RU2018143819A - Катализатор для обработки выхлопных газов - Google Patents

Катализатор для обработки выхлопных газов Download PDF

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RU2018143819A
RU2018143819A RU2018143819A RU2018143819A RU2018143819A RU 2018143819 A RU2018143819 A RU 2018143819A RU 2018143819 A RU2018143819 A RU 2018143819A RU 2018143819 A RU2018143819 A RU 2018143819A RU 2018143819 A RU2018143819 A RU 2018143819A
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product according
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catalytic product
catalytic
alumina
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RU2018143819A
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RU2771714C2 (ru
RU2018143819A3 (ru
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Джон Леонелло Каски
Джиллиан Элэйн КОЛЛИЕР
Лусия ГАБЕРОВА
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Джонсон Мэтти Паблик Лимитед Компани
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    • C01B39/48—Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
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Claims (20)

1. Каталитическое изделие, содержащее:
а) каталитическую композицию, включающую алюмосиликатное молекулярное сито, имеющее структуру AEI, средний размер кристаллов между примерно 0,1 и примерно 15 мкм, по существу не содержит галогенов, от примерно 1 до примерно 5 масс.% промотирующего металла, в расчете на общую массу материала молекулярного сита, и связующее, включающее компонент, выбранный из глинозема, кремнезема, нецеолитового кремнезем-глинозема, диоксида титана, диоксида циркония, оксида церия, и
b) фильтр твердых частиц, на который или/или в который помещена указанная композиция.
2. Каталитическое изделие по п.1, где связующее содержит глинозем.
3. Каталитическое изделие по п. 2, в котором промотирующим металлом является медь или железо.
4. Каталитическое изделие по п.2, где глиноземный компонент связующего представляет собой гамма-оксид алюминия, или тета-оксид алюминия.
5. Каталитическое изделие по п.2, где связующее по существу состоит из глинозема.
6. Каталитическое изделие по п. 2, в котором фильтр является фильтром с протеканием через стенки.
7. Каталитическое изделие по п. 6, в котором композиция представляет собой покрытие на фильтре или внутри фильтра.
8. Каталитическое изделие по п. 7, в котором покрытие включает покрытие поверхности фильтра, проникающее покрытие или их комбинацию.
9. Каталитическое изделие по п. 8, в котором покрытие включает покрытие поверхности фильтра.
10. Каталитическое изделие по п. 9, в котором покрытие включает покрытие расположено на входной стороне фильтра.
11. Каталитическое изделие по п. 10, где фильтр дополнительно включает катализатор окисления аммиака (AMOX), расположенный на выходной стороне фильтра.
12. Каталитическое изделие по п. 2, где фильтр имеет пористость примерно от 40 до 70%.
13. Каталитическое изделие по п. 2, где фильтр имеет эффективность по меньшей мере примерно 70%.
14. Каталитическое изделие по п. 2, где фильтр имеет объем взаимосвязанных пор по меньшей мере примерно 30.
15. Каталитическое изделие по п. 2, где фильтр имеет средний размер пор от примерно 10 до примерно 40 мкм.
16. Каталитическое изделие по п. 2, где каталитическая композиция представляет собой «washcoat», при этом загрузка покрытия на фильтре «washcoat» составляет примерно от 1,5 г/дюйм3 (0,092 г/см3), до примерно 2,5 г/дюйм3 (0,153 г/см3).
17. Каталитическое изделие по п. 1, где алюмосиликатное молекулярное сито, имеющее структуру AEI, имеет величину отношения кремнезема к глинозему (SAR) от примерно 15 до примерно 20, средний размер кристаллов составляет от примерно 0,1 и до примерно 10 мкм.
18. Каталитическое изделие по п. 17, где средний размер кристаллов составляет от примерно 0,5 и примерно 5 мкм.
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