JP4511920B2 - 脱硝触媒の製造方法 - Google Patents
脱硝触媒の製造方法 Download PDFInfo
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- JP4511920B2 JP4511920B2 JP2004370518A JP2004370518A JP4511920B2 JP 4511920 B2 JP4511920 B2 JP 4511920B2 JP 2004370518 A JP2004370518 A JP 2004370518A JP 2004370518 A JP2004370518 A JP 2004370518A JP 4511920 B2 JP4511920 B2 JP 4511920B2
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- titanium oxide
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- 239000003054 catalyst Substances 0.000 title claims description 76
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 32
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 30
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 239000010419 fine particle Substances 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 229910021542 Vanadium(IV) oxide Inorganic materials 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 claims description 7
- 239000012784 inorganic fiber Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002612 dispersion medium Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 23
- 230000010718 Oxidation Activity Effects 0.000 description 13
- 238000005470 impregnation Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- 229910052720 vanadium Inorganic materials 0.000 description 8
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000004480 active ingredient Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- 229910001935 vanadium oxide Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- XAYGUHUYDMLJJV-UHFFFAOYSA-Z decaazanium;dioxido(dioxo)tungsten;hydron;trioxotungsten Chemical compound [H+].[H+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O XAYGUHUYDMLJJV-UHFFFAOYSA-Z 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011964 heteropoly acid Substances 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 150000003682 vanadium compounds Chemical class 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
(1)第一成分として酸化チタン、第二成分としてタングステン(W)またはモリブデン(Mo)の可溶性の塩類もしくは酸化物、第三成分として二酸化バナジウム(VO2)の微粒子を用い、これらと水とを混練して得られる触媒ペーストを、金属または無機繊維の網状物に担持するか、またはハニカム状に押し出し成形することを特徴とする窒素酸化物除去用触媒の製造法。
(2)酸化チタン、または酸化チタンとタングステン(W)もしくはモリブデン(Mo)の酸化物からなる板状触媒担体に、二酸化バナジウム(VO2)の微粒子を含有する水溶液を含浸後、乾燥することを特徴とする窒素酸化物除去用触媒の製造法。
(3)第一成分として酸化チタン、第二成分としてタングステン(W)またはモリブデン(Mo)の可溶性の塩類もしくは酸化物、第三成分として二酸化バナジウム(VO2)の微粒子を用い、これらと水を混合して得られる触媒スラリを、 板状担体またはハニカム担体に含浸担持させることを特徴とする窒素酸化物除去用触媒の製造法。
(4)第三成分が、VO2を分散媒に分散させたゾル状物またはVO2のゲル化物であることを特徴とする(1)ないし(3)のいずれかに記載の方法。
(5)第三成分が、VO2ゾルと三酸化タングステン(WO3)ゾルの混合物である(1)ないし(3)のいずれかに記載の方法。
(1)脱硝活性を飛躍的に向上せしめるためには、酸化チタン上に活性成分のバナジウム酸化物を高分散させて、ガスとの接触を高めることが有効な手段になる。
(2)バナジウム酸化物が酸化チタンと強く相互作用して酸化チタン上に強吸着すると、バナジウムの酸化力が高まるため、SO2酸化活性が高くなる。
[実施例1]
[実施例2]
[実施例3]
[実施例4]
[比較例1]
[比較例2]
[比較例3]
Claims (5)
- 第一成分として酸化チタン、第二成分としてタングステン(W)またはモリブデン(Mo)の可溶性の塩類もしくは酸化物、第三成分として二酸化バナジウム(VO2)の微粒子を用い、これらと水とを混練して得られる触媒ペーストを、金属または無機繊維の網状物に担持するか、またはハニカム状に押し出し成形することを特徴とする窒素酸化物除去用触媒の製造法。
- 酸化チタン、または酸化チタンとタングステン(W)もしくはモリブデン(Mo)の酸化物からなる板状触媒担体に、二酸化バナジウム(VO2)の微粒子を含有する水溶液を含浸後、乾燥することを特徴とする窒素酸化物除去用触媒の製造法。
- 第一成分として酸化チタン、第二成分としてタングステン(W)またはモリブデン(Mo)の可溶性の塩類もしくは酸化物、第三成分として二酸化バナジウム(VO2)の微粒子を用い、これらと水を混合して得られる触媒スラリを、 板状担体またはハニカム担体に含浸担持させることを特徴とする窒素酸化物除去用触媒の製造法。
- 第三成分が、VO2を分散媒に分散させたゾル状物またはVO2のゲル化物であることを特徴とする請求項1ないし3のいずれかに記載の方法。
- 第三成分が、VO2ゾルと三酸化タングステン(WO3)ゾルの混合物である請求項1ないし3のいずれかに記載の方法。
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JP2004370518A JP4511920B2 (ja) | 2004-12-22 | 2004-12-22 | 脱硝触媒の製造方法 |
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JP2006175341A JP2006175341A (ja) | 2006-07-06 |
JP4511920B2 true JP4511920B2 (ja) | 2010-07-28 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011140005A (ja) * | 2010-01-08 | 2011-07-21 | Hitachi Zosen Corp | 脱硝触媒の調製方法およびその方法により調製された触媒 |
JP5638982B2 (ja) * | 2011-03-04 | 2014-12-10 | バブコック日立株式会社 | 脱硝装置 |
WO2015126025A1 (ko) * | 2014-02-18 | 2015-08-27 | 한국생산기술연구원 | 바나듐 및 텅스텐 담지 탄소재료가 포함된 scr 촉매 및 그 제조방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0342045A (ja) * | 1989-07-10 | 1991-02-22 | Babcock Hitachi Kk | 窒素酸化物除去用触媒およびその製造方法 |
JPH04265159A (ja) * | 1991-02-21 | 1992-09-21 | Babcock Hitachi Kk | 窒素酸化物除去用板状触媒の製造方法 |
JPH07241476A (ja) * | 1994-03-07 | 1995-09-19 | Babcock Hitachi Kk | ハニカム触媒の製造方法 |
JP2002126536A (ja) * | 2000-10-23 | 2002-05-08 | Babcock Hitachi Kk | 耐酸化性耐腐食性金属基板、脱硝用触媒および排ガスの浄化方法 |
JP2003024799A (ja) * | 2001-07-11 | 2003-01-28 | Babcock Hitachi Kk | 窒素酸化物除去用触媒の製造法 |
-
2004
- 2004-12-22 JP JP2004370518A patent/JP4511920B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0342045A (ja) * | 1989-07-10 | 1991-02-22 | Babcock Hitachi Kk | 窒素酸化物除去用触媒およびその製造方法 |
JPH04265159A (ja) * | 1991-02-21 | 1992-09-21 | Babcock Hitachi Kk | 窒素酸化物除去用板状触媒の製造方法 |
JPH07241476A (ja) * | 1994-03-07 | 1995-09-19 | Babcock Hitachi Kk | ハニカム触媒の製造方法 |
JP2002126536A (ja) * | 2000-10-23 | 2002-05-08 | Babcock Hitachi Kk | 耐酸化性耐腐食性金属基板、脱硝用触媒および排ガスの浄化方法 |
JP2003024799A (ja) * | 2001-07-11 | 2003-01-28 | Babcock Hitachi Kk | 窒素酸化物除去用触媒の製造法 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |