Development of the Lean NOx Trap Catalyst with High NOx Conversion and Improved Sulfur-purge Performance

DOI

Bibliographic Information

Other Title
  • リーンNOx トラップ触媒の浄化性能および脱硫黄特性向上に関する研究

Abstract

Introducing LNT catalyst into the market requires improvement of NOx storage amount and also catalyst poisoning countermeasures against sulfur contained in fuel. This study developed a high performance LNT catalyst along with two findings. First, since too much Ba causes the sintering of Pt particles, we found out that the LNT catalyst has a balance point of Ba amount corresponding to catalyst specifications. Secondly, an issue caused by the amount of sulfur remained on the LNT catalyst was improved by enhancing Pt density in the upper layer of the coating. As a result, high sulfur-purge performance was achieved.

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Keywords

Details 詳細情報について

  • CRID
    1390009018098613888
  • NII Article ID
    130008132570
  • DOI
    10.11351/jsaeronbun.53.13
  • ISSN
    18830811
    02878321
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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