Development of Lean NOx Catalyst for Lean Burn Gasoline Engine

机译：瘦燃烧汽油发动机瘦NOx催化剂的开发

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Lean NOx catalyst for a lean burn gasoline engine was developed. This catalyst could constantly reduce NOx under lean burn driving condition by using hydrocarbon as a reducing agent. This catalyst consists of platinum (Pt), iridium (Ir) and rhodium (Rh) as active metals and H-MFI type zeolite as a support material. This catalyst had high thermal durability that was caused by Pt-Ir-Rh composite that suppressed the growth of particle size of itself during thermal aging and MFI zeolite that ahd high thermal durability and HC trap activity. lean burn vehicle with this developed catalyst achieved emission legislation limit after an engine endurance test and improved 16% of fuel economy at JPN 10-15 mode.

机译：开发了瘦燃烧汽油发动机的瘦NOx催化剂。通过使用烃作为还原剂，该催化剂可以在稀燃燃烧条件下不断降低NOx。该催化剂由铂（Pt），铱（IR）和铑（RH）作为活性金属和H-MFI型沸石作为支撑材料组成。该催化剂具有高热耐久性，该热耐久性是由PT-IR-RH复合材料引起的，所述PT-IR-RH复合材料抑制了在热老化和MFI沸石期间粒度的粒度的生长，即AHD高热耐久性和HC捕集活动。瘦燃烧车辆具有这种发达的催化剂在发动机耐久性测试后实现了发射立法，并在JPN 10-15模式下提高了16％的燃料经济性。

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《Tokyo conference on advanced catalytic science and technology》|1999年||共6页
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H. Iwakuni; A. Takami; K. Komatsu;
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1. NOx abatement for lean-burn engines under lean-rich atmosphere over mixed NSR-SCR catalysts: Influences of the addition of a SCR catalyst and of the operational conditions [J] . E.C. Corbos, M. Haneda, X. Courtois Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 2009,第2期

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2. Effect of exhaust gases of Exhaust Gas Recirculation (EGR) coupling lean-burn gasoline engine on NOx purification of Lean NOx trap (LNT) [J] . Lei Liu, Zhijun Li, Shiyu Liu, Mechanical systems and signal processing . 2017,第PTaB期

机译：废气再循环（EGR）稀燃汽油机废气对稀薄NOx捕集器（LNT）的NOx净化的影响
3. Development of NOx Storage-reduction 3-way Catalyst for Lean-burn Engines [J] . Naoto Miyoshi, Tsuneyuki Tanizawa, Shin-ichi Takeshima, Toyota Technical Review . 1995,第2期

机译：稀燃发动机的NOx还原减少型三效催化剂的开发
4. Development of Lean NOx Catalyst for Lean Burn Gasoline Engine [C] . H. Iwakuni, A. Takami, K. Komatsu Tokyo conference on advanced catalytic science and technology . 1999

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8. Preparation Effects on the Performance of Silica-Doped Hydrous Titanium Oxide (HTO:Si)-Supported Pt Catalysts for Lean-Burn NOx Reduction by Hydrocarbons. [R] . Gardner, T. J., McLaughlin, L. I., Mowery, D. L., 2002

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Development of Lean NOx Catalyst for Lean Burn Gasoline Engine

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