KR102527239B1 - Nh3 과용량-허용 scr 촉매 - Google Patents
Nh3 과용량-허용 scr 촉매 Download PDFInfo
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- KR102527239B1 KR102527239B1 KR1020187001575A KR20187001575A KR102527239B1 KR 102527239 B1 KR102527239 B1 KR 102527239B1 KR 1020187001575 A KR1020187001575 A KR 1020187001575A KR 20187001575 A KR20187001575 A KR 20187001575A KR 102527239 B1 KR102527239 B1 KR 102527239B1
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- B01D53/34—Chemical or biological purification of waste gases
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- B01D53/54—Nitrogen compounds
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Abstract
Description
도 1b는 SV = 120,000 h-1에서 100 ppm NO, 100 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 N2O 형성의 양을 보여주는 그래프도이다.
도 1c는 SV = 120,000 h-1에서 100 ppm NO, 100 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 % NH3 변환율을 보여주는 그래프도이다.
도 1d는 SV = 120,000 h-1에서 100 ppm NO, 100 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 % N2 수율을 보여주는 그래프도이다.
도 2a는 SV = 60,000 h-1에서 100 ppm NO, 100 ppm 또는 140 ppm NH3(ANR = 1.0 또는 1.4), 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 % NO 변환율을 보여주는 그래프도이다.
도 2b는 SV = 60,000 h-1에서 100 ppm NO, 100 ppm 또는 140 ppm NH3(ANR = 1.0 또는 1.4), 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 N2O 형성의 양을 보여주는 그래프도이다.
도 2c는 SV = 60,000 h-1에서 100 ppm NO, 100 ppm 또는 140 ppm NH3(ANR = 1.0 또는 1.4), 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 % NH3 변환율을 보여주는 그래프도이다.
도 2d는 SV = 60,000 h-1에서 100 ppm NO, 100 ppm 또는 140 ppm NH3(ANR = 1.0 또는 1.4), 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 실시예 1 내지 5를 사용한 % N2 수율을 보여주는 그래프도이다.
도 3a는 SV = 120,000 h-1에서 300 ppm NO, 500 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 시스템 1 내지 4를 사용한 % NO 변환율을 보여주는 그래프도이다.
도 3b는 SV = 120,000 h-1에서 300 ppm NO, 500 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 시스템 1 내지 4를 사용한 N2O 형성의 양을 보여주는 그래프도이다.
도 3c는 SV = 120,000 h-1에서 300 ppm NO, 500 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 시스템 1 내지 4를 사용한 % NH3 변환율을 보여주는 그래프도이다.
도 3d는 SV = 120,000 h-1에서 300 ppm NO, 500 ppm NH3, 10% O2, 4.5% CO2, 4.5% H2O, 나머지는 N2를 사용하는 시스템 1 내지 4를 사용한 % N2 수율을 보여주는 그래프도이다.
Claims (15)
- 입구 및 출구를 가지며 저암모니아 저장의 지지체 상의 백금과 제1 SCR 촉매와의 블렌드를 포함하는 제1 코팅; 제2 SCR 촉매를 포함하는 제2 코팅으로 코팅된 기질을 포함하고; 여기서 제2 코팅은 제1 코팅에 적어도 부분적으로 중첩하며, 제1 SCR 촉매는 Cu-SCR 촉매 또는 Fe-SCR 촉매이고, 저암모니아 저장의 지지체는 m3의 지지체당 0.001 mmol 미만의 NH3을 저장하고, 저암모니아 저장의 지지체는 ≥100의 실리카-대-알루미나 비율을 가지는 제올라이트를 포함하는 규산질 지지체인, 촉매 물품.
- 제1 항에 있어서, 제2 코팅은 제1 코팅에 완전히 중첩하는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 저암모니아 저장의 지지체는 ≥1000의 실리카-대-알루미나 비율을 가지는 제올라이트를 포함하는 규산질 지지체인 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 저암모니아 저장의 지지체 상의 백금을 포함하는 블렌드는 팔라듐(Pd), 금(Au), 은(Ag), 루테늄(Ru) 또는 로듐(Rh) 중 적어도 하나를 더 포함하는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제1 SCR 촉매는 ACO, AEI, AEN, AFN, AFT, AFX, ANA, APC, APD, ATT, CDO, CHA, DDR, DFT, EAB, EDI, EPI, ERI, GIS, GOO, IHW, ITE, ITW, LEV, KFI, MER, MON, NSI, OWE, PAU, PHI, RHO, RTH, SAT, SAV, SIV, THO, TSC, UEI, UFI, VNI, YUG, ZON, BEA, MFI 및 FER 및 그것들의 혼합물 및/또는 호생체로 구성되는 프레임워크 타입의 군으로부터 선택된 분자체 상에 로딩된 Cu 또는 Fe를 포함하는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제2 SCR 촉매는 분자체 상에 지지된 비금속이고, 비금속은 바나듐(V), 몰리브덴(Mo) 및 텅스텐(W), 크롬(Cr), 세륨(Ce), 망간(Mn), 철(Fe), 코발트(Co), 니켈(Ni) 및 구리(Cu), 및 그것들의 혼합물로 구성되는 군으로부터 선택되는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제1 SCR 촉매가 제1 층으로서 존재하고 백금이 제2 층에 존재하며 NH3 및 NO를 포함하는 가스가 제2 층을 통과하기 전에 제1 층을 통과하는 비교용 조제물을 포함하는 촉매와 비교하여, 촉매가 200℃ 내지 300℃의 온도에서 암모니아로부터 N2 수율의 개선을 제공하며, N2 수율의 개선은 적어도 10%인 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제1 SCR 촉매가 제1 층으로서 존재하고 백금이 제2 층에 존재하며 NH3 및 NO를 포함하는 가스가 제2 층을 통과하기 전에 제1 층을 통과하는 비교용 조제물을 포함하는 촉매와 비교하여, 촉매가 200℃ 내지 350℃의 온도에서 NH3 및 NOx로부터 감소된 N2O 형성을 제공하는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 기질은 코디어라이트, 고기공도 코디어라이트, 금속성 기질, 압출된 벌집형 또는 필터인 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제2 SCR 촉매는 저암모니아 저장의 지지체 상의 백금과 제1 SCR 촉매와의 블렌드를 포함하는 촉매의 입구측에 위치되는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제2 SCR 촉매는 저암모니아 저장의 지지체 상의 백금과 제1 SCR 촉매와의 블렌드를 포함하는 촉매의 출구측에 위치되는 것을 특징으로 하는 촉매 물품.
- 제11 항에 있어서, 제2 SCR 촉매는 촉진된-Ce-Zr 또는 촉진된-MnO2를 포함하는 것을 특징으로 하는 촉매 물품.
- 제1 항에 있어서, 제2 코팅은 입구로부터 출구로 축을 따라 제1 코팅의 길이의 적어도 20%와 중첩하는 것을 특징으로 하는 촉매 물품.
- 200℃ 내지 350℃의 온도에서 배기가스 중의 암모니아 및 NOx로부터 N2 수율을 개선하는 방법으로서, 암모니아를 포함하는 배기가스를 제1 항의 촉매 물품과 접촉시키는 단계를 포함하는 방법.
- 암모니아 및 NOx를 포함하는 배기가스의 처리 방법으로서, 암모니아를 포함하는 배기가스를 제1 항의 촉매 물품과 접촉시키는 단계를 포함하는 방법.
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2016
- 2016-06-16 CN CN201680042218.0A patent/CN107847862B/zh active Active
- 2016-06-16 US US15/183,834 patent/US9878287B2/en active Active
- 2016-06-16 GB GB1610521.5A patent/GB2541500B/en active Active
- 2016-06-16 KR KR1020187001575A patent/KR102527239B1/ko active Active
- 2016-06-16 JP JP2017565294A patent/JP6830451B2/ja active Active
- 2016-06-16 WO PCT/US2016/037740 patent/WO2016205441A1/en active Application Filing
- 2016-06-16 DE DE102016111000.0A patent/DE102016111000A1/de not_active Ceased
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GB2541500A (en) | 2017-02-22 |
WO2016205441A1 (en) | 2016-12-22 |
US20180147530A1 (en) | 2018-05-31 |
CN107847862A (zh) | 2018-03-27 |
JP6830451B2 (ja) | 2021-02-17 |
US10322372B2 (en) | 2019-06-18 |
RU2715539C2 (ru) | 2020-02-28 |
CN107847862B (zh) | 2020-12-18 |
RU2018101694A3 (ko) | 2019-07-24 |
EP3310462A1 (en) | 2018-04-25 |
DE102016111000A1 (de) | 2016-12-22 |
GB2541500B (en) | 2019-06-26 |
JP2018526194A (ja) | 2018-09-13 |
US20190299160A1 (en) | 2019-10-03 |
US9878287B2 (en) | 2018-01-30 |
KR20180034400A (ko) | 2018-04-04 |
EP3310462B1 (en) | 2019-07-31 |
US20160367937A1 (en) | 2016-12-22 |
RU2018101694A (ru) | 2019-07-19 |
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