JP4941975B2 - 排ガス浄化用触媒の製造方法 - Google Patents
排ガス浄化用触媒の製造方法 Download PDFInfo
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- JP4941975B2 JP4941975B2 JP2007072974A JP2007072974A JP4941975B2 JP 4941975 B2 JP4941975 B2 JP 4941975B2 JP 2007072974 A JP2007072974 A JP 2007072974A JP 2007072974 A JP2007072974 A JP 2007072974A JP 4941975 B2 JP4941975 B2 JP 4941975B2
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- JP
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- Prior art keywords
- catalyst
- alkali metal
- exhaust gas
- clathrate compound
- sodalite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000003054 catalyst Substances 0.000 title claims description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000746 purification Methods 0.000 title claims description 6
- 150000001340 alkali metals Chemical group 0.000 claims description 48
- 229910052783 alkali metal Inorganic materials 0.000 claims description 47
- 229910052665 sodalite Inorganic materials 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 30
- 229910052700 potassium Inorganic materials 0.000 claims description 18
- 239000011591 potassium Substances 0.000 claims description 18
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 17
- 238000010304 firing Methods 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 13
- 239000013618 particulate matter Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000011148 porous material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910021536 Zeolite Inorganic materials 0.000 description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 239000006229 carbon black Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 4
- 229910052878 cordierite Inorganic materials 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 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 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 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 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229940006460 bromide ion Drugs 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 229910017090 AlO 2 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 150000003109 potassium Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
ソーダライトの原料として、ケイ酸ナトリウム(Si源)と、水酸化アルミニウム(Al源)と、水酸化ナトリウム(Na源)と、水を用い、これら原料をSiO2/0.5AlO2/10Na2O/41H2Oの化学組成を提供する割合で混合した。この混合物を、攪拌することなく、100℃で24時間水熱処理し、ろ過・乾燥してソーダライトを得、粉砕した。
先ず、下記表1に示すSi源、Al源およびNa源を用い、これら原料をSiO2/0.5AlO2/10Na2O/41H2Oの化学組成を提供する割合で混合した。この混合物を、攪拌することなく、100℃で24時間水熱処理し、ろ過・乾燥してソーダライトを得、これを下記表1に示す種々の粒子サイズの粉体に調製した。
Claims (5)
- 支持体の表面に、少なくとも1種のアルカリ金属を包接したクラスレート化合物を含む触媒の層を形成する工程、および前記クラスレート化合物を700℃〜900℃の高温で0.5時間以上焼成する工程を含み、前記クラスレート化合物がソーダライトを前記アルカリ金属の水溶性供給源の水溶液とともに80℃で攪拌した後乾燥して形成されるものであることを特徴とする排ガス浄化用触媒の製造方法。
- 前記アルカリ金属が、カリウムであることを特徴とする請求項1に記載の排ガス浄化用触媒の製造方法。
- 前記触媒層が、三元触媒をさらに含むことを特徴とする請求項1または2に記載の排ガス浄化用触媒の製造方法。
- 前記クラスレート化合物をあらかじめ前記高温で焼成した後、該焼成したクラスレート化合物を含む触媒の層を前記支持体の表面に形成することを特徴とする請求項1ないし3のいずれか1項に記載の排ガス浄化用触媒の製造方法。
- 前記触媒の層を前記支持体の表面に形成した後、該触媒の層を前記高温で焼成することを特徴とする請求項1ないし3のいずれか1項に記載の排ガス浄化用触媒の製造方法。
Priority Applications (1)
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---|---|---|---|
JP2007072974A JP4941975B2 (ja) | 2007-03-20 | 2007-03-20 | 排ガス浄化用触媒の製造方法 |
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JP2007072974A JP4941975B2 (ja) | 2007-03-20 | 2007-03-20 | 排ガス浄化用触媒の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008229501A JP2008229501A (ja) | 2008-10-02 |
JP4941975B2 true JP4941975B2 (ja) | 2012-05-30 |
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JP2007072974A Expired - Fee Related JP4941975B2 (ja) | 2007-03-20 | 2007-03-20 | 排ガス浄化用触媒の製造方法 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010184183A (ja) * | 2009-02-11 | 2010-08-26 | Nippon Soken Inc | 排ガス浄化装置 |
JP5624842B2 (ja) * | 2010-10-04 | 2014-11-12 | 株式会社日本自動車部品総合研究所 | 炭素系物質燃焼触媒及び触媒担持体 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3900563B2 (ja) * | 1996-10-23 | 2007-04-04 | 松下電器産業株式会社 | 排ガス浄化触媒及びこれを用いた排ガス浄化フィルタ |
JP3376390B2 (ja) * | 1998-02-13 | 2003-02-10 | 独立行政法人産業技術総合研究所 | ハイドロソーダライト成形体及びその製造方法 |
JP3981708B2 (ja) * | 1999-03-24 | 2007-09-26 | 独立行政法人産業技術総合研究所 | ハイドロソーダライト中のNaを陽イオンで置換した高温酸性ガス固定化剤及びその製造方法 |
JP2001170483A (ja) * | 1999-12-17 | 2001-06-26 | Tanaka Kikinzoku Kogyo Kk | ディーゼル排ガス処理用の燃焼触媒 |
JP2006205025A (ja) * | 2005-01-27 | 2006-08-10 | Mazda Motor Corp | ディーゼルパティキュレートフィルタ及びその製造方法 |
JP4497315B2 (ja) * | 2005-09-20 | 2010-07-07 | 国立大学法人 東京大学 | 排ガス浄化用触媒 |
JP5303131B2 (ja) * | 2006-09-19 | 2013-10-02 | 株式会社日本自動車部品総合研究所 | 炭素系物質燃焼触媒及びその製造方法、触媒担持体及びその製造方法 |
JP5303130B2 (ja) * | 2006-09-19 | 2013-10-02 | 株式会社日本自動車部品総合研究所 | 炭素系物質燃焼触媒及びその製造方法、触媒担持体及びその製造方法 |
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2007
- 2007-03-20 JP JP2007072974A patent/JP4941975B2/ja not_active Expired - Fee Related
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JP2008229501A (ja) | 2008-10-02 |
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