CN113117742A - 一种低温脱硝成型催化剂及其制备方法 - Google Patents
一种低温脱硝成型催化剂及其制备方法 Download PDFInfo
- Publication number
- CN113117742A CN113117742A CN201911418475.1A CN201911418475A CN113117742A CN 113117742 A CN113117742 A CN 113117742A CN 201911418475 A CN201911418475 A CN 201911418475A CN 113117742 A CN113117742 A CN 113117742A
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- Prior art keywords
- drying
- molecular sieve
- titanium
- catalyst
- roasting
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- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000001035 drying Methods 0.000 claims abstract description 58
- 239000002808 molecular sieve Substances 0.000 claims abstract description 54
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 54
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 42
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000243 solution Substances 0.000 claims abstract description 26
- 239000010936 titanium Substances 0.000 claims abstract description 26
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 238000002791 soaking Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 13
- 230000032683 aging Effects 0.000 claims abstract description 10
- 239000011259 mixed solution Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 31
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical class [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 claims description 24
- 239000008367 deionised water Substances 0.000 claims description 23
- 229910021641 deionized water Inorganic materials 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 19
- 239000003365 glass fiber Substances 0.000 claims description 17
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 14
- 229920002401 polyacrylamide Polymers 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 238000007598 dipping method Methods 0.000 claims description 9
- 238000005470 impregnation Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000002243 precursor Substances 0.000 claims description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 7
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 7
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 229910001868 water Inorganic materials 0.000 claims description 5
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 238000004898 kneading Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 25
- 239000000395 magnesium oxide Substances 0.000 description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 9
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- YQMWDQQWGKVOSQ-UHFFFAOYSA-N trinitrooxystannyl nitrate Chemical compound [Sn+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YQMWDQQWGKVOSQ-UHFFFAOYSA-N 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910052782 aluminium Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical group [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- -1 strontium nitrate modified titanium Chemical class 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/89—Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- B01J35/56—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/20—After treatment, characterised by the effect to be obtained to introduce other elements in the catalyst composition comprising the molecular sieve, but not specially in or on the molecular sieve itself
Abstract
Description
Claims (18)
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CN113117742A true CN113117742A (zh) | 2021-07-16 |
CN113117742B CN113117742B (zh) | 2024-02-06 |
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CN1356162A (zh) * | 2001-09-14 | 2002-07-03 | 清华大学 | 一种用于可逆吸附氮氧化物的钛基复合氧化物的制备方法 |
CN101992116A (zh) * | 2009-08-10 | 2011-03-30 | 北京石油化工学院 | MnMe/分子筛系列的催化剂及制备和用途 |
CN103769137A (zh) * | 2012-10-25 | 2014-05-07 | 中国石油化工股份有限公司 | 一种高强度烟气脱硝催化剂的制备方法 |
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CN107308969A (zh) * | 2017-06-09 | 2017-11-03 | 中国石油天然气股份有限公司 | 一种降低so2氧化率蜂窝式无钒脱硝催化剂及其制备方法 |
CN108355664A (zh) * | 2018-03-06 | 2018-08-03 | 常州大学 | 一种凹凸棒石负载TiO2-SrTiO3异质结SCR低温脱硝催化剂 |
CN109513346A (zh) * | 2018-12-07 | 2019-03-26 | 山东洲蓝环保科技有限公司 | 烧结烟气低温脱硫脱硝方法 |
CN109876856A (zh) * | 2017-12-06 | 2019-06-14 | 中国石油化工股份有限公司 | 一种低温烟气脱硝催化剂及其制备方法 |
CN109876855A (zh) * | 2017-12-06 | 2019-06-14 | 中国石油化工股份有限公司 | 一种高强度烟气脱硝催化剂及其制备方法 |
CN109999891A (zh) * | 2019-05-08 | 2019-07-12 | 四川大学 | 一种低温scr脱硝催化剂及其制备方法 |
-
2019
- 2019-12-31 CN CN201911418475.1A patent/CN113117742B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1356162A (zh) * | 2001-09-14 | 2002-07-03 | 清华大学 | 一种用于可逆吸附氮氧化物的钛基复合氧化物的制备方法 |
CN101992116A (zh) * | 2009-08-10 | 2011-03-30 | 北京石油化工学院 | MnMe/分子筛系列的催化剂及制备和用途 |
CN103769137A (zh) * | 2012-10-25 | 2014-05-07 | 中国石油化工股份有限公司 | 一种高强度烟气脱硝催化剂的制备方法 |
CN104971771A (zh) * | 2015-07-10 | 2015-10-14 | 山东海润环保科技有限公司 | 一种低温柴油scr脱硝催化剂及其制备方法 |
CN107308969A (zh) * | 2017-06-09 | 2017-11-03 | 中国石油天然气股份有限公司 | 一种降低so2氧化率蜂窝式无钒脱硝催化剂及其制备方法 |
CN109876856A (zh) * | 2017-12-06 | 2019-06-14 | 中国石油化工股份有限公司 | 一种低温烟气脱硝催化剂及其制备方法 |
CN109876855A (zh) * | 2017-12-06 | 2019-06-14 | 中国石油化工股份有限公司 | 一种高强度烟气脱硝催化剂及其制备方法 |
CN108355664A (zh) * | 2018-03-06 | 2018-08-03 | 常州大学 | 一种凹凸棒石负载TiO2-SrTiO3异质结SCR低温脱硝催化剂 |
CN109513346A (zh) * | 2018-12-07 | 2019-03-26 | 山东洲蓝环保科技有限公司 | 烧结烟气低温脱硫脱硝方法 |
CN109999891A (zh) * | 2019-05-08 | 2019-07-12 | 四川大学 | 一种低温scr脱硝催化剂及其制备方法 |
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