Development of HC-SCR System by Diesel Reformed Gas Used a Low Temperature Oxidation
低温酸化反応を用いた軽油改質技術によるHC-SCRの開発
- Delivery
- Available on the other site
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- Paper/Info type
- HINO TECHNICAL REVIEW
No.71
- Pages
- 74-80(Total 7 p)
- Date of publication
- Jan 2022
- Publisher
- Others, Unknown
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Technical Papers and Explanation |
| Author(J) | 1) 佐藤信也, 2) 齋藤 郁, 3) 野村浩司, 4) 菅沼祐介, 5) 三阪 遥 |
| Author(E) | 1) Shinya Sato, 2) Iku Saito, 3) Hiroshi Nomura, 4) Yusuke Suganuma, 5) Haruka Misaka |
| Affiliation(J) | 1) 日野, 2) 日野, 3) 日本大学, 4) 日本大学, 5) 日本大学 |
| Affiliation(E) | 1) Hino, 2) Hino, 3) Nihon University, 4) Nihon University, 5) Nihon University |
| Abstract(J) | ディーゼルエンジンの燃料である軽油をNOx還元に用いたHC-SCR は尿素SCR で必要となる尿素水タンクや尿素水の補給が不要なため、利便性が高いことがユーザーに評価されている。しかし、軽油とNOxとの反応性が低く、軽油消費量の低減が課題であった。そこで、軽油を反応性の高い物質に変換して消費量を低減しつつ、性能向上を狙った軽油の改質を検討した。今回、改質手法として低温酸化反応を用い、軽油からNOx還元効果の高い含酸素化合物を生成することを試みた。改質温度や空燃比など反応条件を変化させ評価した結果、触媒温度573 K のNOx浄化率が4 2 ％（軽油）から86 ％まで大幅に向し、低温酸化を用いた燃料改質が有効であることがわかった。 Translation |
| Abstract(E) | HC-SCR technology using diesel fuel as a reducing agent for NOx emitted from diesel engines is highly convenient because it does not require both installation of urea aqueous solution tanks and supply of urea aqueous solution for urea SCR system. However, the reaction selectivity between diesel fuel and NOx is relatively low, and therefore the reduction of diesel fuel consumption has been recognized as an issue for HC-SCR. In order to tackle this issue, reforming of diesel fuel was investigated to improve NOx reduction performance while reducing diesel fuel consumption by converting diesel fuel into highly reactive components. In this study, the authors employed a low-temperature oxidation reaction as a reforming method to generate oxygen-containing hydrocarbons that are considered to have a high NOx conversion effect. As a result of experiments under variation of reaction conditions such as reforming temperature and air fuel ratio, higher NOx reduction rate up to 86% at 573 K of catalyst temperature was achieved in compared to 42% at the same temperature using a diesel fuel, which led to the conclusion that the fuel reforming using low temperature oxidation was effective to enhance NOx reduction performance. |
