KR101829322B1 - 배기가스의 질소산화물 저감장치 - Google Patents
배기가스의 질소산화물 저감장치 Download PDFInfo
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- KR101829322B1 KR101829322B1 KR1020160100715A KR20160100715A KR101829322B1 KR 101829322 B1 KR101829322 B1 KR 101829322B1 KR 1020160100715 A KR1020160100715 A KR 1020160100715A KR 20160100715 A KR20160100715 A KR 20160100715A KR 101829322 B1 KR101829322 B1 KR 101829322B1
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 202
- 239000007789 gas Substances 0.000 title claims abstract description 76
- 230000009467 reduction Effects 0.000 claims abstract description 20
- 238000006722 reduction reaction Methods 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 238000010531 catalytic reduction reaction Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 20
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 17
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
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- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HFLAMWCKUFHSAZ-UHFFFAOYSA-N niobium dioxide Chemical compound O=[Nb]=O HFLAMWCKUFHSAZ-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- 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]
-
- 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
- F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—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 using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
- F01N3/0275—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 using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means using electric discharge means
-
- 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
- F01N2570/14—Nitrogen oxides
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
도 2는 도 1의 고전압 나노펄스 생성기의 구성을 개략적으로 나타낸 회로도이다.
도 3은 도 2의 내부 전송 선로 및 외부 전송 선로의 구성을 나타낸 도면이다.
도 4a 및 도 4b는 도 1의 나노펄스 스트리머 처리기를 개략적으로 나타낸 도면들이다.
도 5은 도 1의 고전압 나노펄스 생성기에 의해 생성된 고전압 나노펄스의 파형을 개략적으로 나타낸 그래프이다.
도 6은 본 발명의 다른 실시예에 따른 배기가스의 질소산화물 저감장치를 나타낸 구성도이다.
도 7은 본 발명의 또 다른 실시예에 따른 질소산화물 저감장치에서 배기가스량에 따라 변화하는 고전압 나노펄스의 진폭을 나타낸 그래프이다.
도 8은 본 발명의 또 다른 실시예에 따른 질소산화물 저감장치에서 배기가스량에 따라 변화하는 고전압 나노펄스의 주기를 나타낸 그래프이다.
10: 배기관
20: 환원제 공급부
30: 고전압 나노펄스 생성기
31: 전원부
32: 충전부
33: 주기제어 스위치
34: 펄스 트랜스포머
35: 갭 스위치
36: 내부 전송 선로
37: 외부 전송 선로
40: 나노펄스 스트리머 처리기
45: 자기장 인가부
50: 선택적 촉매 환원기
110: 외부 전극
112: 중간 전극
114: 내부 전극
Claims (9)
- 고전압 나노펄스를 이용하여 디젤엔진의 배기가스 중 질소산화물을 저감시키는 장치로서:
상기 배기가스에 직접적으로 고전압 나노펄스를 인가하여 나노펄스 스트리머 방전을 생성하는 나노펄스 스트리머 처리기;
상기 고전압 나노펄스를 생성하여 상기 나노펄스 스트리머 처리기에 제공하는 고전압 나노펄스 생성기;
상기 나노펄스 스트리머 처리기를 통과한 상기 배기가스에 대하여 선택적 촉매 환원 반응을 수행하는 선택적 촉매 환원기; 및
상기 선택적 촉매 환원기에 환원제를 제공하는 환원제 공급부를 포함하되,
상기 고전압 나노펄스 생성기는, 전원으로부터 충전전압을 생성하는 충전부; 상기 충전전압을 고전압으로 승압하는 펄스 트랜스포머; 상기 펄스 트랜스포머의 양단에 연결되어 고전압 나노펄스를 출력하는 외부 전송 선로 및 내부 전송 선로; 및 상기 고전압 나노펄스의 펄스폭을 결정하는 갭 스위치를 포함하는 배기가스의 질소산화물 저감장치. - 제1항에 있어서,
상기 나노펄스 스트리머 처리기는, 상기 배기가스 내의 O2를 O 또는 O3로 분해 또는 합성시키고, 상기 배기가스 내의 일산화질소를 이산화질소로 변환시키는 것을 특징으로 하는 배기가스의 질소산화물 저감장치. - 삭제
- 제1항에 있어서,
상기 내부 전송 선로는 상기 고전압 나노펄스를 출력하는 내부 전극과, 상기 내부 전극을 둘러싼 중간 전극을 포함하고, 상기 외부 전송 선로는 상기 중간 전극과, 상기 중간 전극을 둘러싼 외부 전극을 포함하는 배기가스의 질소산화물 저감장치. - 제1항에 있어서,
상기 고전압 나노펄스의 전압은 5 내지 200kV인 것을 특징으로 하는 배기가스의 질소산화물 저감장치. - 제1항에 있어서,
상기 고전압 나노펄스의 폭은 1 내지 1000ns인 것을 특징으로 하는 배기가스의 질소산화물 저감장치. - 제1항에 있어서, 상기 고전압 나노펄스 생성기는, 상기 배기가스의 배출 사이클에 따라 상기 고전압 나노펄스의 인가 전압의 크기를 제어하는 것을 특징으로 하는 배기가스의 질소산화물 저감장치.
- 제1항에 있어서,
상기 고전압 나노펄스 생성기는, 상기 배기가스의 배출 사이클에 따라 상기 고전압 나노펄스의 인가 주기를 제어하는 것을 특징으로 하는 배기가스의 질소산화물 저감장치. - 제1항에 있어서,
상기 나노펄스 스트리머 방전을 생성하는 동안, 상기 나노펄스 스트리머 처리기 내의 상기 배기가스에 자기장을 인가하는 자기장 인가부를 더 포함하는 배기가스의 질소산화물 저감장치.
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006170001A (ja) * | 2004-12-14 | 2006-06-29 | Toyota Motor Corp | 燃料又は還元剤添加装置、内燃機関及び排ガス浄化装置 |
JP2009270560A (ja) * | 2008-04-08 | 2009-11-19 | Mitsubishi Electric Corp | 排気ガス浄化装置 |
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JP2006170001A (ja) * | 2004-12-14 | 2006-06-29 | Toyota Motor Corp | 燃料又は還元剤添加装置、内燃機関及び排ガス浄化装置 |
JP2009270560A (ja) * | 2008-04-08 | 2009-11-19 | Mitsubishi Electric Corp | 排気ガス浄化装置 |
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