RU2015135446A - Автомобильные каталитические композиты, имеющие слой с двумя металлами - Google Patents
Автомобильные каталитические композиты, имеющие слой с двумя металлами Download PDFInfo
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- RU2015135446A RU2015135446A RU2015135446A RU2015135446A RU2015135446A RU 2015135446 A RU2015135446 A RU 2015135446A RU 2015135446 A RU2015135446 A RU 2015135446A RU 2015135446 A RU2015135446 A RU 2015135446A RU 2015135446 A RU2015135446 A RU 2015135446A
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- Prior art keywords
- oxide
- composite
- alumina
- component
- cerium oxide
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- 239000002131 composite material Substances 0.000 title claims 37
- 230000003197 catalytic effect Effects 0.000 title claims 18
- 229910052751 metal Inorganic materials 0.000 title claims 14
- 239000002184 metal Substances 0.000 title claims 14
- 150000002739 metals Chemical class 0.000 title claims 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 16
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 14
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 14
- 239000010410 layer Substances 0.000 claims 14
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 12
- 229910052684 Cerium Inorganic materials 0.000 claims 11
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 11
- 239000000463 material Substances 0.000 claims 9
- 229910000420 cerium oxide Inorganic materials 0.000 claims 8
- 229910052703 rhodium Inorganic materials 0.000 claims 8
- 239000010948 rhodium Substances 0.000 claims 8
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims 8
- 229910052763 palladium Inorganic materials 0.000 claims 7
- DDPNPTNFVDEJOH-UHFFFAOYSA-N [O-2].[Zr+4].[O-2].[Ce+3] Chemical compound [O-2].[Zr+4].[O-2].[Ce+3] DDPNPTNFVDEJOH-UHFFFAOYSA-N 0.000 claims 6
- 239000003870 refractory metal Substances 0.000 claims 6
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 4
- 238000006243 chemical reaction Methods 0.000 claims 4
- 239000007789 gas Substances 0.000 claims 4
- 229930195733 hydrocarbon Natural products 0.000 claims 4
- 150000002430 hydrocarbons Chemical class 0.000 claims 4
- 239000000758 substrate Substances 0.000 claims 4
- -1 compounds lanthanum oxide Chemical class 0.000 claims 3
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims 3
- 229910044991 metal oxide Inorganic materials 0.000 claims 3
- 150000004706 metal oxides Chemical class 0.000 claims 3
- 230000001590 oxidative effect Effects 0.000 claims 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 3
- 239000007900 aqueous suspension Substances 0.000 claims 2
- 239000011230 binding agent Substances 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 2
- 239000003381 stabilizer Substances 0.000 claims 2
- 229910052712 strontium Inorganic materials 0.000 claims 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- JCEWZHXKTRLONO-UHFFFAOYSA-N [O-2].[Nd+3].[La+3].[O-2].[Ba+2] Chemical compound [O-2].[Nd+3].[La+3].[O-2].[Ba+2] JCEWZHXKTRLONO-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000969 carrier Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 229910052697 platinum Inorganic materials 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 239000002356 single layer Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
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Claims (44)
1. Автомобильный каталитический композит, который включает:
каталитический материал на подложке, при этом каталитический материал включает слой с двумя металлами, который содержит:
родиевый компонент на первом носителе, который содержит компонент оксида тугоплавкого металла или первый композит оксид церия-оксид циркония;
палладиевый компонент на втором носителе, который содержит второй композит оксид церия-оксид циркония;
один или более из таких компонентов как промотор, стабилизатор или связующее;
где каталитический материал эффективен в трехкомпонентной конверсии (TWC) для по существу одновременного окисления монооксида углерода и углеводородов и восстановления оксидов азота, и
где общее количество первого и второго композитов оксид церия-оксид циркония в слое с двумя металлами равно или превышает количество компонента оксида тугоплавкого металла.
2. Композит по п. 1, отличающийся тем, что палладиевый компонент, родиевый компонент или оба эти компонента термически зафиксированы.
3. Композит по п. 1, отличающийся тем, что первый носитель для родиевого компонента содержит носитель на основе глинозема, выбранный из группы, состоящей из глинозема, глинозема-оксида циркония, глинозема-оксида церия-оксида циркония, оксида лантана-глинозема, оксида лантана-оксида циркония-глинозема, оксида бария-глинозема, оксида бария оксида лантана-глинозема, оксида бария оксида лантана-оксида неодима глинозема и глинозема-оксида церия или носитель на основе циркония.
4. Композит по п. 1, отличающийся тем, что первый носитель для родиевого компонента включает композит оксид церия-оксид циркония, содержащий 20% по весу или менее оксида церия.
5. Композит по п. 1, отличающийся тем, что второй носитель для палладиевого компонента включает композит оксид церия-оксид циркония, содержащий по меньшей мере 25% по весу оксида церия.
6. Композит по п. 1, отличающийся тем, что весовое отношение общего количества первого и второго композитов оксид церия-оксид циркония к количеству компонента оксида тугоплавкого металла в слое с двумя металлами больше, чем 1:1.
7. Композит по п. 1, отличающийся тем, что слой с двумя металлами включает, по весовому проценту слоя с двумя металлами:
второй композит оксид церия-оксид циркония, количество которого находится в диапазоне 40-50%;
тугоплавкий компонент оксид металла, количество которого находится в диапазоне 40-50%; и
одно или более из соединений оксид лантана, оксид бария, оксид циркония и стронций в количестве вплоть до 10%;
отличающийся тем, что второй композит оксид церия-оксид циркония содержит оксид церия, количество которого находится в диапазоне 25-45% по весу от второго композита оксид церия-оксид циркония.
8. Композит по п. 1, отличающийся тем, что слой с двумя металлами содержит, по весовому проценту слоя с двумя металлами:
второй композит оксид церия-оксид циркония, количество которого находится в диапазоне 70-80%;
компонент оксид тугоплавкого металла, количество которого находится в диапазоне 10-20%; и
одно или более из соединений оксид лантана, оксид бария, оксид циркония и стронций в количестве вплоть до 10%;
отличающийся тем, что второй композит оксид церия-оксид циркония содержит оксид церия, количество которого находится в диапазоне 25-45% по весу от второго композита оксид церия-оксид циркония.
9. Композит по п. 1, отличающийся тем, что каталитический материал дополнительно содержит второй слой поверх слоя с двумя металлами, второй слой содержит родиевый компонент на третьем носителе, платиновый компонент на четвертом носителе, палладиевый компонент на пятом носителе или их комбинацию.
10. Автомобильный каталитический композит, который содержит:
каталитический материал на подложке, при этом каталитический материал, включает слой с двумя металлами, который содержит:
родиевый компонент на носителе, который представляет собой активированное глиноземное соединение, выбранное из группы, состоящей из глинозема, глинозема-оксида циркония, глинозема-оксида церия-оксида циркония, оксида лантана-глинозема, оксида лантана-оксида циркония-глинозема, оксида бария-глинозема, оксида бария оксида лантана-глинозема, оксида бария оксида лантана-оксида неодима глинозема и глинозема-оксида церия;
палладиевый компонент, термически прикрепленный к композиту оксид церия-оксид циркония, содержащий оксид церия в количестве, которое находится в диапазоне 25-45% по весу от композита оксид церия-оксид циркония;
одно или более из соединений оксид лантана, оксид бария и оксид циркония;
где каталитический материал эффективен в трехкомпонентной конверсии (TWC) для по существу одновременного окисления монооксида углерода и углеводородов и восстановления оксидов азота, и
где весовое отношение количества композита оксид церия-оксид циркония к количеству активированного глиноземного соединения в слое с двумя металлами составляет 4:1 или более.
11. Композит по п. 10, отличающийся тем, что активированное глиноземное соединение содержит соединение глинозем-оксид церия.
12. Система обработки выхлопных газов, которая включает каталитический композит по п. 1, расположенный ниже бензинового двигателя.
13. Система обработки выхлопных газов по п. 12, которая дополнительно содержит композит трехкомпонентного каталитического конвертора (TWC) с глухим соединением ниже бензинового двигателя, где каталитический композит расположен ниже каталитического композита TWC с глухим соединением и перед катализатором очистки от NOx.
14. Способ обработки выхлопного газа, содержащего углеводороды, монооксид углерода и оксиды азота, который включает: приведение выхлопного газа в контакт с каталитическим композитом по п. 1.
15. Способ изготовления каталитического композита, который включает: формирование каталитического материала для трехкомпонентной конверсии (TWC), включающий следующие стадии:
диспергирование родиевого компонента по первому носителю, содержащему компонент оксид тугоплавкого металла или первый композит оксид церия-оксид циркония для формирования первого пропитанного носителя;
необязательно, прикрепление родиевого компонента к первому пропитанному носителю;
диспергирование палладиевого компонента по второму носителю, содержащему второй композит оксид церия-оксид циркония, для формирования второго пропитанного носителя;
необязательно, прикрепление палладиевого компонента ко второму пропитанному носителю;
последующее формирование водной суспензии покрытия из пористых оксидов смешиванием воды, первого и второго пропитанных носителей и одного или более таких компонентов как промотор, стабилизатор или связующее;
нанесение водной суспензии покрытия из пористых оксидов на подложку для формирования на подложке единственного слоя с двумя металлами;
обжиг слоя с двумя металлами для формирования каталитического композита;
где каталитический материал эффективен в трехкомпонентной конверсии (TWC) для по существу одновременного окисления монооксида углерода и углеводородов и восстановления оксидов азота, и
где общее количество первого и второго композитов оксид церия-оксид циркония равно или превышает количество компонента оксида тугоплавкого металла в слое с двумя металлами.
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-
2014
- 2014-01-17 US US14/157,865 patent/US9266092B2/en active Active
- 2014-01-24 CN CN201480005376.XA patent/CN104937225B/zh active Active
- 2014-01-24 CA CA2897016A patent/CA2897016C/en active Active
- 2014-01-24 BR BR112015017202-4A patent/BR112015017202B1/pt active IP Right Grant
- 2014-01-24 MX MX2015009337A patent/MX359178B/es active IP Right Grant
- 2014-01-24 RU RU2015135446A patent/RU2658002C2/ru active
- 2014-01-24 EP EP14742867.6A patent/EP2948653A4/en active Pending
- 2014-01-24 JP JP2015555293A patent/JP6449785B2/ja active Active
- 2014-01-24 WO PCT/US2014/012862 patent/WO2014116897A1/en active Application Filing
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CN104937225B (zh) | 2019-07-30 |
CN104937225A (zh) | 2015-09-23 |
JP2016505380A (ja) | 2016-02-25 |
US20140205523A1 (en) | 2014-07-24 |
MX2015009337A (es) | 2015-09-29 |
BR112015017202B1 (pt) | 2022-05-17 |
EP2948653A4 (en) | 2016-08-24 |
US9266092B2 (en) | 2016-02-23 |
RU2658002C2 (ru) | 2018-06-19 |
EP2948653A1 (en) | 2015-12-02 |
CA2897016C (en) | 2020-07-07 |
MX359178B (es) | 2018-09-18 |
BR112015017202A2 (pt) | 2017-07-11 |
ZA201506073B (en) | 2017-11-29 |
JP6449785B2 (ja) | 2019-01-09 |
WO2014116897A1 (en) | 2014-07-31 |
CA2897016A1 (en) | 2014-07-31 |
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