JP6772028B2 - 排気ガス浄化装置 - Google Patents
排気ガス浄化装置 Download PDFInfo
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- JP6772028B2 JP6772028B2 JP2016210812A JP2016210812A JP6772028B2 JP 6772028 B2 JP6772028 B2 JP 6772028B2 JP 2016210812 A JP2016210812 A JP 2016210812A JP 2016210812 A JP2016210812 A JP 2016210812A JP 6772028 B2 JP6772028 B2 JP 6772028B2
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- exhaust gas
- purification device
- flow path
- oxidation catalyst
- gas purification
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- 238000000746 purification Methods 0.000 title claims description 29
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 38
- 239000003054 catalyst Substances 0.000 claims description 34
- 230000003647 oxidation Effects 0.000 claims description 34
- 238000007254 oxidation reaction Methods 0.000 claims description 34
- 239000003989 dielectric material Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 63
- 239000013618 particulate matter Substances 0.000 description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 18
- 239000002002 slurry Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 13
- 239000010949 copper Substances 0.000 description 9
- 239000011572 manganese Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052772 Samarium Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910052720 vanadium Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 229910052777 Praseodymium Inorganic materials 0.000 description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 239000012498 ultrapure water Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 238000007754 air knife coating Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000007611 bar coating method Methods 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- -1 organic acid salts Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Landscapes
- Plasma Technology (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
市販のθアルミナに、硝酸鉄(III)水溶液を含浸させ、110℃で一昼夜乾燥後、電気炉にて、大気中、650℃で1時間熱処理(焼成)することにより、Feが担持されたAl2O3(以下、Fe/Al2O3とする。)を得た。FeとAl2O3との総量100質量部に対して、Feの担持量(含有量)は、3質量部であった。
市販のθアルミナと超純水とを混合し、固形分濃度50.0g/LのAl2O3スラリーを得た。
市販のθアルミナに、硝酸銅(II)水溶液を含浸させ、110℃で一昼夜乾燥後、電気炉にて、大気中、650℃で1時間熱処理(焼成)することにより、Cuが担持されたAl2O3(以下、Cu/Al2O3とする。)を得た。CuとAl2O3との総量100質量部に対して、Cuの担持量(含有量)は、3質量部であった。
図1に示す構成のプラズマ反応器を用意し、誘電板の表面に、製造例1で得られたFe/Al2O3スラリーを、エアブラシにより塗布し、80.0℃のヒートガンで90秒乾燥させ、酸化触媒の層を得た。なお、塗布量は、乾燥質量が0.5mg/cm2となるように、調整した。これにより、排気ガス浄化装置を得た。
誘電板にスラリーを塗布しなかった以外は、実施例1と同じ方法により、排気ガス浄化装置を得た。
製造例2で得られたAl2O3スラリーを用いた以外は、実施例1と同じ方法により、排気ガス浄化装置を得た。
製造例3で得られたCu/Al2O3スラリーを用いた以外は、実施例1と同じ方法により、排気ガス浄化装置を得た。
各実施例および各比較例で得られた排ガス浄化装置において、酸化触媒の表面に、浄化対象としてのPMを塗布し、100℃で1時間乾燥させた。
8 誘電板
9 電極
10 ガス流路
17 酸化触媒
Claims (1)
- 排気ガスが通過可能なガス流路と、
前記ガス流路に臨み、互いに間隔を隔てて対向配置される複数の誘電体と、
互いに隣接する前記誘電体間にプラズマを発生させる電極と、
前記ガス流路に排気ガスと接触するように配置される酸化触媒とを備え、
前記酸化触媒が、Feを担持したAl2O3を含有する
ことを特徴とする、排気ガス浄化装置。
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JP2016210812A JP6772028B2 (ja) | 2016-10-27 | 2016-10-27 | 排気ガス浄化装置 |
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JP2016210812A JP6772028B2 (ja) | 2016-10-27 | 2016-10-27 | 排気ガス浄化装置 |
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JP2018071404A JP2018071404A (ja) | 2018-05-10 |
JP6772028B2 true JP6772028B2 (ja) | 2020-10-21 |
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JP2016210812A Active JP6772028B2 (ja) | 2016-10-27 | 2016-10-27 | 排気ガス浄化装置 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7307015B2 (ja) * | 2020-03-24 | 2023-07-11 | ダイハツ工業株式会社 | 排気ガス浄化用プラズマリアクタ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3911951B2 (ja) * | 2000-02-29 | 2007-05-09 | 日産自動車株式会社 | 内燃機関の排気浄化装置および排気浄化方法 |
KR20030075472A (ko) * | 2002-03-19 | 2003-09-26 | 현대자동차주식회사 | 플라즈마 반응기 및 그 제조방법과 플라즈마 반응기가채용된 차량의 배기가스 저감장치 |
JP5000221B2 (ja) * | 2006-07-14 | 2012-08-15 | 本田技研工業株式会社 | 排ガス浄化触媒及び排ガス浄化装置 |
JP2010214249A (ja) * | 2009-03-13 | 2010-09-30 | Daihatsu Motor Co Ltd | 排気ガス浄化装置 |
JP2011012559A (ja) * | 2009-06-30 | 2011-01-20 | Acr Co Ltd | プラズマ放電を用いた排気ガス浄化装置 |
JP5691779B2 (ja) * | 2010-12-07 | 2015-04-01 | 株式会社デンソー | 排ガス浄化装置 |
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