KR20200086343A - Scr 촉매 - Google Patents
Scr 촉매 Download PDFInfo
- Publication number
- KR20200086343A KR20200086343A KR1020207017051A KR20207017051A KR20200086343A KR 20200086343 A KR20200086343 A KR 20200086343A KR 1020207017051 A KR1020207017051 A KR 1020207017051A KR 20207017051 A KR20207017051 A KR 20207017051A KR 20200086343 A KR20200086343 A KR 20200086343A
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- South Korea
- Prior art keywords
- catalyst
- oxide
- amount
- exhaust gas
- oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
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- 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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
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- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
-
- 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
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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
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- Y02P20/00—Technologies relating to chemical industry
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- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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- 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
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Abstract
Description
도 1: 프레쉬(fresh) 상태에서, 비교 촉매 VK1, VK2, VK3, VK4 및 VK5와 비교되는 본 발명에 따른 촉매 K1(K1f, VK1f, VK2f, VK3f, VK4f 및 VK5f)에서 측정된 표준 SCR 반응에서의 질소 산화물 전환율.
도 2: 에이징된 상태에서, 비교 촉매 VK1, VK2, VK3, VK4 및 VK5와 비교되는 본 발명에 따른 촉매 K1(K1a, VK1a, VK2a, VK3a, VK4a 및 VK5a)에서 측정된 표준 SCR 반응에서의 질소 산화물 전환율.
도 3: 프레쉬 상태에서, 비교 촉매 VK1, VK2, VK3, VK4 및 VK5와 비교되는 본 발명에 따른 촉매 K1(K1f, VK1f, VK2f, VK3f, VK4f 및 VK5f)에서 측정된 고속 SCR 반응에서의 질소 산화물 전환율.
도 4: 에이징된 상태에서, 비교 촉매 VK1, VK2, VK3, VK4 및 VK5와 비교되는 본 발명에 따른 촉매 K1(K1a, VK1a, VK2a, VK3a, VK4a 및 VK5a)에서 측정된 고속 SCR 반응에서의 질소 산화물 전환율.
도 5: 프레쉬 상태 및 에이징된 상태에서, 비교 촉매 VK4, VK6 및 VK7과 비교되는 본 발명에 따른 촉매 K1에서 측정된, 200℃에서의 표준 SCR 반응 및 300℃에서의 고속 SCR 반응에서의 질소 산화물 전환율 대 WO3 함량.
도 6: 프레쉬 상태 및 에이징된 상태에서, 비교 촉매 VK3 및 VK8과 비교되는 본 발명에 따른 촉매 K1에서 측정된, 200℃에서의 표준 SCR 반응 및 300℃에서의 고속 SCR 반응에서의 질소 산화물 전환율 대 CeO2 함량.
도 7: 프레쉬 상태 및 에이징된 상태에서, 비교 촉매 VK2, VK9 및 VK10과 비교되는 본 발명에 따른 촉매 K1에서 측정된, 200℃에서의 표준 SCR 반응 및 300℃에서의 고속 SCR 반응에서의 질소 산화물 전환율 대 Sb2O5 함량.
Claims (9)
- 촉매로서,
각각의 경우에, 상기 촉매의 총 중량을 기준으로 하고, V2O5, WO3, CeO2, Sb2O5 또는 TiO2로 계산하여,
- 적어도 1종의 바나듐 산화물을 2 내지 6wt%의 양으로,
- 적어도 1종의 텅스텐 산화물을 0.5 내지 2wt%의 양으로,
- 적어도 1종의 세륨 산화물을 2 내지 4wt%의 양으로,
- 적어도 1종의 안티몬 산화물을 1 내지 7wt%의 양으로, 그리고
- 적어도 1종의 티탄 산화물을 총량이 100wt%가 되도록 하기 위해 측량되는 양으로 함유하는, 촉매. - 제1항에 있어서, 상기 촉매가 적어도 1종의 규소 산화물을 함유함을 특징으로 하는, 촉매.
- 제1항 또는 제2항에 있어서, 상기 촉매가 몰리브덴, 니오븀, 지르코늄, 탄탈룸 및/또는 하프늄의 적어도 1종의 산화물을 함유함을 특징으로 하는, 촉매.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 촉매가, 적어도 1종의 규소 산화물을, 상기 촉매의 총 중량을 기준으로 하고, SiO2로 계산하여, 2 내지 7wt%의 양으로 함유함을 특징으로 하는, 촉매.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 촉매가, 상기 촉매의 총 중량을 기준으로 하고, MoO3, Nb2O5, ZrO2, Ta2O5 또는 HfO2로 계산하여, 몰리브덴, 니오븀, 지르코늄, 탄탈룸 및/또는 하프늄의 적어도 1종의 산화물을, 상기 산화물들의 총량 0.5 내지 20wt%로 함유함을 특징으로 하는, 촉매.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 촉매가 캐리어 바디(carrier body) 상에 코팅 형태로 존재함을 특징으로 하는, 촉매.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 촉매가 캐리어 바디의 일부로서 존재함을 특징으로 하는, 촉매.
- 린번(lean-burn) 내연 엔진의 배기 가스 중의 질소 산화물의 환원 방법으로서,
- 환원제를 질소 산화물 함유 배기 가스에 첨가하는 단계, 및
- 생성되는 질소 산화물 함유 배기 가스와 환원제의 혼합물을 제1항 내지 제7항 중 어느 한 항에 기재된 촉매 위로 통과시키는 단계를 포함하는, 방법. - 디젤 배기 가스를 처리하기 위한 배기 가스 정화 시스템으로서,
- 산화 촉매,
- 디젤 입자 필터, 및
- 제1항 내지 제7항 중 어느 한 항에 기재된 촉매
또는
- 산화 촉매, 및
- 디젤 입자 필터로서, 제1항 내지 제7항 중 어느 한 항에 기재된 촉매가 상기 필터 상의 코팅으로서 존재하는 디젤 입자 필터를 포함하는, 시스템.
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| WO2021010768A1 (ko) * | 2019-07-16 | 2021-01-21 | 주식회사 국일인토트 | 촉매용 코팅 조성물을 포함하는 촉매 반응 장치 및 코팅 방법 |
| CN110773211B (zh) * | 2019-09-18 | 2022-09-13 | 上海瀚昱环保材料有限公司 | 高-低温脱硝催化剂及其制备方法 |
| CN114364447B (zh) * | 2019-09-19 | 2024-08-30 | 巴斯夫公司 | 选择性催化还原催化剂组合物、包含其的催化制品和制备催化制品的方法 |
| EP4149661A4 (en) * | 2020-05-15 | 2024-05-22 | BASF Corporation | CATALYST FOR SELECTIVE CATALYTIC REDUCTION AND CATALYTIC ARTICLE THEREFOR |
| US20230347288A1 (en) * | 2020-05-15 | 2023-11-02 | Basf Corporation | Selective catalytic reduction catalyst and catalytic article comprising the same |
| KR102438438B1 (ko) * | 2020-11-25 | 2022-09-01 | 한서대학교 산학협력단 | 고정배출원의 배기가스 처리 저온 탈질촉매 및 그 제조방법 |
| EP4063003A1 (en) | 2021-03-23 | 2022-09-28 | UMICORE AG & Co. KG | Filter for the aftertreatment of exhaust gases of internal combustion engines |
| CN115707513B (zh) * | 2021-08-19 | 2024-07-05 | 巴斯夫公司 | 用于选择性催化还原的金属氧化物催化剂 |
| CN117836506A (zh) | 2021-09-27 | 2024-04-05 | 巴斯夫公司 | 包含含锑催化剂的催化体系 |
| DE102022130469A1 (de) | 2022-11-17 | 2024-05-23 | Umicore Ag & Co. Kg | Verfahren und Vorrichtung zum Herstellen eines Substrats für eine Abgasnachbehandlungseinrichtung |
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| EP4360742A1 (en) | 2023-08-03 | 2024-05-01 | Umicore AG & Co. KG | Enhancement of the denox scr performances of vandium-based scr catalysts by using washcoats with different vanadium contents |
| DE102023132075A1 (de) * | 2023-11-17 | 2025-05-22 | Umicore Ag & Co. Kg | Katalytischer Partikelfilter |
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| US20210402376A1 (en) | 2021-12-30 |
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| CN116474763B (zh) | 2025-04-04 |
| JP2021502892A (ja) | 2021-02-04 |
| US20200276561A1 (en) | 2020-09-03 |
| EP3710158A1 (de) | 2020-09-23 |
| BR112020009690A2 (pt) | 2020-11-10 |
| JP7222996B2 (ja) | 2023-02-15 |
| CN111356526B (zh) | 2023-04-18 |
| KR102730573B1 (ko) | 2024-11-18 |
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