JP7129976B2 - 可溶塩基性金属炭酸塩を含む排気ガス汚染防止流体、その調製プロセス、および内燃機関におけるその使用 - Google Patents
可溶塩基性金属炭酸塩を含む排気ガス汚染防止流体、その調製プロセス、および内燃機関におけるその使用 Download PDFInfo
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- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
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Description
(NH2)2CO(尿素)→NH3(アンモニア)+HNCO(イソシアン酸) (1)
HNCO+H2O→NH3+CO2 (2)
代替として、アンモニアは、SCR触媒の上流側で排気配管に気体状態で直接噴射することができる。
アズライトと呼ばれ、シュツルンツ分類では05.BA.05群に分類される、化学式Cu3(CO3)2(OH)2の塩基性銅炭酸塩、
マラカイトと呼ばれ、シュツルンツ分類では05.BA.10群に分類される、化学式Cu2(CO3)(OH)2の塩基性銅炭酸塩、
ヌラギナイトと呼ばれ、シュツルンツ分類では05.BA.10群に分類される、化学式Ni2(CO3)(OH)2の塩基性ニッケル炭酸塩、および
グロウコスファエライトと呼ばれ、シュツルンツ分類では05.BA.10群に分類される、化学式(Cu,Ni)2(CO3)(OH)2の塩基性銅・ニッケル炭酸塩
で構成されたリストから選択される。
以下の実施例では、非制限的な例によって、本発明による汚染除去流体の調製(実施例1~3)、およびディーゼルエンジンの排気ガスの汚染除去(実施例4)に関する本発明による流体の例のいくつかの性能を示す。
この例では、流体は以下のように調整される。棒磁石を含む250cm3ガラス瓶に100gのAdBlue(登録商標)を導入し、化学式Cu2(CO3)(OH)2の0.061gの塩基性銅炭酸塩(マラカイト)を攪拌しながら添加する。このマラカイトの量は、350ppmのイオン形態の銅の溶液の最終濃度に相当する。環境温度で15分攪拌した後、溶液を調製した直後および環境温度で貯蔵してから1週間後に溶液の様相を評価する。
この実施例では、流体を以下のように調製する。棒磁石を含む2リットルの三角フラスコに1000gのAdBlue(登録商標)を導入し、化学式Cu2(CO3)(OH)2の0.87gの塩基性銅炭酸塩(マラカイト)を攪拌しながら添加する。この量のマラカイトは、500ppmのイオン形態の銅の溶液の最終濃度に相当する。環境温度で2時間攪拌した後、溶液を調製した直後および環境温度で貯蔵してから1週間後に溶液の様相を評価する。
この実施例では、調製モードは実施例1と同様であるが、AdBlue(登録商標)溶液に添加される塩基性銅炭酸塩Cu2(CO3)(OH)2の量は0.0139gである。この量のマラカイトは、80ppmのイオン形態の銅の溶液の最終濃度に相当する。
この実施例は、熱機関、より厳密にはディーゼルエンジンの排気ガスの汚染除去に適用される。このディーゼルエンジンは、酸化触媒と、その後段に配置されたミキサおよび選択触媒還元フィルタSCRFとを含む排気配管を備えている。この構成は、酸化触媒22と、その後段に配置されたミキサ(参照番号なし)およびSCRFフィルタ20とを示す図1に示す構成に類似する。
Claims (15)
- 内燃機関からの、排気ガスの汚染除去用の流体であって、排気ガスに含有される窒素酸化物NOxを除去する少なくとも1つの還元剤または還元剤前駆体の均質水溶液から成り、前記水溶液は、微粒子フィルタ内の排気ガス粒子の酸化を触媒する金属添加剤を含み、前記金属添加剤は、前記水溶液に溶解可能な塩基性金属炭酸塩であり、
前記塩基性金属炭酸塩は、化学式Cu3(CO3)2(OH)2の塩基性銅炭酸塩、化学式Cu2(CO3)(OH)2の塩基性銅炭酸塩、化学式Ni2(CO3)(OH)2の塩基性ニッケル炭酸塩、化学式(Cu,Ni)2(CO3)(OH)2の塩基性銅・ニッケル炭酸塩から選択される、流体。 - 前記少なくとも1つの還元剤または還元剤前駆体は、尿素、ホルムアミド、アンモニウム塩、グアニジン塩で構成されたリストから選択される、請求項1に記載の流体。
- 前記還元剤または還元剤前駆体は尿素である、請求項1または2に記載の流体。
- 前記少なくとも1つの還元剤または還元剤前駆体は、純水による溶液中の尿素である、請求項3に記載の流体。
- 前記少なくとも1つの還元剤または還元剤前駆体は、純水による溶液中の32.5±0.7質量%の尿素であり、ISO22241-1規格の仕様を満たす、請求項4に記載の流体。
- 前記還元剤または還元剤前駆体の均質水溶液は、32.5質量%尿素水溶液から調製される、請求項5に記載の流体。
- 前記塩基性金属炭酸塩は、前記化学式Cu2(CO3)(OH)2の前記塩基性銅炭酸塩である、請求項1に記載の流体。
- 前記金属添加剤の金属イオンを錯化し、リガンド付加し、キレートする追加の薬剤を含まない、請求項1から7のいずれか一項に記載の流体。
- 請求項1から8のいずれか一項に記載の排気ガス汚染除去流体を調製する方法であって、少なくとも1つの還元剤または還元剤前駆体化合物の水溶液に溶解可能な塩基性金属炭酸塩は、均質溶液を形成するように前記水溶液に添加される調製方法。
- 前記塩基性金属炭酸塩の前記水溶液への添加は、攪拌しながら行われ、炭酸塩添加ステップの後に追加の攪拌ステップを含む、請求項9に記載の調製方法。
- 微粒子と窒素酸化物NOxとを含む排気ガスを汚染除去するための、内燃機関における請求項1から8のいずれか一項に記載の流体の使用であって、前記流体は、粒子濾過と窒素酸化物NOxの選択触媒還元とを含む排気ガス処理システムの上流側で前記排気ガス中に噴射され、噴射は、前記内燃機関の動作条件に応じて、実施される、流体の使用。
- 噴射は、事前に判定された排気ガス温度がしきい値を超え、前記窒素酸化物NOxの処理を開始することが可能になった場合に実施される、請求項11に記載の流体の使用。
- 粒子濾過および窒素酸化物NOxの選択触媒還元は、単一の装置、触媒式SCRFフィルタにおいて実施される、請求項11および12のいずれか一項に記載の流体の使用。
- 粒子濾過は、窒素酸化物NOxの選択触媒還元用の触媒装置の上流側の微粒子フィルタPAFにおいて行われ、前記流体の前記噴射は前記微粒子フィルタPAFの上流側で実施される、請求項11および12のいずれか一項に記載の流体の使用。
- 窒素酸化物NOxの選択触媒還元は、微粒子フィルタPAFにおける前記粒子濾過の上流側のSCR触媒装置において実施され、前記流体の前記噴射は、前記SCR触媒装置の上流側で実施される、請求項11および12のいずれか一項に記載の流体の使用。
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FR1662057A FR3059566B1 (fr) | 2016-12-07 | 2016-12-07 | Fluide de depollution de gaz d'echappement comportant un carbonate metallique basique soluble, son procede de preparation et son utilisation pour les moteurs a combustion interne |
PCT/EP2017/077851 WO2018103955A1 (fr) | 2016-12-07 | 2017-10-31 | Fluide de depollution de gaz d'echappement comportant un carbonate metallique basique soluble, son procede de preparation et son utilisation pour les moteurs a combustion interne |
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FR3108527B1 (fr) * | 2020-03-30 | 2022-09-09 | Total Marketing Services | Utilisation d’une composition comprenant un agent réducteur et un composé métallique pour prévenir les dépôts dans les lignes d’échappement comprenant un catalyseur SCR |
FR3108531B1 (fr) * | 2020-03-30 | 2023-01-06 | Total Marketing Services | Fluide homogène à base de cuivre pour la dépollution des moteurs thermiques |
FR3108529A1 (fr) * | 2020-03-30 | 2021-10-01 | Total Marketing Services | Utilisation d’une composition comprenant un agent réducteur, au moins une paraffine et un composé métallique pour prévenir les dépôts dans les lignes d’échappement comprenant un catalyseur SCR |
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KR20090095653A (ko) * | 2006-12-21 | 2009-09-09 | 존슨 맛쎄이 퍼블릭 리미티드 컴파니 | 희박 연소 내연 기관 및 이를 위한 배기 시스템을 포함하는 장치 |
EP3103979B1 (de) * | 2010-09-13 | 2018-01-03 | Umicore AG & Co. KG | Katalysator zur entfernung von stickoxiden aus dem abgas von dieselmotoren |
KR101509689B1 (ko) | 2011-07-01 | 2015-04-08 | 현대자동차 주식회사 | 배기 가스 정화 장치 및 이를 포함하는 배기 장치 |
CN105396614A (zh) * | 2015-10-28 | 2016-03-16 | 天津大学 | 氨选择性催化还原去除氮氧化物的催化剂及制备和应用 |
FR3043570B1 (fr) | 2015-11-13 | 2020-08-07 | Ifp Energies Now | Fluide pour la depollution des moteurs thermiques et modes de preparation desdits fluides par emulsification |
FR3043568B1 (fr) | 2015-11-13 | 2021-01-29 | Ifp Energies Now | Fluide pour la depollution de moteurs thermiques utilisant des suspensions stables de particules colloidales metalliques et modes de preparation dudit fluide |
FR3043569A1 (fr) | 2015-11-13 | 2017-05-19 | Ifp Energies Now | Fluide pour la depollution des moteurs thermiques et modes de preparation desdits fluides par realisation d'une solution homogene |
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2016
- 2016-12-07 FR FR1662057A patent/FR3059566B1/fr active Active
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2017
- 2017-10-31 KR KR1020197019160A patent/KR102502788B1/ko active IP Right Grant
- 2017-10-31 WO PCT/EP2017/077851 patent/WO2018103955A1/fr unknown
- 2017-10-31 US US16/467,197 patent/US10874984B2/en active Active
- 2017-10-31 JP JP2019530729A patent/JP7129976B2/ja active Active
- 2017-10-31 CN CN201780075926.9A patent/CN110072608B/zh active Active
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US3449063A (en) | 1966-05-13 | 1969-06-10 | Ethyl Corp | Method of controlling exhaust emission |
US20030226312A1 (en) | 2002-06-07 | 2003-12-11 | Roos Joseph W. | Aqueous additives in hydrocarbonaceous fuel combustion systems |
US20130334466A1 (en) | 2009-04-22 | 2013-12-19 | Babcock & Wilcox Power Generation Group, Inc. | System and method for reducing halogen levels necessary for mercury control, increasing the service life and/or catalytic activity of an scr catalyst and/or control of multiple emissions |
WO2016091657A1 (fr) | 2014-12-11 | 2016-06-16 | IFP Energies Nouvelles | Produit pour la dépollution des gaz d'échappement, notamment de moteur à combustion interne, et procédé de dépollution des gaz d'échappement utilisant ce produit |
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Publication number | Publication date |
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WO2018103955A1 (fr) | 2018-06-14 |
EP3551319A1 (fr) | 2019-10-16 |
KR20190090398A (ko) | 2019-08-01 |
KR102502788B1 (ko) | 2023-02-23 |
FR3059566A1 (fr) | 2018-06-08 |
US10874984B2 (en) | 2020-12-29 |
EP3551319B1 (fr) | 2023-04-19 |
US20200078733A1 (en) | 2020-03-12 |
FR3059566B1 (fr) | 2022-04-22 |
CN110072608B (zh) | 2022-07-08 |
JP2020513310A (ja) | 2020-05-14 |
CN110072608A (zh) | 2019-07-30 |
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