KR900012674A - 암모니아에 의한 산화질소의 선택적 환원을 위한 촉매 - Google Patents
암모니아에 의한 산화질소의 선택적 환원을 위한 촉매 Download PDFInfo
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- KR900012674A KR900012674A KR1019900002491A KR900002491A KR900012674A KR 900012674 A KR900012674 A KR 900012674A KR 1019900002491 A KR1019900002491 A KR 1019900002491A KR 900002491 A KR900002491 A KR 900002491A KR 900012674 A KR900012674 A KR 900012674A
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- 239000003054 catalyst Substances 0.000 title claims description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims 4
- 229910021529 ammonia Inorganic materials 0.000 title claims 2
- 150000003839 salts Chemical class 0.000 claims 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 3
- 150000003863 ammonium salts Chemical class 0.000 claims 3
- 238000000034 method Methods 0.000 claims 3
- 238000000465 moulding Methods 0.000 claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 238000001354 calcination Methods 0.000 claims 2
- 239000011964 heteropoly acid Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 239000007858 starting material Substances 0.000 claims 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 239000012018 catalyst precursor Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000000748 compression moulding Methods 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 150000004679 hydroxides Chemical class 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052746 lanthanum Inorganic materials 0.000 claims 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 239000010955 niobium Substances 0.000 claims 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims 1
- -1 oxides Chemical class 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 239000002243 precursor Substances 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 239000000080 wetting agent Substances 0.000 claims 1
- 229910052727 yttrium Inorganic materials 0.000 claims 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
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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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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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- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2251/2062—Ammonia
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- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
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- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
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- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 SiO2가 촉매 중에서 안정화재로서 사용될 경우 300℃이상 온도에서 작동되는 건조 석탄-연소장치의 연료가스 중에서 장시간 사용되는 동안 저하되는 활성 감소를 도시한 것이다(실시예 13참조).
제2 및 3도는 비교실시예 1에 따라 통상적으로 제조된 촉매와 비교하여, 본 발명이 촉매의 활성이 놀라울 정도로 높음을 나타낸 그래프이다.
Claims (7)
- 아나타제 변형 반응에서 독점적으로 또는 우세하게 존재하는, BET 표면이 40 내지 500, 바람직하게는 50 내지 300 및 더욱 바람직하게는 75 내지 150m2/g인 반응성 고-표면 산화티탄형의 하기 성분 A)를, 하기 성분 B4) 및 B2), 바람직하게는 이의 전구체와 함께, 세라믹 페이스트, 습윤제, 지지물질, 결합제, 성형 보조제 및 임이의 합기제의 압축 성형 또는 압축 공정에서 통상적으로사용되는 첨가제를 첨가하면서, 격렬하게 혼합하여 (kneading) 균일하게 혼합된 페이스트를 형성시키고 : 혼합된 페이스트를 성형물로 압출시킨 후 : 온도를 최대 60℃까지 점진적으로 증가시키면서 성형물을 건조시키고 : 최종온도가 300 내지 800℃ 범위로 될 때까지 주위 대기하에서 온도를 단계적으로 증가시켜 성형물을 하소시킴으로써 수득할 수 있는 성분 : A) 이산화티탄, B4) 텅스텐, 실리콘, 붕소, 알루미늄, 인, 지르코늄, 바륨, 이트륨, 란탄, 세륨의 산화물 중 하나 이상 및 B2) 바나듐, 니오븀, 몰리브덴, 철, 구리의 산화물 중 하나 이상(여기서, 성분 A) 및 B) 원소의 원자비는 1 : 0.001 내지 1 및 바람직하게는 1 : 0.02 내지 0.4 이다)을 함유함을 특징으로 하는 산화질소와 암모니아의 선택적으로 환원반응을 위한 촉매.
- 제1항에 있어서, 성분 B1) 및 B2)의 출발물질로서, 수산화물, 산화물, 염 또는 이종다중산 또는 이의 염, 바람직하게는 암모늄염을 사용함으로써 수득할 수 있는 촉매.
- 제1항 또는 2항에 있어서, 성분 B2)를 가하기 전에 혼합기에서 성분 A) 및 성분 B4)을 혼합하고 수득한 혼합물을 pH 7 내지 11, 바람직하게는 pH 8 내지 10에서 건조 예비 혼합시켜 잔여습기 함량이 3 내지 12중량% 바람직하게는 5 내지 10중량%가 되도록 하여 수득할 수 있는 촉매.
- 제3항에 있어서, 성분 B2)를 가하기 전에 400 내지 700℃ 온도에서 성분 A) 및 B4)의 건조-예비 혼합된 혼합물을 예비하소시킴으로써 수득할 수 있는 촉매.
- 제1항 내지 3항중 어느 한 항에 있어서, 성분 A), B4) 및 B2)로 이루어진 페이스트를 균일하게 혼합된 페이스트로 혼합하기 전에 300 내지 800℃ 및 바람직하게는 400 내지 700℃에서 예비하소시킴으로써 수득할 수 있는 촉매.
- 제1항 내지 5항중 어느 한 항에 있어서, 성분 B1) 및 B2)가 이종다중산 또는 이의 특정 염, 바람직하게는 암모늄염 형으로 사용되고, 그룹 B1) 및 B2)의 금속이 원자비 12 : 1 내지 1 : 12로 존재하는 이종다중산 중에서 존재함을 특징으로 하는 촉매.
- 제1항 또는 2항에 있어서, 성분 B2)의 출발물질을 혼합공정으로부터 분리시키고, 분리 생성물을 수용액 중에서 염 또는 이종 다중산 또는 이의 특정염, 바람직하게는 암모늄염형으로 포화시켜 성분 A 및 B4)으로 이루어진 바람직하게 하소된 촉매 전구체에 도입시켜 수득할 수 있는 촉매.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3906136.1 | 1989-02-28 | ||
DE3906136A DE3906136C1 (ko) | 1989-02-28 | 1989-02-28 |
Publications (1)
Publication Number | Publication Date |
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KR900012674A true KR900012674A (ko) | 1990-09-01 |
Family
ID=6375060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900002491A KR900012674A (ko) | 1989-02-28 | 1990-02-27 | 암모니아에 의한 산화질소의 선택적 환원을 위한 촉매 |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0385164B1 (ko) |
JP (1) | JPH02290250A (ko) |
KR (1) | KR900012674A (ko) |
AT (1) | ATE95443T1 (ko) |
AU (1) | AU615375B2 (ko) |
BR (1) | BR9000900A (ko) |
CA (1) | CA2010970A1 (ko) |
DD (1) | DD296854A5 (ko) |
DE (2) | DE3906136C1 (ko) |
DK (1) | DK0385164T3 (ko) |
ES (1) | ES2046549T3 (ko) |
RU (1) | RU2058814C1 (ko) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190104707A (ko) * | 2018-03-02 | 2019-09-11 | 한국과학기술연구원 | 질소산화물 환원용 촉매 및 이를 이용한 질소산화물 환원 시스템 |
KR20210119756A (ko) | 2020-03-25 | 2021-10-06 | 한국과학기술연구원 | 황산이온으로 기능화된 금속 산화물을 포함하는 전기적 펜톤 반응 시스템용 촉매, 이를 포함하는 전극 및 이를 이용한 전기적 펜톤 반응 시스템 |
KR20210119757A (ko) | 2020-03-25 | 2021-10-06 | 한국과학기술연구원 | 질산 이온으로 기능화된 전이금속 산화물들로 이루어진 난분해성 오염물 분해용 촉매, 이를 포함하는 난분해성 오염물 분해 시스템 |
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-
1989
- 1989-02-28 DE DE3906136A patent/DE3906136C1/de not_active Expired - Lifetime
-
1990
- 1990-02-12 DE DE90102664T patent/DE59002961D1/de not_active Revoked
- 1990-02-12 AT AT90102664T patent/ATE95443T1/de not_active IP Right Cessation
- 1990-02-12 EP EP90102664A patent/EP0385164B1/de not_active Revoked
- 1990-02-12 ES ES199090102664T patent/ES2046549T3/es not_active Expired - Lifetime
- 1990-02-12 DK DK90102664.1T patent/DK0385164T3/da active
- 1990-02-21 AU AU50026/90A patent/AU615375B2/en not_active Ceased
- 1990-02-23 BR BR909000900A patent/BR9000900A/pt active Search and Examination
- 1990-02-27 RU SU904743365A patent/RU2058814C1/ru active
- 1990-02-27 CA CA002010970A patent/CA2010970A1/en not_active Abandoned
- 1990-02-27 DD DD90338193A patent/DD296854A5/de not_active IP Right Cessation
- 1990-02-27 KR KR1019900002491A patent/KR900012674A/ko not_active Application Discontinuation
- 1990-02-28 JP JP2046018A patent/JPH02290250A/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20190104707A (ko) * | 2018-03-02 | 2019-09-11 | 한국과학기술연구원 | 질소산화물 환원용 촉매 및 이를 이용한 질소산화물 환원 시스템 |
KR20210119756A (ko) | 2020-03-25 | 2021-10-06 | 한국과학기술연구원 | 황산이온으로 기능화된 금속 산화물을 포함하는 전기적 펜톤 반응 시스템용 촉매, 이를 포함하는 전극 및 이를 이용한 전기적 펜톤 반응 시스템 |
KR20210119757A (ko) | 2020-03-25 | 2021-10-06 | 한국과학기술연구원 | 질산 이온으로 기능화된 전이금속 산화물들로 이루어진 난분해성 오염물 분해용 촉매, 이를 포함하는 난분해성 오염물 분해 시스템 |
US11897793B2 (en) | 2020-03-25 | 2024-02-13 | Korea Institute Of Science And Technology | Catalysts for Fenton system containing metal oxide containing functional group on surface and Fenton system using the same |
Also Published As
Publication number | Publication date |
---|---|
DD296854A5 (de) | 1991-12-19 |
AU615375B2 (en) | 1991-09-26 |
DK0385164T3 (da) | 1994-02-28 |
DE59002961D1 (de) | 1993-11-11 |
AU5002690A (en) | 1990-09-06 |
EP0385164B1 (de) | 1993-10-06 |
BR9000900A (pt) | 1991-02-13 |
ES2046549T3 (es) | 1994-02-01 |
DE3906136C1 (ko) | 1990-08-09 |
EP0385164A2 (de) | 1990-09-05 |
ATE95443T1 (de) | 1993-10-15 |
RU2058814C1 (ru) | 1996-04-27 |
JPH02290250A (ja) | 1990-11-30 |
EP0385164A3 (en) | 1990-11-28 |
CA2010970A1 (en) | 1990-08-31 |
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