KR100999611B1 - 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법 - Google Patents
선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법 Download PDFInfo
- Publication number
- KR100999611B1 KR100999611B1 KR1020070131557A KR20070131557A KR100999611B1 KR 100999611 B1 KR100999611 B1 KR 100999611B1 KR 1020070131557 A KR1020070131557 A KR 1020070131557A KR 20070131557 A KR20070131557 A KR 20070131557A KR 100999611 B1 KR100999611 B1 KR 100999611B1
- Authority
- KR
- South Korea
- Prior art keywords
- amount
- ammonia
- selective catalytic
- catalytic reduction
- occlusion
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
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- 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
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- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
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- 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
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
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- 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
-
- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
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- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
-
- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/07—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters
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- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/18—Ammonia
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- 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
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- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
- F01N2610/146—Control thereof, e.g. control of injectors or injection valves
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- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1622—Catalyst reducing agent absorption capacity or consumption amount
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- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (5)
- 선택적 촉매 환원 장치 내의 온도 변화량을 측정하는 단계;상기 선택적 촉매 환원 장치 내의 온도 변화량이 증가하는지 판단하는 단계;만일 상기 선택적 촉매 환원 장치 내의 온도 변화량이 증가하면, 온도 변화량에 따른 암모니아 흡장 보정량을 계산하는 단계;상기 암모니아 흡장 보정량을 이용하여 암모니아 흡장 변화량을 계산하는 단계; 그리고상기 암모니아 흡장 변화량을 이용하여 현재의 암모니아 흡장량을 계산하는 단계;를 포함하는 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법.
- 제 1항에 있어서,선택적 촉매 환원 장치 내의 온도 변화량이 증가하지 않으면, 상기 암모니아 흡장 보정량은 "0"으로 정하는 단계를 더 포함하는 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법.
- 제 1항에 있어서,상기 온도 변화량에 따른 암모니아 흡장 보정량은 맵에 저장되어 있는 것을 특징으로 하는 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법.
- 제 1항에 있어서,상기 암모니아 흡장 변화량은, 암모니아 흡장 변화량 = 암모니아 분사량 - 반응량 - 흡장 보정량의 식으로부터 계산되되,상기 암모니아 분사량은 배기가스의 유량과 배기가스 내의 질소산화물의 양에 따라 정해지고,상기 반응량은 이전 암모니아 흡장량, 선택적 촉매 환원 장치 내의 온도, 그리고 질소산화물의 양에 따라 정해지는 것을 특징으로 하는 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법.
- 제 4항에 있어서,현재의 암모니아 흡장량은, 현재의 암모니아 흡장량 = 이전 암모니아 흡장량 + 암모니아 흡장 변화량의 식으로부터 계산되는 것을 특징으로 하는 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070131557A KR100999611B1 (ko) | 2007-12-14 | 2007-12-14 | 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법 |
| US12/267,320 US8380353B2 (en) | 2007-12-14 | 2008-11-07 | Method for calculating loading amount of ammonia in selective catalytic reduction apparatus |
| DE102008058286A DE102008058286A1 (de) | 2007-12-14 | 2008-11-20 | Verfahren zur Berechnung der Beladungsmenge von Ammoniak in einem selektiven katalytischen Reduktionsgerät |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070131557A KR100999611B1 (ko) | 2007-12-14 | 2007-12-14 | 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20090064002A KR20090064002A (ko) | 2009-06-18 |
| KR100999611B1 true KR100999611B1 (ko) | 2010-12-08 |
Family
ID=40680259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020070131557A Expired - Fee Related KR100999611B1 (ko) | 2007-12-14 | 2007-12-14 | 선택적 촉매 환원 장치 내의 암모니아 흡장량 계산 방법 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8380353B2 (ko) |
| KR (1) | KR100999611B1 (ko) |
| DE (1) | DE102008058286A1 (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100326059A1 (en) * | 2009-06-26 | 2010-12-30 | Gm Global Technology Operations, Inc. | Selective catalytic reduction exhaust aftertreatment system and engine incorporating the same |
| KR102664097B1 (ko) * | 2019-04-25 | 2024-05-07 | 현대자동차주식회사 | Scr 후처리 시스템의 환원제 흡장량 제어 시스템 및 방법 |
| CN112324547B (zh) * | 2020-10-31 | 2021-12-31 | 同济大学 | 一种适用于混合燃料的选择性催化还原控制方法及系统 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490813B1 (ko) | 2002-03-29 | 2005-05-24 | 미츠비시 후소 트럭 앤드 버스 코포레이션 | 내연 기관의 NOx 정화 장치 |
| JP2006527815A (ja) | 2003-06-18 | 2006-12-07 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 還元体添加の制御方法 |
| JP3979153B2 (ja) | 2002-04-03 | 2007-09-19 | 三菱ふそうトラック・バス株式会社 | 内燃機関のNOx浄化装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315278A1 (de) * | 1993-05-07 | 1994-11-10 | Siemens Ag | Verfahren und Einrichtung zur Dosierung eines Reduktionsmittels in ein stickoxidhaltiges Abgas |
-
2007
- 2007-12-14 KR KR1020070131557A patent/KR100999611B1/ko not_active Expired - Fee Related
-
2008
- 2008-11-07 US US12/267,320 patent/US8380353B2/en not_active Expired - Fee Related
- 2008-11-20 DE DE102008058286A patent/DE102008058286A1/de not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490813B1 (ko) | 2002-03-29 | 2005-05-24 | 미츠비시 후소 트럭 앤드 버스 코포레이션 | 내연 기관의 NOx 정화 장치 |
| JP3979153B2 (ja) | 2002-04-03 | 2007-09-19 | 三菱ふそうトラック・バス株式会社 | 内燃機関のNOx浄化装置 |
| JP2006527815A (ja) | 2003-06-18 | 2006-12-07 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 還元体添加の制御方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090064002A (ko) | 2009-06-18 |
| US20090155153A1 (en) | 2009-06-18 |
| DE102008058286A1 (de) | 2009-06-18 |
| US8380353B2 (en) | 2013-02-19 |
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