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RU2017115769A - Молекулярно-ситовый катализатор для очистки отработавшего газа - Google Patents

Молекулярно-ситовый катализатор для очистки отработавшего газа Download PDF

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RU2017115769A
RU2017115769A RU2017115769A RU2017115769A RU2017115769A RU 2017115769 A RU2017115769 A RU 2017115769A RU 2017115769 A RU2017115769 A RU 2017115769A RU 2017115769 A RU2017115769 A RU 2017115769A RU 2017115769 A RU2017115769 A RU 2017115769A
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catalyst
exhaust gas
catalyst according
metal
gas purification
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RU2017115769A3 (ru
RU2723648C2 (ru
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Алехандра РИВАС-КАРДОНА
Хай-Ин ЧЭНЬ
Джозеф ФЕДЕЙКО
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Джонсон Мэтти Паблик Лимитед Компани
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    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
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    • B01J29/7049—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
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    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
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    • B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
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    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
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  • Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Dispersion Chemistry (AREA)

Claims (17)

1. Катализатор для очистки отработавшего газа, содержащий нагруженный металлом цеолит с каркасом АFХ и кремнеземным модулем (КМ) от примерно 15 до примерно 50.
2. Катализатор по п.1, в котором нагруженный металлом цеолит содержит от примерно 0,1 до примерно 8 массовых процентов по меньшей мере одного металла, выбранного из группы, состоящей из Cu, Fe, Zn, Ni, Mn, Ce, V, W, Ru, Rh, Pd, Pt, Ag, Au и Re.
3. Катализатор по п.2, в котором нагруженный металлом цеолит содержит от примерно 0,5 до примерно 5 массовых процентов Cu.
4. Катализатор по п.3, в котором упомянутая Cu представляет собой некаркасную медь.
5. Катализатор по п.1, в котором КМ составляет от примерно 20 до примерно 40.
6. Катализатор по п.1, в котором КМ составляет от примерно 20 до примерно 30.
7. Катализатор по п.1, в котором бóльшая часть кристаллической фазы цеолита имеет каркас АFХ.
8. Катализатор по п.1, в котором цеолит имеет средний размер частиц примерно от 0,1 до 15 микрон.
9. Катализатор по п.1, причем катализатор является эффективным для способствования реакции NН3 с NОх с селективным образованием азота и воды.
10. Катализатор по п.1, причем упомянутый катализатор экструдирован в сотовый монолит.
11. Пористое покрытие с катализатором, содержащее нагруженный металлом цеолит с каркасом АFХ и кремнеземным модулем (КМ) от примерно 15 до примерно 50 и одно или более связующих, выбранных из оксида алюминия, оксида кремния, оксида церия, оксида циркония, оксида титана и их сочетаний.
12. Система очистки отработавшего газа, содержащая:
а. подложку, выбранную из прямопроточных сотовых монолитов и стенопроточных фильтров; и
b. каталитическое покрытие, расположенное на и/или в подложке, причем каталитическое покрытие содержит композицию катализатора по п.1.
13. Система очистки отработавшего газа по п.12, причем система дополнительно содержит катализатор окисления ниже по потоку от по меньшей мере части каталитического покрытия.
14. Система очистки отработавшего газа по п.12, причем система дополнительно содержит катализатор захвата NОх или поглощения NОх, расположенный выше по потоку от упомянутого каталитического покрытия.
15. Способ очистки отработавшего газа, содержащий этап контактирования смеси восстановителя СКВ и содержащего NОх отработавшего газа с катализатором, содержащим нагруженный металлом цеолит с каркасом АFХ и кремнеземным модулем (КМ) от примерно 15 до примерно 50, причем при упомянутом контактировании восстанавливают по меньшей мере часть NОх до азота и воды.
RU2017115769A 2014-10-07 2015-10-06 Молекулярно-ситовый катализатор для очистки отработавшего газа RU2723648C2 (ru)

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US201462060903P 2014-10-07 2014-10-07
US62/060,903 2014-10-07
PCT/US2015/054140 WO2016057456A1 (en) 2014-10-07 2015-10-06 Molecular sieve catalyst for treating exhaust gas

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JP (1) JP6615193B2 (ru)
KR (1) KR102428707B1 (ru)
CN (1) CN107107043A (ru)
BR (1) BR112017007017B1 (ru)
DE (1) DE102015116926A1 (ru)
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WO2016077667A1 (en) * 2014-11-14 2016-05-19 Johnson Matthey Public Limited Company Afx zeolite
CN107207270B (zh) * 2015-02-05 2020-09-08 东曹株式会社 新型沸石
JP6899834B2 (ja) * 2016-04-13 2021-07-07 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフトＵｍｉｃｏｒｅ ＡＧ ＆ Ｃｏ．ＫＧ 活性コーティングを有する粒子フィルタ
CN108712927B (zh) * 2016-04-13 2022-01-04 优美科股份公司及两合公司 具有scr活性涂层的催化剂
US9908108B2 (en) * 2016-06-07 2018-03-06 Chevron U.S.A. Inc. High-silica AFX framework type zeolites
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RU2017115769A3 (ru) 2019-01-31
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