RU2018136362A - ЦЕОЛИТНЫЕ ПРОМОТИРОВАННЫЕ V/Ti/W КАТАЛИЗАТОРЫ - Google Patents
ЦЕОЛИТНЫЕ ПРОМОТИРОВАННЫЕ V/Ti/W КАТАЛИЗАТОРЫ Download PDFInfo
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- RU2018136362A RU2018136362A RU2018136362A RU2018136362A RU2018136362A RU 2018136362 A RU2018136362 A RU 2018136362A RU 2018136362 A RU2018136362 A RU 2018136362A RU 2018136362 A RU2018136362 A RU 2018136362A RU 2018136362 A RU2018136362 A RU 2018136362A
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- 239000003054 catalyst Substances 0.000 title claims 16
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims 3
- 229910021536 Zeolite Inorganic materials 0.000 title 1
- 239000010457 zeolite Substances 0.000 title 1
- 230000003197 catalytic effect Effects 0.000 claims 16
- 239000000203 mixture Substances 0.000 claims 15
- 239000002808 molecular sieve Substances 0.000 claims 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims 6
- 239000000758 substrate Substances 0.000 claims 6
- 229910052751 metal Inorganic materials 0.000 claims 5
- 239000002184 metal Substances 0.000 claims 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 4
- 230000003647 oxidation Effects 0.000 claims 3
- 238000007254 oxidation reaction Methods 0.000 claims 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical group [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims 2
- 229910000323 aluminium silicate Inorganic materials 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 2
- 238000010531 catalytic reduction reaction Methods 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 239000004408 titanium dioxide Substances 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 229910001935 vanadium oxide Inorganic materials 0.000 claims 2
- 239000006057 Non-nutritive feed additive Substances 0.000 claims 1
- 238000005275 alloying Methods 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 229910000420 cerium oxide Inorganic materials 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 229910052723 transition metal Inorganic materials 0.000 claims 1
- 150000003624 transition metals Chemical class 0.000 claims 1
- 229910001930 tungsten oxide Inorganic materials 0.000 claims 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
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- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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Claims (20)
1. Каталитическая композиция для очистки выхлопного газа, содержащая смесь первого компонента и второго компонента, где первый компонент представляет собой алюмосиликатный или ферросиликатный молекулярно-ситовой компонент, где данное молекулярное сито находится в Н+ форме, а второй компонент представляет собой оксид ванадия, нанесенный на металлоксидный носитель, выбранный из оксида алюминия, диоксида титана, диоксида циркония, оксида церия, диоксида кремния и их комбинаций.
2. Каталитическая композиция по пункту 1, в которой данное молекулярное сито имеет структуру, выбранную из МFI, ВЕА и FЕR.
3. Каталитическая композиция по пункту 2, в которой данное молекулярное сито представляет собой Н+/МFI алюмосиликат.
4. Каталитическая композиция по пункту 1, в которой данное молекулярное сито представляет собой ВЕА ферросиликат.
5. Каталитическая композиция по пункту 1, в которой данный металлоксидный носитель представляет собой диоксид титана.
6. Каталитическая композиция по пункту 1, в которой второй компонент дополнительно содержит оксид вольфрама.
7. Каталитическая композиция по пункту 1, в которой второй компонент дополнительно содержит ванадат железа.
8. Каталитическая композиция по пункту 1, в которой первый компонент и второй компонент присутствуют в смеси в соответственном массовом отношении от приблизительно 5:95 до приблизительно 40:60.
9. Каталитическая композиция по пункту 1, в которой данная смесь содержит от приблизительно 0,5 до приблизительно 5 массовых процентов оксида ванадия в расчете на массу первого и второго компонентов.
10. Пористое каталитическое покрытие типа "washcoat", содержащее катализатор по пункту 1, дополнительно содержащее один или несколько наполнителей, связующих, технологических добавок, воду и легирующие примеси.
11. Каталитическое изделие, содержащее подложку, покрытую катализатором или содержащую внедренный катализатор по пункту 1, в котором данную подложку выбирают из металлической прямо-проточной подложки, керамической прямо-проточной подложки, фильтра с проточными стенками, спеченного металлического фильтра, частичного фильтра и экструдированной сотовой структуры катализатора.
12. Каталитическое изделие по пункту 11, содержащее пористое покрытие, содержащее вторую каталитическую композицию для избирательного восстановления NOx и/или для окисления NН3.
13. Каталитическое изделие по пункту 12, в котором упомянутую вторую каталитическую композицию выбирают из (а) смесей катализаторов по пункту 1, (b) молекулярного сита, промотированного переходным металлом, (с) катализатора с металлом платиновой группы или (d) катализатора на основе ванадия.
14. Каталитическое изделие по пункту 11, в котором данная подложка содержит первый слой, содержащий металл платиновой группы для окисления аммиака, и второй слой, содержащий катализатор по пункту 1, где первый слой расположен прямо на подложке или внутри нее, а второй слой покрывает первый слой.
15. Система для очистки выхлопного газа, содержащая катализатор избирательного каталитического восстановления (SСR) выше по потоку от катализатора проскока аммиака (АSС), в которой, по меньшей мере, один из упомянутых SСR и АSС катализаторов содержит катализатор по пункту 1.
16. Система по пункту 15, дополнительно содержащая дизельный катализатор окисления, содержащий металл платиновой группы, расположенный выше по потоку от упомянутого катализатора избирательного каталитического восстановления.
17. Способ очистки выхлопного газа, включающий этапы, на которых:
а. осуществляют контакт потока выхлопного газа, содержащего NOx и/или NН3, в присутствии катализатора по пункту 1; и
b. превращают, по меньшей мере, часть упомянутого NOx в N2 и/или превращают, по меньшей мере, часть NН3 в, по меньшей мере, одно вещество из N2 и NО2.
18. Способ по пункту 17, в котором упомянутый выхлопной газ имеет отношение NО к NО2 от приблизительно 4:1 до приблизительно 1:3 по объему.
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