KR100602766B1 - 석탄에 기초한 재연소를 이용하는 NOx 감소 방법 - Google Patents
석탄에 기초한 재연소를 이용하는 NOx 감소 방법 Download PDFInfo
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- KR100602766B1 KR100602766B1 KR1020010026945A KR20010026945A KR100602766B1 KR 100602766 B1 KR100602766 B1 KR 100602766B1 KR 1020010026945 A KR1020010026945 A KR 1020010026945A KR 20010026945 A KR20010026945 A KR 20010026945A KR 100602766 B1 KR100602766 B1 KR 100602766B1
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- combustion gas
- fuel
- oxygen
- hot oxygen
- particulate carbonaceous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
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- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
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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
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
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- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/20—Arrangements for treatment or cleaning of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
-
- 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
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
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- 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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/99004—Combustion process using petroleum coke or any other fuel with a very low content in volatile matters
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/32—Technologies related to metal processing using renewable energy sources
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
Description
(C) 상기 고온 산소와, 휘발성 물질을 포함한 입자상 탄소질 연료를 가속화시키는 단계;
(1) 표준(Base), 블라스트 공기 스트림에 산소가 공급되지 않음,
(2) 농축(Enrich), 산소가 대기온도에서 블라스트 공기 가열기의 상류에서 공급됨,
(3) 냉각 분사(Cold Inj.), 산소가 대기온도에서 블라스트 공기 내에 공급됨,
(4) 가열 분사(Hot Inj.), 고온 산소가 사용됨.
각각의 경우에 있어, 연료는 통상적으로 상업용 블라스트 노의 작동에 사용되는 휘발성이 높은 미분탄이며, 표 1에 그에 대한 분석이 도시되어 있다. 연료는 9.5 kg/hr의 유량으로 블라스트 공기 스트림 내로 공급되었다.
Claims (9)
- 연소반응에 의한 연소가스 중의 NOx 함량 감소 방법으로서,(A) 열을 발생시키고 NOx를 함유하는 연소가스를 생성하도록 연료 및 산화제를 연소시키는 단계;(B) 고온 산소를 형성하도록 30몰 퍼센트 이상의 산소 농도를 갖는 가스상 유체인 산소를 538℃ 내지 1649℃(1000℉ 내지 3000℉) 범위의 온도로 가열하는 단계;(C) 상기 고온 산소와, 휘발성 물질을 포함한 입자상 탄소질 연료를 가속화시키는 단계;(D) 1.0 미만의 화학양론비를 가진 혼합물이 생성되도록, 상기 휘발성 물질을 포함한 입자상 탄소질 연료를 상기 고온 산소와 혼합시키고, 상기 혼합물 내의 상기 입자상 탄소질 연료를 탈휘발시키며, 탄화수소 라디칼을 함유하는 연료-부화 가스상 혼합물이 생성되도록 상기 혼합물 내의 입자상 탄소질 연료와 휘발성 물질을 고온 산소와 반응시키는 단계; 그리고(E) 상기 연료-부화 가스상 혼합물을 상기 연소가스와 접촉시키고, 질소가스가 생성되도록 상기 연료-부화 가스상 혼합물의 탄화수소 라디칼을 상기 연소가스의 NOx와 반응시키는 단계를 포함하는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 고온 산소가 2000℉ 내지 3000℉ 범위의 온도를 가지는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 입자상 탄소질 연료가 석탄을 포함하는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 혼합물이 0.1 내지 0.6 범위의 화학양론비를 가지는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 고온 산소가 70몰 퍼센트 이상의 산소 농도를 가지는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 고온 산소 및 상기 입자상 탄소질 연료가 가스화 장치 내로 들어 가고, 상기 연료-부화 가스상 혼합물은 상기 가스화 장치로부터 노 영역 내로 들어가서 상기 연소가스와 접촉하는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 고온 산소 및 상기 입자상 탄소질 연료가, NOx를 함유하는 연소가스도 포함하는 노 영역 내로 들어가는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 고온 산소와 상기 입자상 탄소질 연료가 1.0 미만의 화학양론비를 가진 혼합물을 형성하기 전에 가속되는,연소가스 중의 NOx 함량 감소 방법.
- 제 1 항에 있어서,상기 고온 산소와 상기 입자상 탄소질 연료는 별도의 장치를 통해 상기 노 영역 내로 직접 공급되고, 일부 연소 가스는 상기 고온 산소와 상기 입자상 탄소질 연료의 혼합 전에 상기 고온 산소 내에 유입되는,연소가스 중의 NOx 함량 감소 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/573,177 US6206949B1 (en) | 1997-10-29 | 2000-05-19 | NOx reduction using coal based reburning |
US09/573,177 | 2000-05-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010105244A KR20010105244A (ko) | 2001-11-28 |
KR100602766B1 true KR100602766B1 (ko) | 2006-07-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020010026945A KR100602766B1 (ko) | 2000-05-19 | 2001-05-17 | 석탄에 기초한 재연소를 이용하는 NOx 감소 방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6206949B1 (ko) |
EP (1) | EP1155731A1 (ko) |
KR (1) | KR100602766B1 (ko) |
CN (1) | CN1180197C (ko) |
BR (1) | BR0102032A (ko) |
CA (1) | CA2348061A1 (ko) |
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US6699029B2 (en) | 2001-01-11 | 2004-03-02 | Praxair Technology, Inc. | Oxygen enhanced switching to combustion of lower rank fuels |
US20020127505A1 (en) | 2001-01-11 | 2002-09-12 | Hisashi Kobayashi | Oxygen enhanced low nox combustion |
US6702569B2 (en) | 2001-01-11 | 2004-03-09 | Praxair Technology, Inc. | Enhancing SNCR-aided combustion with oxygen addition |
US6699031B2 (en) | 2001-01-11 | 2004-03-02 | Praxair Technology, Inc. | NOx reduction in combustion with concentrated coal streams and oxygen injection |
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AU2003269127A1 (en) | 2002-05-15 | 2003-12-02 | Praxair Technology, Inc. | Combustion with reduced carbon in the ash |
EP1537362B1 (en) * | 2002-05-15 | 2016-03-16 | Praxair Technology, Inc. | Low nox combustion |
JP3735594B2 (ja) * | 2002-06-28 | 2006-01-18 | 株式会社東芝 | 光ディスク装置と光ディスク装置の待機方法 |
US7199088B2 (en) | 2002-07-01 | 2007-04-03 | Shell Oil Company | Lubricating oil for a diesel powered engine and method of operating a diesel powered engine |
WO2004065849A1 (en) | 2003-01-21 | 2004-08-05 | L'air Liquide - Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and apparatus for oxigen enrichment in fuel conveying gases |
US7028622B2 (en) * | 2003-04-04 | 2006-04-18 | Maxon Corporation | Apparatus for burning pulverized solid fuels with oxygen |
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US6968791B2 (en) * | 2003-08-21 | 2005-11-29 | Air Products And Chemicals, Inc. | Oxygen-enriched co-firing of secondary fuels in slagging cyclone combustors |
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US20060205592A1 (en) * | 2005-03-14 | 2006-09-14 | Chien-Chung Chao | Catalytic adsorbents for mercury removal from flue gas and methods of manufacture therefor |
SE531957C2 (sv) * | 2006-06-09 | 2009-09-15 | Aga Ab | Förfarande för lansning av syrgas vid en industriugn med konventionell brännare |
US7452203B2 (en) | 2006-10-16 | 2008-11-18 | Praxair Technology, Inc. | Stratified staging in kilns |
SE532338C2 (sv) * | 2008-04-22 | 2009-12-15 | Aga Ab | Förfarande samt anordning för förbränning av bränsle i fast fas |
US8689710B2 (en) * | 2008-09-26 | 2014-04-08 | Air Products And Chemicals, Inc. | Combustion system with precombustor |
US8696774B2 (en) * | 2010-01-07 | 2014-04-15 | General Electric Company | Gasification system and method using fuel injectors |
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CN103528056A (zh) * | 2013-10-11 | 2014-01-22 | 王龙陵 | 一种富氧煤粉燃烧方法及燃烧器 |
CN105987379B (zh) * | 2015-03-06 | 2018-09-14 | 烟台龙源电力技术股份有限公司 | 锅炉机组 |
CN106322366A (zh) * | 2015-07-01 | 2017-01-11 | 重庆市富燃科技有限责任公司 | 一种运用于燃煤对冲燃烧锅炉降低氮氧化物的方法 |
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2000
- 2000-05-19 US US09/573,177 patent/US6206949B1/en not_active Expired - Fee Related
-
2001
- 2001-05-17 BR BR0102032-3A patent/BR0102032A/pt not_active IP Right Cessation
- 2001-05-17 KR KR1020010026945A patent/KR100602766B1/ko not_active IP Right Cessation
- 2001-05-17 CN CNB01119524XA patent/CN1180197C/zh not_active Expired - Fee Related
- 2001-05-17 CA CA002348061A patent/CA2348061A1/en not_active Abandoned
- 2001-05-17 EP EP01112153A patent/EP1155731A1/en not_active Withdrawn
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US4739713A (en) * | 1986-06-26 | 1988-04-26 | Henkel Kommanditgesellschaft Auf Aktien | Method and apparatus for reducing the NOx content of flue gas in coal-dust-fired combustion systems |
EP0922772A1 (en) * | 1997-10-29 | 1999-06-16 | Praxair Technology, Inc. | Hot oxygen blast furnace injection system |
Also Published As
Publication number | Publication date |
---|---|
KR20010105244A (ko) | 2001-11-28 |
CN1180197C (zh) | 2004-12-15 |
BR0102032A (pt) | 2001-12-18 |
CN1324999A (zh) | 2001-12-05 |
CA2348061A1 (en) | 2001-11-19 |
EP1155731A1 (en) | 2001-11-21 |
US6206949B1 (en) | 2001-03-27 |
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