RU2016135251A - Содержащий сплав катализатор, способ изготовления и использования - Google Patents

Содержащий сплав катализатор, способ изготовления и использования Download PDF

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RU2016135251A
RU2016135251A RU2016135251A RU2016135251A RU2016135251A RU 2016135251 A RU2016135251 A RU 2016135251A RU 2016135251 A RU2016135251 A RU 2016135251A RU 2016135251 A RU2016135251 A RU 2016135251A RU 2016135251 A RU2016135251 A RU 2016135251A
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substrate
catalyst
iii
stage
reducing agent
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RU2016135251A
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RU2675842C2 (ru
RU2016135251A3 (ru
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Давид БЕРЖЕАЛЬ
Эндрю Фрэнсис ЧИФФИ
Питер Джонстон
Франсуа МОРО
Пол Ричард ФИЛЛИПС
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Джонсон Мэтти Паблик Лимитед Компани
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    • B01D53/34—Chemical or biological purification of waste gases
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    • B01D—SEPARATION
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    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
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  • Chemical & Material Sciences (AREA)
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  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (27)

1. Способ изготовления катализатора на подложке, содержащего сплав, по меньшей мере, двух металлов, при этом данный способ включает следующие стадии:
(i) объединение материала подложки в виде частиц, раствора первого соединения платины, раствора соединения палладия и раствора щелочного осаждающего агента с образованием суспензионной смеси;
(ii) перемешивание полученной смеси; и
(iii) приведение твердой фазы в контакт с восстановителем.
2. Способ по п. 1, который представляет собой способ осаждения с выпадением осадка.
3. Способ по п.1 или 2, в котором на стадии (i) поддерживают температуру от 0°С до 100°С.
4. Способ по п.1, где стадия (ii) перемешивания полученной смеси включает стадии:
(ii) (а) перемешивания полученной смеси; а затем
(b) отделения твёрдой фазы от полученной смеси.
5. Способ по п.1, в котором на стадии (iii) поддерживают температуру от 0 до 100°С.
6. Способ по п.1, в котором восстановитель содержит гидразин.
7. Способ по п.1, в котором стадия (iii) приведения твердой фазы в контакт с восстановителем включает стадии:
(iii) контактирования твёрдой фазы с восстановителем с получением твёрдого катализатора на подложке, а затем отделения и промывки твёрдого катализатора на подложке.
8. Способ по п. 7, в котором стадия (iii) приведения твердой фазы в контакт с восстановителем включает стадии:
(iii)(a) контактирования твёрдой фазы с восстановителем с получением твёрдого катализатора на подложке, а затем необязательного отделения и промывки твёрдого катализатора на подложке; и
(b) высушивания и/или обжига и/или состаривания твёрдого катализатора на подложке с получением порошкоборазного катализатора.
9. Способ по п.8, в котором стадия (iii)(b) включает состаривание твёрдого катализатора на подложке при температуре от 500 до 900°С в течение по меньшей мере 1 часа с получением порошкообразного катализатора.
10. Способ по п.1, в котором подложка в виде частиц содержит оксид алюминия.
11. Способ по п.10, в котором подложка в виде частиц представляет собой порошок со средним размером частиц от 1 мкм до 1 мм.
12. Способ изготовления катализируемого субстрата, при этом, данный способ включает следующие стадии:
(i) получение первого катализатора на подложке, содержащего сплав по меньшей мере двух металлов, с использованием способа по любому из пп.1-11;
(ii) отделение и промывка первого катализатора на подложке;
(iii) приготовление покрытия из пористого оксида путем создания суспензии первого катализатора на подложке; и
(iv) приведение покрытия из пористого оксида в контакт с субстратом.
13. Способ по п. 12, который не включает стадию сушки или обжига между стадиями (ii) и (iii).
14. Способ по п. 12 или 13, в котором стадия (iii) включает изготовление покрытия из пористого оксида путем создания суспензии первого катализатора на подложке и одного или нескольких вторых катализаторов на подложке, отличных от первого катализатора на подложке.
15. Способ по п.12, в котором субстрат содержит ячеистый монолитный субстрат, имеющий конфигурацию проточного монолитного субстрата или фильтра с проточными стенками.
RU2016135251A 2011-03-04 2012-03-05 Содержащий сплав катализатор, способ изготовления и использования RU2675842C2 (ru)

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US201161449301P 2011-03-04 2011-03-04
US61/449,301 2011-03-04
GBGB1110850.3A GB201110850D0 (en) 2011-03-04 2011-06-27 Catalyst and mehtod of preparation
GB1110850.3 2011-06-27

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EP (1) EP2680970A1 (ru)
JP (2) JP5998157B2 (ru)
KR (2) KR20180096822A (ru)
CN (2) CN103402638B (ru)
BR (1) BR112013021387A2 (ru)
DE (1) DE102012203461A1 (ru)
GB (2) GB201110850D0 (ru)
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