JP2022527819A - 排気ガス浄化用触媒フィルタの触媒スラリー定量コーティング方法 - Google Patents
排気ガス浄化用触媒フィルタの触媒スラリー定量コーティング方法 Download PDFInfo
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- 239000002002 slurry Substances 0.000 title claims abstract description 99
- 239000003054 catalyst Substances 0.000 title claims abstract description 95
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 238000000746 purification Methods 0.000 title claims abstract description 11
- 210000002421 cell wall Anatomy 0.000 claims abstract description 98
- 238000000034 method Methods 0.000 claims abstract description 60
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 11
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001802 infusion Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 35
- 230000003197 catalytic effect Effects 0.000 abstract description 30
- 238000007581 slurry coating method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 abstract description 2
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 description 17
- 210000004027 cell Anatomy 0.000 description 12
- 239000007788 liquid Substances 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 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 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
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- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- 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
- F01N3/24—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 constructional aspects of converting apparatus
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- F01N3/24—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 constructional aspects of converting apparatus
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- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
Description
本発明において、「定量」とは、精密に制御された所定の含有量の触媒スラリーが複数のチャンネルまたはセル(cell)にほぼ完全にコーティングされることを意味する。本願において、「略」完全にコーティングされるというのは、計量された触媒スラリーの1%以内のスラリーのみがフィルタチャンネルにコーティングまたは担持されずに抜け出ることを意味する。本発明の説明において、フィルタ構造体を記述しながら、「断面」とは、別に特定しない限り、排気ガスの流動方向に対する垂直の断面と定義される。一方、「後半部」または「出口側(outlet)」とは、排気ガスがフィルタを通過して外部に排出される側と理解でき、「前半部」または「入口側(inlet)」とは、エンジンから排出された排気ガスが流入する側と定義される。また、「前半部」及び「後半部」は、必ずしもフィルタを長さ方向に二分する用語ではなく、排出ガス及びエンジンの条件に応じて前半部の一部分及び後半部の一部分として理解できる。本発明において、排気ガスは、自動車などの移動式内燃機関又は発電所などの固定式内燃機関から発生する排気ガスを含めて、有害成分を含有する包括的な概念の排気ガスを言及するものである。
Claims (8)
- 排気ガス浄化用触媒フィルタの定量コーティング方法であって、
前記触媒フィルタの内部に入口側及び出口側から順次触媒スラリーを定量注入するステップを含む
ことを特徴とする方法。 - 前記触媒フィルタの内部に入口側又は出口側から触媒スラリーを定量注入するステップは、触媒スラリーを、底が上下動する定量容器に投入するステップと、触媒フィルタの下端及び容器の上端が水平となるように容器の上部を触媒フィルタの下端に移動させるステップと、触媒フィルタの下端及び容器の上端を外部と密閉させるステップと、容器の底を上方移動させるステップと、前記密閉を解除すると同時に真空を印加するステップと、を含む
請求項1に記載の方法。 - 前記出口側から触媒スラリーが定量注入された後、前記触媒フィルタの入口側又は出口側から触媒フィルタの内部に空気圧を注入するステップを含む
請求項1に記載の方法。 - 前記触媒スラリーは、フィルタのセル壁に形成される細孔が通過できる或いは通過できない粘度、粒度、又は粘度及び粒度を有する
請求項1に記載の方法。 - 前記入口側から注入される触媒スラリー、及び前記出口側から注入される触媒スラリーは、同一または異なる
請求項1に記載の方法。 - 空気の注入は、フィルタのセル壁の内部のスラリー分布を調節することができる圧力及び時間で調整される
請求項2に記載の方法。 - 触媒フィルタのセル壁の全部にはセル壁の表面又はセル壁の内部に触媒スラリーがコーティングされるか、或いは、触媒フィルタのセル壁の一部にはセル壁の表面又はセル壁の内部に触媒スラリーがコーティングされ、触媒フィルタの残りセル壁の一部にはセル壁の内部又はセル壁の表面に触媒スラリーがコーティングされる
請求項1に記載の方法。 - 注入される空気圧は2.0bar以内であり、注入時間は1秒以内である
請求項6に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2019-0039880 | 2019-04-05 | ||
KR1020190039880A KR102165633B1 (ko) | 2019-04-05 | 2019-04-05 | 배기가스 정화용 촉매 필터의 촉매 슬러리 정량 코팅 방법 |
PCT/KR2020/095057 WO2020204683A1 (ko) | 2019-04-05 | 2020-03-31 | 배기가스 정화용 촉매 필터의 촉매 슬러리 정량 코팅 방법 |
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US (1) | US20220184594A1 (ja) |
EP (1) | EP3951143B1 (ja) |
JP (1) | JP7331130B2 (ja) |
KR (1) | KR102165633B1 (ja) |
CN (1) | CN113677874B (ja) |
WO (1) | WO2020204683A1 (ja) |
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EP3951143B1 (en) | 2024-03-20 |
CN113677874B (zh) | 2023-08-29 |
EP3951143A4 (en) | 2022-11-23 |
US20220184594A1 (en) | 2022-06-16 |
JP7331130B2 (ja) | 2023-08-22 |
EP3951143A1 (en) | 2022-02-09 |
KR102165633B1 (ko) | 2020-10-14 |
CN113677874A (zh) | 2021-11-19 |
WO2020204683A1 (ko) | 2020-10-08 |
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