Estimating the In-use Degradation Mechanism of a Pre-oxidation Catalyst for Heavy-duty Urea-SCR Vehicles Complying with the New Long-term Target-based Regulation in Japan
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- Koshika Kenichiroh
- （独）交通安全環境研究所
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- Iwami Nobuya
- 東京濾器 (株)
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- Ichikawa Takayuki
- 東京濾器 (株)
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- Suzuki Hisakazu
- （独）交通安全環境研究所
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- Yamamoto Toshiro
- （独）交通安全環境研究所
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- Goto Yuichi
- （独）交通安全環境研究所
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- Iwamoto Masakazu
- 中央大学
Bibliographic Information
- Other Title
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- 新長期規制対応尿素SCR システム搭載重量車の使用過程における前段酸化触媒 の劣化メカニズムの推定
- シン チョウキ キセイ タイオウ ニョウソ SCR システム トウサイ ジュウリョウシャ ノ シヨウ カテイ ニ オケル ゼンダン サンカ ショクバイ ノ レッカ メカニズム ノ スイテイ
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Abstract
Urea-SCR systems have been installed in heavy-duty vehicles for complying with the new long-term target-based regulation in Japan, contributing to reduce NOx emissions. However, in fiscal 2011, a survey of Ministry of the Environment, Japan reported in-use degradation of the systems in heavy-duty urea-SCR vehicles. In fiscal 2012, in-use degradation mechanisms of a SCR catalyst and ammonia slip catalyst were reported to be hydro carbon poisoning. On the other hand, the degradation mechanism of a pre-oxidation catalyst has been a remained issue in the urea-SCR systems. We studied the in-use degradation mechanism of a pre-oxidation catalyst in urea-SCR systems and revealed temperature and sulfur conditions impacting on the degradation.
Journal
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- Transactions of Society of Automotive Engineers of Japan
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Transactions of Society of Automotive Engineers of Japan 47 (1), 203-208, 2016
Society of Automotive Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679591688576
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- NII Article ID
- 40020734216
- 130006321503
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- NII Book ID
- AN00105913
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- ISSN
- 18830811
- 02878321
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- NDL BIB ID
- 027102826
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
