WO2009001688A1 - Method for removal of n2o contained in exhaust gas from sewage sludge incinerator - Google Patents

Method for removal of n2o contained in exhaust gas from sewage sludge incinerator Download PDF

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Publication number
WO2009001688A1
WO2009001688A1 PCT/JP2008/060829 JP2008060829W WO2009001688A1 WO 2009001688 A1 WO2009001688 A1 WO 2009001688A1 JP 2008060829 W JP2008060829 W JP 2008060829W WO 2009001688 A1 WO2009001688 A1 WO 2009001688A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
contained
sewage sludge
sludge incinerator
removal
Prior art date
Application number
PCT/JP2008/060829
Other languages
French (fr)
Japanese (ja)
Inventor
Toichiro Sasaki
Tetsuya Yanase
Original Assignee
Metawater, Ltd.
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 Metawater, Ltd. filed Critical Metawater, Ltd.
Publication of WO2009001688A1 publication Critical patent/WO2009001688A1/en

Links

Classifications

    • 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
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
    • B01J29/46—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/7615—Zeolite Beta
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2045—Hydrochloric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/402—Dinitrogen oxide
    • 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
    • F23J2215/10—Nitrogen; Compounds thereof
    • F23J2215/101—Nitrous oxide (N2O)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Abstract

Disclosed is a method for removing N2O contained in an exhaust gas from a sewage sludge incinerator industrially efficiently while avoiding the decrease in the activity of a catalyst caused by water vapor. According to the method, an exhaust gas having a high temperature ranging from 800 to 850˚C discharged from a sewage sludge incinerator (1) is treated in an exhaust gas treatment system equipped with a smoke exhaust treatment column (6), and is cooled to 20 to 60˚C. This procedure can decrease the water vapor content in the exhaust gas to 2 to 20 vol%. The exhaust gas is heated again to 300 to 550˚C by passing the exhaust gas through a heating unit (9). The exhaust gas is contacted with an N2O-removing catalyst (8) in the presence of a reducing agent, thereby reductively removing N2O contained in the exhaust gas. The method enables to remove 90% or more of N2O.
PCT/JP2008/060829 2007-06-26 2008-06-13 Method for removal of n2o contained in exhaust gas from sewage sludge incinerator WO2009001688A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007167370A JP2010227728A (en) 2007-06-26 2007-06-26 Method for removing n2o contained in exhaust gas from sewage sludge incinerator
JP2007-167370 2007-06-26

Publications (1)

Publication Number Publication Date
WO2009001688A1 true WO2009001688A1 (en) 2008-12-31

Family

ID=40185508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/060829 WO2009001688A1 (en) 2007-06-26 2008-06-13 Method for removal of n2o contained in exhaust gas from sewage sludge incinerator

Country Status (2)

Country Link
JP (1) JP2010227728A (en)
WO (1) WO2009001688A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5756611B2 (en) 2010-10-07 2015-07-29 株式会社 資生堂 Analysis method
WO2024048386A1 (en) * 2022-08-29 2024-03-07 日本ヒューム株式会社 Method for treating high-temperature gas

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09884A (en) * 1995-06-16 1997-01-07 Babcock Hitachi Kk Method and device for removing nitrous oxide or the like in exhaust gas and catalyst
JPH09178155A (en) * 1995-12-26 1997-07-11 Ngk Insulators Ltd Processing method of exhaust combustion gas
JP2001286736A (en) * 2000-04-10 2001-10-16 Natl Inst Of Advanced Industrial Science & Technology Meti Method for treating gas containing nitrous oxide gas and treatment catalyst therefor
JP2001317725A (en) * 2000-05-10 2001-11-16 Ngk Insulators Ltd Method for reducing discharge of global warming material from incinerator
JP2005527350A (en) * 2002-04-09 2005-09-15 ウーデ・ゲーエムベーハー Method for removing nitrogen oxides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09884A (en) * 1995-06-16 1997-01-07 Babcock Hitachi Kk Method and device for removing nitrous oxide or the like in exhaust gas and catalyst
JPH09178155A (en) * 1995-12-26 1997-07-11 Ngk Insulators Ltd Processing method of exhaust combustion gas
JP2001286736A (en) * 2000-04-10 2001-10-16 Natl Inst Of Advanced Industrial Science & Technology Meti Method for treating gas containing nitrous oxide gas and treatment catalyst therefor
JP2001317725A (en) * 2000-05-10 2001-11-16 Ngk Insulators Ltd Method for reducing discharge of global warming material from incinerator
JP2005527350A (en) * 2002-04-09 2005-09-15 ウーデ・ゲーエムベーハー Method for removing nitrogen oxides

Also Published As

Publication number Publication date
JP2010227728A (en) 2010-10-14

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