of nitrogen- and carbon-based pollutants
JPS63502086A (en) * 1985-10-04 1988-08-18 フユ−エル　テク，インコ−ポレイテツド Reduction of nitrogen- and carbon-based pollutants using urea solutions
US4809910A (en) * 1986-06-06 1989-03-07 Nelson Irrigation Corporation Apparatus for providing a semiautomatic irrigation system
US4842834A (en) * 1987-02-02 1989-06-27 Fuel Tech, Inc. Process for reducing the concentration of pollutants in an effluent
US4777024A (en) * 1987-03-06 1988-10-11 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US5057293A (en) * 1987-02-13 1991-10-15 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US4780289A (en) * 1987-05-14 1988-10-25 Fuel Tech, Inc. Process for nitrogen oxides reduction and minimization of the production of other pollutants
US5017347A (en) * 1987-02-13 1991-05-21 Fuel Tech, Inc. Process for nitrogen oxides reduction and minimization of the production of other pollutants
US4851201A (en) 1987-04-16 1989-07-25 Energy And Environmental Research Corporation Methods of removing NOx and SOx emissions from combustion systems using nitrogenous compounds
US4873930A (en) * 1987-07-30 1989-10-17 Trw Inc. Sulfur removal by sorbent injection in secondary combustion zones
US4824441A (en) * 1987-11-30 1989-04-25 Genesis Research Corporation Method and composition for decreasing emissions of sulfur oxides and nitrogen oxides
JP2637449B2 (en) * 1988-01-12 1997-08-06 三菱重工業株式会社 Fluidized bed combustion method
US4915036A (en) * 1988-02-26 1990-04-10 Fuel Tech, Inc. Boiler and injector for reducing the concentration of pollutants in an effluent
US4985218A (en) * 1989-03-03 1991-01-15 Fuel Tech, Inc. Process and injector for reducing the concentration of pollutants in an effluent
US5032154A (en) * 1989-04-14 1991-07-16 Wilhelm Environmental Technologies, Inc. Flue gas conditioning system
WO1991000134A1 (en) * 1989-07-04 1991-01-10 Fuel Tech Europe Limited Lance-type injection apparatus for introducing chemical agents into flue gases
US4978514A (en) * 1989-09-12 1990-12-18 Fuel Tech, Inc. Combined catalytic/non-catalytic process for nitrogen oxides reduction
US5139754A (en) * 1989-09-12 1992-08-18 Fuel Tech, Inc. Catalytic/non-catalytic combination process for nitrogen oxides reduction
JPH0356011U (en) * 1989-10-03 1991-05-29
US5020456A (en) * 1990-02-28 1991-06-04 Institute Of Gas Technology Process and apparatus for emissions reduction from waste incineration
US5052921A (en) * 1990-09-21 1991-10-01 Southern California Gas Company Method and apparatus for reducing NOx emissions in industrial thermal processes
US5048432B1 (en) * 1990-12-27 1996-07-02 Nalco Fuel Tech Process and apparatus for the thermal decomposition of nitrous oxide
US5261602A (en) * 1991-12-23 1993-11-16 Texaco Inc. Partial oxidation process and burner with porous tip
US5240404A (en) * 1992-02-03 1993-08-31 Southern California Gas Company Ultra low NOx industrial burner
US5809910A (en) * 1992-05-18 1998-09-22 Svendssen; Allan Reduction and admixture method in incineration unit for reduction of contaminants
US5310334A (en) * 1992-06-03 1994-05-10 Air Duke Australia, Ltd. Method and apparatus for thermal destruction of waste
US5536482A (en) * 1992-10-13 1996-07-16 Nalco Fuel Tech Process for pollution control
US5489419A (en) * 1992-10-13 1996-02-06 Nalco Fuel Tech Process for pollution control
US5336081A (en) * 1992-11-24 1994-08-09 Bluenox Japan Kabushiki Kaisha Device and method for removing nitrogen oxides
US5345883A (en) * 1992-12-31 1994-09-13 Combustion Engineering, Inc. Reactivation of sorbent in a fluid bed boiler
US5326536A (en) * 1993-04-30 1994-07-05 The Babcock & Wilcox Company Apparatus for injecting NOx inhibiting liquid reagent into the flue gas of a boiler in response to a sensed temperature
US5759394A (en) * 1996-11-27 1998-06-02 Alliedsignal Inc. Elongate fiber filter mechanically securing solid adsorbent particles between adjacent multilobes
US5707596A (en) * 1995-11-08 1998-01-13 Process Combustion Corporation Method to minimize chemically bound nox in a combustion process
US5728357A (en) * 1996-04-10 1998-03-17 Nalco Fuel Tech Reduction of NOx emissions from rotary cement kilns by selective noncatalytic reduction
US5854173A (en) 1996-05-31 1998-12-29 Electric Power Research Institute, Inc. Flake shaped sorbent particle for removing vapor phase contaminants from a gas stream and method for manufacturing same
US5690039A (en) * 1996-06-17 1997-11-25 Rjm Corporation Method and apparatus for reducing nitrogen oxides using spatially selective cooling
JPH1038261A (en) * 1996-07-18 1998-02-13 Toyota Motor Corp Combustion device
US5820838A (en) * 1996-09-27 1998-10-13 Foster Wheeler Energia Oy Method and an apparatus for injection of NOx reducing agent
FI102411B1 (en) * 1997-02-07 1998-11-30 Kvaerner Pulping Oy Method and apparatus for feeding air into a floating bed reactor
FI973932A (en) * 1997-10-10 1999-04-11 Kvaerner Pulping Oy Method and Arrangement for Optimizing Oxidation in Combustion of Gaseous and Liquid Fuels
US6213032B1 (en) * 1999-08-30 2001-04-10 Energy Systems Associates Use of oil water emulsion as a reburn fuel
JP2001143223A (en) * 1999-11-11 2001-05-25 Alps Electric Co Ltd Spin valve thin film magnetic element and thin film magnetic head
US6485289B1 (en) * 2000-01-12 2002-11-26 Altex Technologies Corporation Ultra reduced NOx burner system and process
US6315551B1 (en) * 2000-05-08 2001-11-13 Entreprise Generale De Chauffage Industriel Pillard Burners having at least three air feed ducts, including an axial air duct and a rotary air duct concentric with at least one fuel feed, and a central stabilizer
US6451723B1 (en) 2000-07-07 2002-09-17 Honeywell International Inc. Polymer-bound nitrogen adsorbent and method of making and using it
US6280695B1 (en) * 2000-07-10 2001-08-28 Ge Energy & Environmental Research Corp. Method of reducing NOx in a combustion flue gas
US6357367B1 (en) * 2000-07-18 2002-03-19 Energy Systems Associates Method for NOx reduction by upper furnace injection of biofuel water slurry
US6527828B2 (en) * 2001-03-19 2003-03-04 Advanced Technology Materials, Inc. Oxygen enhanced CDA modification to a CDO integrated scrubber
US6905534B2 (en) * 2001-04-16 2005-06-14 Electric Power Research Institute, Inc. Method and apparatus for removing vapor phase contaminants from a flue gas stream
US6532905B2 (en) * 2001-07-17 2003-03-18 The Babcock & Wilcox Company CFB with controllable in-bed heat exchanger
US6953494B2 (en) * 2002-05-06 2005-10-11 Nelson Jr Sidney G Sorbents and methods for the removal of mercury from combustion gases
US7029516B2 (en) * 2002-10-24 2006-04-18 Georgia Tech Research Corporation Filters and methods of making and using the same
US6979430B2 (en) 2002-12-18 2005-12-27 Foster Wheeler Energy Corporation System and method for controlling NOx emissions from boilers combusting carbonaceous fuels without using external reagent
US6818043B1 (en) * 2003-01-23 2004-11-16 Electric Power Research Institute, Inc. Vapor-phase contaminant removal by injection of fine sorbent slurries
US7335014B2 (en) * 2003-06-12 2008-02-26 Mobotec Usa, Inc. Combustion NOx reduction method
US20040185401A1 (en) * 2003-03-19 2004-09-23 Goran Moberg Mixing process for combustion furnaces
US20040185402A1 (en) * 2003-03-19 2004-09-23 Goran Moberg Mixing process for increasing chemical reaction efficiency and reduction of byproducts
US20040185399A1 (en) * 2003-03-19 2004-09-23 Goran Moberg Urea-based mixing process for increasing combustion efficiency and reduction of nitrogen oxides (NOx)
US8353698B2 (en) * 2003-06-13 2013-01-15 Nalco Mobotec, Inc. Co-axial injection system
US7670569B2 (en) * 2003-06-13 2010-03-02 Mobotec Usa, Inc. Combustion furnace humidification devices, systems & methods
US7198769B2 (en) * 2003-12-02 2007-04-03 Cichanowicz J Edward Multi-stage process for SCR of NOx

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5585081A (en) * 1988-07-25 1996-12-17 The Babcock & Wilcox Company SOx, NOx and particulate removal system
US5853684A (en) * 1995-11-14 1998-12-29 The Hong Kong University Of Science & Technology Catalytic removal of sulfur dioxide from flue gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7670569B2 (en) 2003-06-13 2010-03-02 Mobotec Usa, Inc. Combustion furnace humidification devices, systems & methods
US8021635B2 (en) 2003-06-13 2011-09-20 Nalco Mobotec, Inc. Combustion furnace humidification devices, systems and methods

Also Published As

Publication number Publication date
US7537743B2 (en) 2009-05-26
WO2005079305A2 (en) 2005-09-01
US20050180904A1 (en) 2005-08-18

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