KR960016947A - 질소산화물, 황산화물 및 입자성물질 방출 조절을 위한 암모니아 시약 적용 - Google Patents

질소산화물, 황산화물 및 입자성물질 방출 조절을 위한 암모니아 시약 적용 Download PDF

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KR960016947A
KR960016947A KR1019950039561A KR19950039561A KR960016947A KR 960016947 A KR960016947 A KR 960016947A KR 1019950039561 A KR1019950039561 A KR 1019950039561A KR 19950039561 A KR19950039561 A KR 19950039561A KR 960016947 A KR960016947 A KR 960016947A
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flue gas
ammonia
treatment system
gas treatment
unit
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KR1019950039561A
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에이. 배트 퍼베이지
피. 톤 도날드
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로버트 제이. 에드워즈
더 뱁콕 앤드 윌콕스 컴퍼니
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Publication of KR960016947A publication Critical patent/KR960016947A/ko

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    • 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
    • B01D53/60—Simultaneously removing sulfur oxides and 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
    • B01D53/346—Controlling the process
    • 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
    • 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
    • B01D53/75—Multi-step processes
    • 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
    • B01D53/74—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
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)
  • Electrostatic Separation (AREA)

Abstract

석탄 연소되는 보일러를 위한 연도 가스 방출 시스템은, NOx, SOx 및 입자성물질을 제거하기 위하여 각각의 유니트를 사용하고, 단일 소스로부터 모든 3유니트로 암모니아 주입을 제공한다.

Description

질소산화물, 황산화물 및 입자성물질 방출 조절을 위한 암모니아 시약 적용
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 방출 조절 시스템의 개략도이다.

Claims (15)

  1. 보일러의 연도 배기 가스로부터 NOx를 제거하기 위하여 연결되는 암모니아 주입의 선택적인 촉매 환원(SCR) 유니트, 보일러의 연도 배기 가스로부터 입자의 제거를 향상시키도록 거기에 주입되는 암모니아의 예정된 양을 갖는 정전기 집진기, 및 보일러로부터 발생된 SOx를 제거하기 위하여 거기에 주입되고 연결되는 암모니아 시약을 갖는 연도 가스 탈황(FGD) 유니트로 이루어진 보일러를 위한 연도 가스 처리 시스템.
  2. 제1항에 있어서, 단일 소스로부터의 암모니아는 상기 SCR, 상기 FGD 및 상기 정전기 집진기에 연결되는 연도 가스 처리 시스템.
  3. 제1항에 있어서, 연도 가스 중 2 내지 10ppm을 유지하기에 충분한 상기 집진기내로 주입된 암모니아를 유지하기 위한 조절기 수단이 추가로 이루어지는 연도 가스 처리 시스템.
  4. 제1항에 있어서, 상기 FGD 유니트에 대한 연도가스의 입구에서 연도가스의 농도를 약 130°F로 식히도록 암모니아 주입 식힘 라인이 추가로 이루어지는 연도 가스 처리 시스템.
  5. 제4항에 있어서, FGD 유니트는 상기 식힘 라인의 하류에 흡수 트레이탑 및 연무 제거기를 포함하는 연도 가스 처리 시스템.
  6. 제5항에 있어서, 상기 흡수 트레이 탑내로 암모니아를 주입하기 위한 이차 암모니아 주입 라인이 추가로 이루어진 연도 가스 처리 시스템.
  7. 제6항에 있어서, 셀페이트로 암모니아 바이설파이트-설파이트를 산화하기 위한 상기 FGD유니의 바닥에서 스파르저 공기 라인이 추가로 이루어진 연도 가스 처리 시스템.
  8. 제4항에 있어서, 상기 SCR은 공기 히터의 하류에 보일러의 연도에 연결되는 연도 가스 처리 시스템.
  9. 제8항에 있어서, 상기 정전기 집진기는 상기 공기 히터의 배기에 연결되는 연도 가스 처리 시스템.
  10. 제9항에 있어서, 상기 FGD 유니트는 상기 집진기의 배기에 연결되는 연도 가스 처리 시스템.
  11. 제2항에 있어서, 상기 보일러는 화석 연료가 연소되는 보일러인 연도 가스 처리 시스템.
  12. NOx 제거 유니트 내로 암모니아 및 희석 공기 혼합물을 주입하는 단계, 정전기 집진기 내로 암모니아의 예정된 양을 동시에 주입하는 단계, 및 FGD 유니트 내로 암모니아 액체 시약 혼합물을 동시에 주입하는 단계로 이루어지는 NOx, SOx 및 입자성물질 제거 유니트를 갖는 보일러의 배기 연도 가스 처리 방법.
  13. 제12항에 있어서, 상기 암모니아 혼합물을 식힘 위치 및 트레이 위의 두 분별 위치에서 FGD 유니트로 주입되는 배기 연도 가스 처리 방법.
  14. 제12항에 있어서, 충분한 암모니아는 연도 가스에 대해 암모니아의 2ppm 내지 10ppm의 비율을 유지하기 위하여 정전기 집진기 내로 주입되는 배기 연도 가스의 처리 방법.
  15. 제12항에 있어서, 충분한 암모니아 액체 혼합물을 약 130°F로 그속에 온도를 식히고, 연도가스로부터 SO2를 감소하기 위하여 FGD 유니트로 주입되는 보일러의 배기 연도 가스의처리 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950039561A 1994-11-04 1995-11-03 질소산화물, 황산화물 및 입자성물질 방출 조절을 위한 암모니아 시약 적용 KR960016947A (ko)

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US08/334,502 US5525317A (en) 1994-11-04 1994-11-04 Ammonia reagent application for NOX SOX and particulate emission control
US08/334,502 1994-11-04

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KR960016947A true KR960016947A (ko) 1996-06-17

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US (1) US5525317A (ko)
KR (1) KR960016947A (ko)
CN (1) CN1132107A (ko)
CA (1) CA2161503A1 (ko)
CZ (1) CZ282095A3 (ko)
PL (1) PL311240A1 (ko)
SK (1) SK137495A3 (ko)
TW (1) TW307359U (ko)

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US5525317A (en) 1996-06-11
CN1132107A (zh) 1996-10-02
CZ282095A3 (en) 1996-05-15
CA2161503A1 (en) 1996-05-05
PL311240A1 (en) 1996-05-13
SK137495A3 (en) 1996-05-08
TW307359U (en) 1997-06-01

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