KR20090110366A - 환원제 조성물의 제조 방법 - Google Patents
환원제 조성물의 제조 방법 Download PDFInfo
- Publication number
- KR20090110366A KR20090110366A KR1020097018390A KR20097018390A KR20090110366A KR 20090110366 A KR20090110366 A KR 20090110366A KR 1020097018390 A KR1020097018390 A KR 1020097018390A KR 20097018390 A KR20097018390 A KR 20097018390A KR 20090110366 A KR20090110366 A KR 20090110366A
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- South Korea
- Prior art keywords
- urea
- ammonium formate
- solution
- water
- aqueous ammonium
- 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.)
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Classifications
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- 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
-
- 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
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/90—Injecting reactants
-
- 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
- B01D53/92—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- 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
-
- 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
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/2073—Means for generating a reducing substance from the exhaust gases
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Catalysts (AREA)
Abstract
Description
| 성질 | 단위 | 한계 | |
| 최소 | 최대 | ||
| 우레아 함량a,e | % (m/m)d | 31.8 33.2 | |
| 밀도 20℃b,e | kg/㎤ | 1087 | 1093 |
| 굴절률 20℃c,e | ____ | 1.3814 | 1.3843 |
| 알칼리도 NH3e | % (m/m)d | -- | 0.2 |
| 뷰렛e | % (m/m)d | -- | 0.3 |
| 알데히드e | mg/kg | -- | 5 |
| 불용성 물질e | mg/kg | -- | 20 |
| 인산염(PO4)e | mg/kg | -- | 0.5 |
| 칼슘 | mg/kg | -- | 0.5 |
| 철 | mg/kg | -- | 0.5 |
| 구리 | mg/kg | -- | 0.2 |
| 아연 | mg/kg | -- | 0.2 |
| 크롬 | mg/kg | -- | 0.2 |
| 니켈 | mg/kg | -- | 0.2 |
| 알루미늄e | mg/kg | -- | 0.5 |
| 마그네슘 | mg/kg | -- | 0.5 |
| 나트륨 | mg/kg | -- | 0.5 |
| 칼륨 | mg/kg | -- | 0.5 |
| 동일성e | -- | 기준에 비하여 동일함 | |
| 용액 1 | 용액 2 | |
| 우레아 | 25.4 | 19.4 |
| 포름산암모늄 | 19.5 | 28.7 |
| H2O | 56.3 | 52.9 |
| Ca | 0.8 | 2.6 |
| Fe | <0.2 | <0.2 |
| Mg | 0.3 | 1.3 |
| Al | <0.5 | <0.5 |
| Na | <0.5 | <0.5 |
| K | <0.5 | <0.5 |
| 밀도 | 1.11 | 1.12 |
| 빙점 | -23 | -30 |
Claims (15)
- 출발 물질로서 암모늄 공급원과 포름산염 공급원을 사용하여 포름산암모늄 수용액을 현장에서 (in situ) 제조하고, 상기 포름산암모늄 수용액에 우레아를 첨가하여 이루어지는 것이 특징인, 우레아 20 내지 40 wt%, 포름산암모늄 20 내지 40 wt% 및 물을 함유하는, 질소 산화물들의 선택적 촉매 환원용 환원제 조성물의 제조 방법.
- 제1항에 있어서, 상기 암모늄 공급원은 암모니아인 것을 특징으로 하는 제조 방법.
- 제1항 또는 제2항에 있어서, 상기 포름산염 공급원은 포름산 또는 포름산메틸인 것을 특징으로 하는 제조 방법.
- 제1항에 있어서,먼저 단계 A에서, (i) 포름산, 암모니아 및 물, 또는 (ii) 포름산메틸, 암모니아 및 물로부터 포름산암모늄 수용액 20 내지 55 wt%를 제조하고,별도의 단계 B에서, 상기 단계 A에서 얻은 포름산암모늄 수용액 20 내지 55 wt% 및 우레아를 함께 혼합하거나,또는 별법으로,관형 반응기 내에서, (i) 포름산, 암모니아 및 물, 또는 (ii) 포름산메틸, 암모니아 및 물로부터 포름산암모늄 수용액 20 내지 55 wt%를 제조하고,동일한 공정 단계에서, 우레아를 상기 관형 반응기의 순환에 직접 첨가하는 것을 특징으로 하는 제조 방법.
- 제1항 내지 제4항 중 어느 하나의 항에 있어서, 상기 포름산암모늄 수용액은 수용액을 냉각시키고, 물을 증발시키며, 수용액을 혼합시키기 위한 장치가 구비된 관형 반응기 내에서 제조되는 것을 특징으로 하는 제조 방법.
- 제1항 내지 제5항 중 어느 하나의 항에 있어서, 상기 포름산암모늄 수용액은 과압력에서 제조되는 것을 특징으로 하는 제조 방법.
- 제1항 내지 제6항 중 어느 하나의 항에 있어서, 상기 포름산암모늄 수용액은 20 내지 80℃의 온도에서 제조되는 것을 특징으로 하는 제조 방법.
- 제1항 내지 제7항 중 어느 하나의 항에 있어서, 상기 포름산암모늄 수용액은 반응될 상기 포름산암모늄 수용액의 관형 반응기 내에서의 순환에 의하여 혼합되는 것을 특징으로 하는 제조 방법.
- 제1항 내지 제8항 중 어느 하나의 항에 있어서, 반응 (ii)의 경우, 반응에서 생성되는 메탄올을 포름산암모늄 수용액으로부터 분리하는 단계가 더 포함되는 것을 특징으로 하는 제조 방법.
- 제1항 내지 제9항 중 어느 하나의 항에 있어서, 상기 포름산의 농도는 85 wt% 이상인 것을 특징으로 하는 제조 방법.
- 제1항 내지 제9항 중 어느 하나의 항에 있어서, 상기 포름산의 농도는 90 wt% 이상인 것을 특징으로 하는 제조 방법.
- 제1항 내지 제11항 중 어느 하나의 항에 있어서, 상기 우레아는 고체 우레아인 것을 특징으로 하는 제조 방법.
- 제1항 내지 제11항 중 어느 하나의 항에 있어서, 상기 우레아는 액체 상태이고, 농도는 20 내지 100 wt%인 것을 특징으로 하는 제조 방법.
- 제12항에 있어서, 상기 우레아는 농도가 99 wt% 이상인 것을 특징으로 하는 제조 방법.
- 제1항 내지 제14항 중 어느 하나의 항에 있어서, 상기 공정은 연속식인 것을 특징으로 하는 제조 방법.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20070134 | 2007-02-15 | ||
| FI20070134A FI120966B (fi) | 2007-02-15 | 2007-02-15 | Menetelmä pelkistysainekoostumuksen valmistamiseksi |
| PCT/FI2008/050062 WO2008099063A1 (en) | 2007-02-15 | 2008-02-14 | A method for the preparation of a reducing agent composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20090110366A true KR20090110366A (ko) | 2009-10-21 |
| KR101368989B1 KR101368989B1 (ko) | 2014-02-28 |
Family
ID=37832178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020097018390A Expired - Fee Related KR101368989B1 (ko) | 2007-02-15 | 2008-02-14 | 환원제 조성물의 제조 방법 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8133460B2 (ko) |
| EP (1) | EP2111285B8 (ko) |
| JP (1) | JP5276022B2 (ko) |
| KR (1) | KR101368989B1 (ko) |
| CN (1) | CN101622052B (ko) |
| CA (1) | CA2678079C (ko) |
| FI (1) | FI120966B (ko) |
| RU (1) | RU2441692C2 (ko) |
| WO (1) | WO2008099063A1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8999277B2 (en) | 2013-06-17 | 2015-04-07 | Deere & Company | Diesel exhaust fluid formulation that reduces urea deposits in exhaust systems |
| US8961818B2 (en) * | 2013-06-17 | 2015-02-24 | Deere & Company | Diesel exhaust fluid formulation that reduces urea deposits in exhaust systems |
| CN104128090A (zh) * | 2014-08-03 | 2014-11-05 | 长春市永畅实业有限责任公司 | 一种满足车辆低温去除氮氧化物的还原剂 |
| CN109939566B (zh) * | 2019-04-16 | 2021-07-30 | 灵谷化工集团有限公司 | 一种防结晶耐低温车用尿素溶液及其制备方法 |
| WO2022076866A1 (en) * | 2020-10-09 | 2022-04-14 | AWA Technology LLC | Diesel exhaust fluid on demand system, apparatus, and method |
| EP4122584A1 (en) * | 2021-07-23 | 2023-01-25 | Basf Se | Reductant fluid for the after-treatment of exhaust gas |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3122584A (en) * | 1960-11-08 | 1964-02-25 | Allied Chem | Production of ammonium formate |
| GB1111936A (en) | 1966-01-28 | 1968-05-01 | Distillers Co Yeast Ltd | De-icer composition |
| US5057293A (en) * | 1987-02-13 | 1991-10-15 | Fuel Tech, Inc. | Multi-stage process for reducing the concentration of pollutants in an effluent |
| JPH02203923A (ja) * | 1989-01-30 | 1990-08-13 | Hitachi Zosen Corp | 窒素酸化物の接触還元方法 |
| US5342599A (en) * | 1990-09-14 | 1994-08-30 | Cummins Power Generation, Inc. | Surface stabilized sources of isocyanic acid |
| US5116584A (en) * | 1991-04-05 | 1992-05-26 | Energy And Environmental Research Corporation | Methods for enlarging the useful temperature window for NOx reduction in combustion systems |
| JPH08323151A (ja) * | 1995-06-05 | 1996-12-10 | Tokyo Gas Co Ltd | NOx含有排ガスの浄化方法 |
| DE19728343C5 (de) * | 1997-07-03 | 2013-02-21 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur selektiven katalytischen NOx-Reduktion |
| DE10020100A1 (de) * | 2000-04-22 | 2001-10-31 | Dmc2 Degussa Metals Catalysts | Verfahren und Katalysator zur Reduktion von Stickoxiden |
| JP2002001066A (ja) * | 2000-06-20 | 2002-01-08 | Mitsui Chemicals Inc | 脱NOx用還元剤 |
| SE524696C2 (sv) * | 2002-10-30 | 2004-09-21 | Operax Ab | Metod, datorprogramprodukt och arrangemang för att allokera nätresurser inuti ett IP-nät |
| FI116897B (fi) | 2003-02-04 | 2006-03-31 | Kemira Oyj | Ammoniumformiaatin käyttö pelkistysprosessissa |
| FI117891B (fi) * | 2004-08-04 | 2007-04-13 | Kemira Oyj | Pelkistysainekoostumus |
-
2007
- 2007-02-15 FI FI20070134A patent/FI120966B/fi not_active IP Right Cessation
-
2008
- 2008-02-14 RU RU2009133838/05A patent/RU2441692C2/ru not_active IP Right Cessation
- 2008-02-14 JP JP2009549437A patent/JP5276022B2/ja not_active Expired - Fee Related
- 2008-02-14 CN CN2008800051608A patent/CN101622052B/zh not_active Expired - Fee Related
- 2008-02-14 KR KR1020097018390A patent/KR101368989B1/ko not_active Expired - Fee Related
- 2008-02-14 US US12/526,302 patent/US8133460B2/en active Active
- 2008-02-14 EP EP08718515.3A patent/EP2111285B8/en not_active Not-in-force
- 2008-02-14 WO PCT/FI2008/050062 patent/WO2008099063A1/en active Application Filing
- 2008-02-14 CA CA2678079A patent/CA2678079C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| KR101368989B1 (ko) | 2014-02-28 |
| CN101622052B (zh) | 2012-07-04 |
| EP2111285A1 (en) | 2009-10-28 |
| JP2010517767A (ja) | 2010-05-27 |
| FI120966B (fi) | 2010-05-31 |
| CA2678079A1 (en) | 2008-08-21 |
| RU2009133838A (ru) | 2011-03-20 |
| CA2678079C (en) | 2014-03-18 |
| WO2008099063A1 (en) | 2008-08-21 |
| CN101622052A (zh) | 2010-01-06 |
| EP2111285B1 (en) | 2016-03-23 |
| RU2441692C2 (ru) | 2012-02-10 |
| US8133460B2 (en) | 2012-03-13 |
| EP2111285B8 (en) | 2016-06-08 |
| US20100084606A1 (en) | 2010-04-08 |
| FI20070134A0 (fi) | 2007-02-15 |
| FI20070134L (fi) | 2008-08-16 |
| JP5276022B2 (ja) | 2013-08-28 |
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| PA0105 | International application |
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