RU2015143276A - КАТАЛИЗАТОР-НАКОПИТЕЛЬ NOх С УЛУЧШЕННЫМИ ГИДРОТЕРМАЛЬНОЙ УСТОЙЧИВОСТЬЮ И СТЕПЕНЬЮ ПРЕВРАЩЕНИЯ NOх - Google Patents
КАТАЛИЗАТОР-НАКОПИТЕЛЬ NOх С УЛУЧШЕННЫМИ ГИДРОТЕРМАЛЬНОЙ УСТОЙЧИВОСТЬЮ И СТЕПЕНЬЮ ПРЕВРАЩЕНИЯ NOх Download PDFInfo
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- RU2015143276A RU2015143276A RU2015143276A RU2015143276A RU2015143276A RU 2015143276 A RU2015143276 A RU 2015143276A RU 2015143276 A RU2015143276 A RU 2015143276A RU 2015143276 A RU2015143276 A RU 2015143276A RU 2015143276 A RU2015143276 A RU 2015143276A
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- nitric oxide
- layer
- storage catalyst
- oxide storage
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- 239000003054 catalyst Substances 0.000 title claims 15
- 230000009466 transformation Effects 0.000 title 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 15
- 239000010410 layer Substances 0.000 claims 13
- 230000018537 nitric oxide storage Effects 0.000 claims 12
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 8
- 239000002245 particle Substances 0.000 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 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 6
- 239000000203 mixture Substances 0.000 claims 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims 5
- 150000001342 alkaline earth metals Chemical class 0.000 claims 5
- 229910052751 metal Inorganic materials 0.000 claims 5
- 239000002184 metal Substances 0.000 claims 5
- 229910052697 platinum Inorganic materials 0.000 claims 5
- 229910052763 palladium Inorganic materials 0.000 claims 4
- 229910052703 rhodium Inorganic materials 0.000 claims 4
- 239000010948 rhodium Substances 0.000 claims 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims 4
- 229910052788 barium Inorganic materials 0.000 claims 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims 3
- 239000011247 coating layer Substances 0.000 claims 3
- 239000002131 composite material Substances 0.000 claims 3
- 238000002441 X-ray diffraction Methods 0.000 claims 2
- 230000032683 aging Effects 0.000 claims 2
- 229910052741 iridium Inorganic materials 0.000 claims 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
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Claims (18)
1. Катализатор-накопитель оксида азота, содержащий:
слой на носителе, включающий частицы диоксида церия-глинозема, в котором фаза диоксида церия присутствует с массовым процентом в композите в диапазоне от около 20% до около 80% относительно оксида, и компонент щелочноземельный металл, нанесенный на частицы диоксида церия-глинозема, где CeO2 присутствует в виде кристаллитов, которые гидротермально устойчивы и имеют средний размер кристаллита менее 130 
после состаривания при 950°C в течение 5 часов в 2% O2 и 10% пара в N2.
2. Катализатор-накопитель оксида азота по п. 1, отличающийся тем, что слой содержит первый слой покрытия из пористых оксидов на носителе и второй слой покрытия из пористых оксидов на первом слое покрытия из пористых оксидов.
3. Катализатор-накопитель оксида азота по п. 1 или 2, отличающийся тем, что компонент щелочноземельный металл содержит бариевый компонент.
4. Катализатор-накопитель оксида азота по п. 1 или 2, дополнительно содержащий по меньшей мере один из металлов платиновой группы, выбранный из группы, состоящей из платины, палладия, родия, иридия и их смесей, нанесенный на частицы диоксида церия-глинозема.
5. Катализатор-накопитель оксида азота по п. 4, отличающийся тем, что металл платиновой группы выбирают из платины, палладия, родия и их смесей.
6. Катализатор-накопитель оксида азота по п. 3, отличающийся тем, что бариевый компонент присутствует в количестве в диапазоне от около 5% до 30% по массе относительно оксида первого слоя.
7. Катализатор-накопитель оксида азота, содержащий:
первый слой на носителе, содержащий частицы диоксида церия-глинозема, в котором компонент щелочноземельный металл нанесен на частицы; и
второй слой на первом слое, при этом второй слой содержит частицы диоксида церия-глинозема и, по существу, свободен от щелочноземельного металла, при этом частицы диоксид церия-глинозем содержат фазу диоксида церия, которая присутствует с массовым процентом в композите в диапазоне от около 20% до около 80% относительно оксида.
8. Катализатор-накопитель оксида азота по п. 7, отличающийся тем, что компонент щелочноземельный металл содержит бариевый компонент в количестве в диапазоне от около 5% до 30% по массе относительно оксида первого слоя.
9. Катализатор-накопитель оксида азота по п. 7 или 8, отличающийся тем, что первый слой и второй слой дополнительно содержат по меньшей мере один из металлов платиновой группы, который выбирают из группы, состоящей из платины, палладия, родия, иридия и их смесей, и наносят на частицы диоксид церия-глинозем.
10. Катализатор-накопитель оксида азота по п. 9, отличающийся тем, что металл платиновой группы в первом слое выбирают из платины, палладия и их смесей, и при этом металл платиновой группы во втором слое выбирают из платины, родия и их смесей.
11. Катализатор-накопитель оксида азота по любому из пп. 7, 8, 10, отличающийся тем, что размер кристаллитов CeO2, определенный при помощи рентгенодифракционного анализа (XRD) после состаривания каталитического устройства при 950°C в течение 5 часов в 2% O2 и 10% пар/N2, составляет менее 130 .
12. Катализатор-накопитель оксида азота по любому из пп. 7, 8, 10, отличающийся тем, что первый слой расположен на носителе с сотовой структурой.
13. Катализатор-накопитель оксида азота по любому из пп. 7, 8, 10, отличающийся тем, что композит из CeO2 и Al2O3 содержит диоксид церия в количестве в диапазоне от около 30 до 70% по массе относительно оксида.
14. Система, содержащая катализатор-накопитель оксида азота по п. 1 и двигатель, работающий на бедной смеси, расположенный выше катализатора-накопителя оксида азота по ходу потока.
15. Система по п. 14, дополнительно содержащая катализатор и, необязательно, сажевый фильтр.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361778871P | 2013-03-13 | 2013-03-13 | |
| US61/778,871 | 2013-03-13 | ||
| US14/204,386 US9610564B2 (en) | 2013-03-13 | 2014-03-11 | NOx storage catalyst with improved hydrothermal stability and NOx conversion |
| US14/204,386 | 2014-03-11 | ||
| PCT/US2014/023683 WO2014164876A1 (en) | 2013-03-13 | 2014-03-11 | Nox storage catalyst with improved hydrothermal stability and nox conversion |
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| RU2015143276A true RU2015143276A (ru) | 2017-04-19 |
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| RU2015143276A RU2015143276A (ru) | 2013-03-13 | 2014-03-11 | КАТАЛИЗАТОР-НАКОПИТЕЛЬ NOх С УЛУЧШЕННЫМИ ГИДРОТЕРМАЛЬНОЙ УСТОЙЧИВОСТЬЮ И СТЕПЕНЬЮ ПРЕВРАЩЕНИЯ NOх |
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| US (1) | US9610564B2 (ru) |
| EP (1) | EP2991761B1 (ru) |
| JP (1) | JP6554457B2 (ru) |
| KR (1) | KR102358141B1 (ru) |
| CN (1) | CN105188920B (ru) |
| BR (1) | BR112015022359A2 (ru) |
| CA (1) | CA2903117C (ru) |
| MX (1) | MX2015012364A (ru) |
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|---|---|---|---|---|
| GB2514177A (en) * | 2013-05-17 | 2014-11-19 | Johnson Matthey Plc | Oxidation catalyst for a compression ignition engine |
| WO2016033046A1 (en) * | 2014-08-25 | 2016-03-03 | Basf Corporation | Catalyst with improved hydrothermal stability |
| US10343154B2 (en) | 2014-11-25 | 2019-07-09 | Graver Technologies Llc | High capacity adsorbent for fluoride ion and oxyanions of phosphorous and arsenic and method for making the same |
| US11583846B2 (en) | 2014-11-25 | 2023-02-21 | Graver Technologies Llc | High capacity adsorbent for oxyanions and cations and method for making the same |
| CN107223072B (zh) | 2014-12-08 | 2021-01-08 | 巴斯夫公司 | 用于排气系统的一氧化二氮脱除催化剂 |
| CN107735161B (zh) * | 2015-03-03 | 2021-05-04 | 巴斯夫公司 | NOx吸附剂催化剂、方法和系统 |
| PL3277406T3 (pl) * | 2015-03-03 | 2024-02-05 | Basf Corporation | Pochłaniacz NOx z mieszanki ubogiej o zwiększonej wydajności w wysokich i niskich temperaturach |
| CN107530687A (zh) * | 2015-04-07 | 2018-01-02 | 优美科触媒日本有限公司 | 内燃机排气的净化催化剂以及使用该催化剂的排气净化方法 |
| ES2789424T3 (es) * | 2015-06-12 | 2020-10-26 | Basf Corp | Sistema de tratamiento de gases de escape |
| DE102015225579A1 (de) * | 2015-12-17 | 2017-06-22 | Umicore Ag & Co. Kg | Verfahren zur Verhinderung der Kontamination eines SCR-Katalysators mit Platin |
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2014
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| US9610564B2 (en) | 2017-04-04 |
| EP2991761A1 (en) | 2016-03-09 |
| CA2903117C (en) | 2021-08-24 |
| JP6554457B2 (ja) | 2019-07-31 |
| KR102358141B1 (ko) | 2022-02-07 |
| MX2015012364A (es) | 2016-04-25 |
| CN105188920B (zh) | 2018-12-18 |
| WO2014164876A1 (en) | 2014-10-09 |
| BR112015022359A2 (pt) | 2017-07-18 |
| CN105188920A (zh) | 2015-12-23 |
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