WO2012018186A3 - 엔진의 후처리 장치 - Google Patents

엔진의 후처리 장치 Download PDF

Info

Publication number
WO2012018186A3
WO2012018186A3 PCT/KR2011/005369 KR2011005369W WO2012018186A3 WO 2012018186 A3 WO2012018186 A3 WO 2012018186A3 KR 2011005369 W KR2011005369 W KR 2011005369W WO 2012018186 A3 WO2012018186 A3 WO 2012018186A3
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
engine
nitrogen oxide
discharged
urea solution
Prior art date
Application number
PCT/KR2011/005369
Other languages
English (en)
French (fr)
Other versions
WO2012018186A2 (ko
Inventor
박윤섭
Original Assignee
두산인프라코어 주식회사
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 두산인프라코어 주식회사 filed Critical 두산인프라코어 주식회사
Priority to US13/813,834 priority Critical patent/US9084968B2/en
Priority to CN201180038246.2A priority patent/CN103052775B/zh
Publication of WO2012018186A2 publication Critical patent/WO2012018186A2/ko
Publication of WO2012018186A3 publication Critical patent/WO2012018186A3/ko

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)

Abstract

본 발명은 엔진의 후처리 장치를 개시한다. 상기 엔진의 후처리 장치는 엔진(1)의 연소실로부터 배기관(2)을 통해 외부로 배출되는 배기가스에 요소 수용액을 분사시키는 요소 수용액 분사부(3)와, 상기 요소 수용액 분사부(3)로부터 분사되는 요소 수용액과 혼합되는 배기가스 중의 질소산화물(NOx)을 무해한 물(H2O)과 질소(N2)로 전환시키는 질소산화물 처리부(4)와, 상기 질소산화물 처리부(4)로부터 배출되는 배기가스 중의 탄화수소(HC)와 일산화탄소(CO)를 저감시키는 OC(Oxidation Catalyst)(5)를 포함하는 엔진의 후처리 장치에 있어서, 상기 엔진(1)의 연소실로부터 외부로 배출되는 배기가스 중의 질소산화물(NOx)의 농도 수준에 따라, 상기 엔진(1)의 연소실로부터 외부로 배출되는 배기가스를 제1 처리경로(15)와 제2 처리경로(16)로 일정 비율로 배분하여 공급하는 배출가스 제어유닛(20)을 포함하는 것을 특징으로 한다. 본 발명은 유해한 질소산화물(NOx)을 무해한 물(H2O)과 질소(N2)로 전환시키는 SCR의 효율성과 내구성을 확보할 수 있게 한다.
PCT/KR2011/005369 2010-08-02 2011-07-21 엔진의 후처리 장치 WO2012018186A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/813,834 US9084968B2 (en) 2010-08-02 2011-07-21 After treatment device of engine
CN201180038246.2A CN103052775B (zh) 2010-08-02 2011-07-21 发动机的后处理装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100074675A KR101671526B1 (ko) 2010-08-02 2010-08-02 엔진의 후처리 장치
KR10-2010-0074675 2010-08-02

Publications (2)

Publication Number Publication Date
WO2012018186A2 WO2012018186A2 (ko) 2012-02-09
WO2012018186A3 true WO2012018186A3 (ko) 2012-05-24

Family

ID=45559898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/005369 WO2012018186A2 (ko) 2010-08-02 2011-07-21 엔진의 후처리 장치

Country Status (4)

Country Link
US (1) US9084968B2 (ko)
KR (1) KR101671526B1 (ko)
CN (1) CN103052775B (ko)
WO (1) WO2012018186A2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013223313A1 (de) * 2013-11-15 2015-05-21 Robert Bosch Gmbh Abgasnachbehandlungssystem
US20180274416A1 (en) * 2017-03-23 2018-09-27 GM Global Technology Operations LLC Aftertreatment system for motor vehicle
KR20200104504A (ko) 2019-02-27 2020-09-04 현대자동차주식회사 차량의 엔진 후처리 시스템

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3260363B2 (ja) * 1989-09-11 2002-02-25 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 内燃機関
JP2002364353A (ja) * 2001-06-11 2002-12-18 Mitsubishi Motors Corp 排ガス浄化装置
KR20030025193A (ko) * 2001-09-19 2003-03-28 가부시키가이샤 고마쓰 세이사쿠쇼 내연기관의 배기가스 정화장치
KR20100000535A (ko) * 2008-06-25 2010-01-06 현대자동차주식회사 선택적 촉매 환원 시스템의 요소 주입량 결정 방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3491341B2 (ja) * 1994-06-24 2004-01-26 いすゞ自動車株式会社 ディーゼル機関の排気浄化装置
JP3401955B2 (ja) 1994-11-07 2003-04-28 日産自動車株式会社 内燃機関の排気浄化装置
JPH08144789A (ja) 1994-11-25 1996-06-04 Fuji Oozx Inc 排気ガスの浄化制御装置
JP3552489B2 (ja) * 1997-09-25 2004-08-11 トヨタ自動車株式会社 内燃機関の排気浄化装置
AU2002360311A1 (en) * 2001-12-10 2003-06-23 Donaldson Company, Inc. Exhaust treatment control system for an internal combustion engine
DE102005015479A1 (de) * 2005-04-05 2006-10-12 Daimlerchrysler Ag Vorrichtung und Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors
KR100734899B1 (ko) * 2006-05-29 2007-07-03 한국기계연구원 Ｈｃ흡착촉매를 갖는 디젤엔진용 후처리시스템 및후처리방법
JP4646934B2 (ja) * 2007-03-01 2011-03-09 株式会社日立ハイテクノロジーズ エンジンの排気処理装置及びこれを用いたエンジンの排気処理方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3260363B2 (ja) * 1989-09-11 2002-02-25 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 内燃機関
JP2002364353A (ja) * 2001-06-11 2002-12-18 Mitsubishi Motors Corp 排ガス浄化装置
KR20030025193A (ko) * 2001-09-19 2003-03-28 가부시키가이샤 고마쓰 세이사쿠쇼 내연기관의 배기가스 정화장치
KR20100000535A (ko) * 2008-06-25 2010-01-06 현대자동차주식회사 선택적 촉매 환원 시스템의 요소 주입량 결정 방법

Also Published As

Publication number Publication date
CN103052775B (zh) 2015-06-03
US20130209317A1 (en) 2013-08-15
KR101671526B1 (ko) 2016-11-02
US9084968B2 (en) 2015-07-21
WO2012018186A2 (ko) 2012-02-09
KR20120012608A (ko) 2012-02-10
CN103052775A (zh) 2013-04-17

Similar Documents

Publication Publication Date Title
WO2010114876A3 (en) Hc-scr system for lean burn engines
WO2006121993A3 (en) Method and apparatus for selective catalytic reduction of nox
EA201491619A1 (ru) Способ и система для удаления вредных соединений из выхлопного газа двигателя
EP2357331A4 (en) EMISSION CONTROL DEVICE
RU2009135074A (ru) Система доочистки выхлопных газов
WO2011011565A3 (en) Oxygen storage catalyst with decreased ceria reduction temperature
WO2008045499A3 (en) Dual injector system for diesel emissions control
WO2007084691A3 (en) SYSTEM AND METHOD FOR NOx REDUCTION OPTIMIZATION
RU2014145035A (ru) Способ для двигателя (варианты) и система двигателя
DE502008000454D1 (de) Abgasreinigungssystem zur Behandlung von Motorenabgasen mittels SCR-Katalysator
WO2009135010A3 (en) Apparatus, system, and method for controlling ammonia slip from an scr catalyst
WO2007147041A3 (en) APPARATUS AND METHOD FOR NOx REDUCTION
EP2541012A3 (en) System for purifying exhaust gas and corresponding exhaust system
WO2011082401A3 (en) Engine and exhaust aftertreatment control
EP1698769A3 (en) Method and device for supply of additive for exhaust gas cleaning
ATE397715T1 (de) System und verfahren zur verbesserung der abgaskontrolle einer brennkraftmaschine durch pulsierende kraftstoffreinspritzung
WO2012005527A3 (ko) 요소 수용액과 엔진 배기가스의 혼합을 위한 정적 혼합기
RU2011122628A (ru) Устройство очистки выхлопных газов
CN107023355A (zh) 废气净化系统及其控制方法
WO2009135060A3 (en) Apparatus, system, and method for reducing nox emissions on an scr catalyst
DE502008000568D1 (de) Abgasnachbehandlungssystem für eine Verbrennungskraftmaschine
RU2011134878A (ru) Устройство и способ регенерации фильтра твердых частиц, расположенного в линии отработанного газа двигателя внутреннего сгорания
WO2011060111A3 (en) Wall flow filter loaded with scr catalyst, systems and methods of exhaust gas treatment
WO2008022751A3 (de) Verfahren zum betreiben einer abgasreinigungsanlage an einem mager betriebenen ottomotor
GB201009775D0 (en) Method of treating nitrogen oxides and/or particulate matter in lean gas

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180038246.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11814786

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 13813834

Country of ref document: US

122 Ep: pct application non-entry in european phase

Ref document number: 11814786

Country of ref document: EP

Kind code of ref document: A2