JP7659278B2 - 窒素酸化物除去用触媒及びその製造方法 - Google Patents
窒素酸化物除去用触媒及びその製造方法 Download PDFInfo
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- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/16—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- B01J29/00—Catalysts comprising molecular sieves
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- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
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- 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
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
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- B01D2251/00—Reactants
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- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
- B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
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- B01J2229/30—After treatment, characterised by the means used
- B01J2229/32—Reaction with silicon compounds, e.g. TEOS, siliconfluoride
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Description
本発明は、前記窒素酸化物除去用触媒の製造方法を提供する。
本発明の他の目的は以下の詳細な説明及び添付図面から明確になるであろう。
前記金属触媒はバナジウム(V)を含み、前記ゼオライトはYゼオライトを含む。
前記炭素層は、有機シラン化合物を前記ゼオライトの表面にある水酸基と反応させて形成される。前記有機シラン化合物はオクタデシルトリクロロシランを含む。
本発明の実施例による窒素酸化物除去用触媒の製造方法は、ゼオライト表面に炭素層を形成するステップ及び前記炭素層が形成されたゼオライトを金属触媒と混合した後グラインディングするステップを含む。
前記金属触媒はバナジウム(V)を含み、前記ゼオライトはYゼオライトを含む。
前記炭素層を形成するステップは、前記ゼオライトに有機シラン化合物を提供するステップを含み、前記有機シラン化合物は、前記ゼオライトの表面にある水酸基と反応する。前記有機シラン化合物はオクタデシルトリクロロシランを含む。
本発明の実施例に係る窒素酸化物除去用触媒と比較例の触媒は、以下の方法で製造した。
NH3-SCR反応のための様々な触媒の触媒活性は、0.25インチ管状石英反応器で測定した。全ての触媒をペレット化し、圧力降下を防止し、データ再現性を確保するために180-250μmに篩い分けした。シミュレーションされた反応供給物は、N2(他の反応供給物を除く残り)、NO(500ppm)、NH3(600ppm)、O2(10%)、CO2(5%)、H2O(10%、脱イオン化)、およびSO2(30または100ppm)を含んだ。反応供給物のGHSV(gas hourly space velocity)は150,000mL/h・gcatであった。GHSVは、機械的に混合されたハイブリッド触媒(0.08gVWTi+Y-ゼオライト0.04g)の場合、VWTi触媒(0.08g)の重量に基づいて設定された。総流速は200mL/minに固定した。NOx濃度はNOx化学発光分析器を用いて記録し、NOx変換率は以下の式を用いて計算した。
Claims (1)
- ゼオライト表面に炭素層を形成するステップ、及び
前記炭素層が形成されたゼオライトを金属触媒と混合した後グラインディングするステップを含み、
前記金属触媒はバナジウム(V)を含み、
前記ゼオライトはYゼオライトを含み、
前記炭素層を形成するステップは、前記ゼオライトに有機シラン化合物を提供するステップを含み、
前記有機シラン化合物は、前記ゼオライトの表面にある水酸基と反応し、
前記有機シラン化合物はオクタデシルトリクロロシランを含むことを特徴とする窒素酸化物除去用触媒の製造方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2022-0148259 | 2022-11-08 | ||
| KR1020220148259A KR102891021B1 (ko) | 2022-11-08 | 2022-11-08 | 질소산화물 제거용 촉매 및 그 제조 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2024068616A JP2024068616A (ja) | 2024-05-20 |
| JP7659278B2 true JP7659278B2 (ja) | 2025-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2023102919A Active JP7659278B2 (ja) | 2022-11-08 | 2023-06-23 | 窒素酸化物除去用触媒及びその製造方法 |
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| Country | Link |
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| US (1) | US20240149218A1 (ja) |
| JP (1) | JP7659278B2 (ja) |
| KR (1) | KR102891021B1 (ja) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013523424A (ja) | 2010-03-25 | 2013-06-17 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | 固体吸着剤を保護する方法、および保護された固体吸着剤 |
| JP2022531806A (ja) | 2019-09-30 | 2022-07-11 | ポスコ | 硫黄に対する耐久性に優れたscr触媒 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2936416B2 (ja) * | 1989-10-23 | 1999-08-23 | トヨタ自動車株式会社 | 排気ガスの浄化方法 |
| JPH07106300B2 (ja) * | 1989-12-08 | 1995-11-15 | 財団法人産業創造研究所 | 燃焼排ガス中の窒素酸化物除去法 |
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2022
- 2022-11-08 KR KR1020220148259A patent/KR102891021B1/ko active Active
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- 2023-06-23 JP JP2023102919A patent/JP7659278B2/ja active Active
- 2023-10-19 US US18/490,210 patent/US20240149218A1/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013523424A (ja) | 2010-03-25 | 2013-06-17 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | 固体吸着剤を保護する方法、および保護された固体吸着剤 |
| JP2022531806A (ja) | 2019-09-30 | 2022-07-11 | ポスコ | 硫黄に対する耐久性に優れたscr触媒 |
Non-Patent Citations (1)
| Title |
|---|
| Inhak SONG et al.,Simple physical mixing of zeolite prevents sulfur deactivation of vanadia catalysts for NOx removal,Nature Communications,Vol. 12,No. 1,2021年02月10日,p.1-9,DOI: 10.1038/s41467-021-21228-x |
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| Publication number | Publication date |
|---|---|
| JP2024068616A (ja) | 2024-05-20 |
| KR20240066908A (ko) | 2024-05-16 |
| US20240149218A1 (en) | 2024-05-09 |
| KR102891021B1 (ko) | 2025-12-01 |
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