JP6100436B2 - 触媒成分で基材をコーティングする方法 - Google Patents
触媒成分で基材をコーティングする方法 Download PDFInfo
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- JP6100436B2 JP6100436B2 JP2016504757A JP2016504757A JP6100436B2 JP 6100436 B2 JP6100436 B2 JP 6100436B2 JP 2016504757 A JP2016504757 A JP 2016504757A JP 2016504757 A JP2016504757 A JP 2016504757A JP 6100436 B2 JP6100436 B2 JP 6100436B2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
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- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 3
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- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
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Classifications
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
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- 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 ; Methods of operation or control of catalytic converters
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- B01J37/0234—Impregnation and coating simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0493—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases using vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
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- Analytical Chemistry (AREA)
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- Application Of Or Painting With Fluid Materials (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Description
(a)基材を垂直に保持すること、
(b)基材の下端におけるチャネルの開放端を経由して又は通じて、液体を基材に導入すること、及び
(c)基材の下端が液体で部分的に充填された後又は充填されるとき、液体を基材に導入しながら、基材の上端におけるチャネルの開放端に真空を適用すること
を含む。
(a)基材を垂直に保持する手段、
(b)基材の下端におけるチャネルの開放端を経由して又は通じて、液体を基材に導入する手段、
(c)基材の下端が液体で部分的に充填されたとき、真空を引き起こす手段、及び
(d)基材の上端におけるチャネルの開放端に真空を適用する手段
を備える。
(c1)基材への(例えば、液体を押し込む又は注入することによる)液体の導入を、休止又は停止し、次いで、基材の上端におけるチャネルの開放端に真空を適用するステップ、並びに
(c2)真空を適用しながら、基材の下端におけるチャネルの開放端を通じて、液体を基材に(例えば、液体を押し込む又は注入することによって)導入するステップ。
(A)所定の量の液体を送達チャンバに分配すること
(1)基材の下端を受容するためのハウジングに基材を挿入し、次いで
(2)第1の膨張可能なカラーを基材の下端周囲で膨張させることにより、基材を垂直に保持すること、
(B)第2の膨張可能なカラーを基材の上端周囲で膨張させることにより、基材の上端と真空を適用する手段との間で密封係合を形成すること
(3)送達チャンバから液体を、基材の下端におけるチャネルの開放端を通じてピストンで押し込むことにより、液体を基材に導入すること、
(4)所定の量の液体が基材に導入されるまで、送達チャンバから基材の下端におけるチャネルの開放端を通じて液体をピストンで押し込むことにより、液体を基材に導入しながら、基材の下端が液体で部分的に充填されたとき、真空を適用する手段によって、基材の上端におけるチャネルの開放端に真空を適用すること、
(5)第1の膨張可能なカラーを基材の下端周囲で収縮させ、次いで
(6)液体を含有する基材をハウジングから除去し、次いで、好ましくは第2の膨張可能なカラーを収縮させ、次いで、
(7)液体を含有する基材を乾燥及び/又はか焼すること、を含み、
ステップ(A)は、ステップ(3)の後、並びに、ステップ(1)及び/又はステップ(2)の前、後、又は同時に実施され、ステップ(B)は、ステップ(4)の前に実施され、好ましくはステップ(B)はステップ(3)の前に実施される。
基材を保持すること又は基材保持手段に関して本明細書で使用する、「実質的に垂直に」という語は、基材の中心軸が垂直から±5°、好ましくは垂直から±3°、例えば垂直から±0°(即ち、測定誤差内で完全に垂直)である配置を表す。
ここで、本発明を、非限定的な下記の実施例で示す。
ウォッシュコートの調製及び基材
従来型の三元触媒ウォッシュコートが、モノリスフロースルー基材をコーティングするために調製された。ウォッシュコートの粘度は、「Brookfield RVDVII+Extra Pro」粘度計でSC4−27スピンドルを用いて17°Cで測定された。1rpmせん断粘度は約26500cP、50rpmせん断粘度は1500cPであった。
体積測定ピストン式送達システムを用いて、所定の量のウォッシュコートが、後続するモノリスコーティングのためのコーティング用装置(coating rig)に分配された。所定の量のウォッシュコートは所定の体積のウォッシュコートであり、体積測定投与器(doser)を用いて正確にコーティング用装置に分配された。所定の体積は、ウォッシュコートの密度測定値及び所定の質量から算出された。所定の体積は、この実施例でコーティングされる25の基材の各々において、同じであった。
基材にはじめに適用されたコーティング長が測定され、解析は下記の表1に示されている。
ウォッシュコートの調製及び基材
従来型の三元触媒ウォッシュコートが、モノリスフロースルー基材をコーティングするために調製された。ウォッシュコートの粘度は、「Brookfield RVDVII+Extra Pro」粘度計でSC4−27スピンドルを用いて17°Cで測定された。1rpmせん断粘度は約6500cP、50rpmせん断粘度は285cPであった。
後述するように、通常は自動化されたシーケンスを適切なときに休止することにより、所定の体積のウォッシュコートが、手動で(例えば、手で)装置に送達された。使用したコーティング装置が図1に示されている。
第1のウォッシュコートの長さは、基材の軸方向全長108.97mm(4.29”)のうち55.14mmであることが判明した。これは、軸方向長さの50.6%に等しい。X線解析から、コーティングの「平坦度」は、2〜3mmの間であると推定された。
ウォッシュコートの調製及び基材
Cuゼオライトを含む、選択式触媒還元(SCR)用の従来型ウォッシュコート組成物が調製された。ウォールフローフィルタの軸方向長さの60%の長さまで、ウォッシュコート組成物でコーティングすることが所望された。
(本発明による)実施例1のコーティングプロセスを用いて、ウォールフローフィルタがウォッシュコート組成物でコーティングされた。ウォッシュコート組成物のフィルタの下端を通じた導入が完了する(即ち、ピストン面がフィルタに接するとき)0.5秒前に、真空が引き起こされた。
図2は、本発明による方法を用いてウォッシュコート組成物が適用された後の、(例えば、基材の下端を通じて液体が依然として導入されている間、真空が適用された)ウォールフローフィルタを通じたウォッシュコート組成物の分布を示す。図2Aに示すX線画像(図2Bの図示も参照されたい)は、ウォッシュコート組成物がチャネルの長さに沿って均一に分配されたことを立証している。
Claims (15)
- 複数のチャネルを備える基材を、触媒成分を含む液体でコーティングする方法であって、
(a)基材を垂直に保持するステップ、
(b)基材の下端におけるチャネルの開放端を通じてピストンで液体を押し込む又は注入することにより、液体を基材に連続的に導入するステップであって、基材の下端が液体で部分的に充填されるまで、基材の上端におけるチャネルの開放端に真空を適用することなしに、基材の下端におけるチャネルの開放端を通じて液体をピストンで押し込む又は注入することによって、液体を基材に導入することを含むステップ、及び
(c)基材の下端が液体で部分的に充填された後、ステップ(b)において基材に液体を導入しながら、基材の上端におけるチャネルの開放端に真空を適用するステップ
を含む、方法。 - ステップ(b)は、基材の下端におけるチャネルの開放端を通じて、所定の量の液体を基材に導入することを含む、請求項1に記載の方法。
- ステップ(b)は、基材の下端におけるチャネルの開放端を通じて、液体を基材に往復式ピストンで押し込む又は注入することを含み、往復式ピストンは、(i)ピストンが引き込まれた第1の位置から、(ii)ピストンが基材の下端に接した第2の位置まで、移動しながら液体を基材に押し込む又は注入する、請求項1又は2に記載の方法。
- 往復式ピストンはハウジング内の往復式ピストンであり、ハウジング内の引き込まれたピストンは、第1の位置において、可変容量を有する送達チャンバを画定する、請求項3に記載の方法。
- ステップ(b)は、ピストンが第1の位置にあるとき、所定の量の液体を送達チャンバに分配すること(b1)を含む、請求項4に記載の方法。
- 往復式ピストンが第1の位置から第2の位置まで移動すると、送達チャンバ内の液体のうちの実質的にすべてが基材に導入される、請求項4又は5に記載の方法。
- ピストンは、ポリマーを含むピストン面を有し、ポリマーはポリエステルである、請求項1から6のいずれか一項に記載の方法。
- ステップ(a)は、膨張可能なカラーを基材の下端周囲で膨張させることにより、基材を垂直に保持することを含む、請求項1から7のいずれか一項に記載の方法。
- ステップ(c)は、基材の下端が液体で部分的に充填された後、液体を導入しながら、真空を適用するための手段で真空を適用することを含む、請求項1から8のいずれか一項に記載の方法。
- (d)膨張可能なカラーを基材の上端周囲で膨張させることにより、基材の上端と真空を適用する手段との間で密封係合を形成することを更に含み、
ステップ(d)は、ステップ(c)又はステップ(b)の前に起こる、請求項9に記載の方法。 - 各膨張可能なカラーは正方形又は長方形の断面を有する、請求項8又は10に記載の方法。
- 液体を含有する基材を乾燥及び/又はか焼するステップ(g)を更に含む、請求項1から11のいずれか一項に記載の方法。
- 液体を含有する基材を反転させ(h)、次いで、触媒成分を含む第2の液体を用いて、ステップ(a)から(c)、ステップ(a)から(d)、又はステップ(a)から(g)を反復することを更に含む、請求項12に記載の方法。
- 請求項1に記載の方法のための装置であって、
(a)基材を垂直に保持する手段、
(b)基材の下端におけるチャネルの開放端を通じて、液体を押し込む又は注入することによって基材に連続的に導入する手段であって、ハウジング内を往復動するピストンを備える手段、
(c)基材の下端が液体で部分的に充填されたとき、真空を引き起こす手段であって、
(i)部分的充填の期間を測定するタイマー;及び/又は
(ii)ピストンが、基材の下端が液体で部分的に充填されるとき可変容量を画定
する中間位置にあるとき、真空を引き起こす体積測定手段;
を備える手段、及び
(d)基材の上端におけるチャネルの開放端に、真空を適用する手段
を備える、装置。 - 前記真空を引き起こす手段が、基材の上端におけるチャネルの開放端に真空を適用する 手段に電気的に連結される、請求項14に記載の装置。
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2013
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2014
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- 2014-06-03 RU RU2018129858A patent/RU2720250C2/ru active
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- 2014-06-03 PL PL14730956T patent/PL3003582T3/pl unknown
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- 2014-06-03 DK DK14730956.1T patent/DK3003582T3/en active
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US20140356530A1 (en) | 2014-12-04 |
GB2514928B (en) | 2015-06-10 |
GB201311615D0 (en) | 2013-08-14 |
RU2018129858A (ru) | 2019-03-20 |
WO2014195685A1 (en) | 2014-12-11 |
RU2720250C2 (ru) | 2020-04-28 |
PL3003582T3 (pl) | 2018-03-30 |
HUE035137T2 (en) | 2018-05-02 |
GB2514928A (en) | 2014-12-10 |
KR20150085113A (ko) | 2015-07-22 |
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