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三路催化固体和多孔粒子膜过器颗粒支持的数值设计

Teerapat Suteerapongpun¹, Katsunori Hanamura¹

¹Department of Mechanical Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro City, Tokyo 152-8550, Japan.

|July 28, 2023

概括

用于三向催化 (TWC) 过器的新型颗粒基板显著减少了催化剂材料和压力下降,同时保持了高烟尘过率. 这一创新优化了催化转换器的性能和效率.

科学领域:

化学工程是化学工程的重要组成部分.
材料科学材料科学材料科学
环境科学环境科学

背景情况:

用于催化转换器的传统过器面临着催化剂材料使用和压力下降的挑战.
三路催化 (TWC) 过器对于减少有害排放至关重要.

研究的目的:

为了研究TWC固体粒子膜过器的新型颗粒基质.
评估基板对催化剂材料减少,压力下降和过效率的影响.

主要方法:

使用数值模拟来分析拟议的颗粒基板的性能.
这项研究将新型基板与传统过器设计进行了比较.

主要成果:

建议的基板将催化剂材料减少39%,压力下降33%.
实现了近100%的烟尘过效率.
加入TWC多孔颗粒进一步降低了压力下降,尽管注意到了特定表面积的权衡.

结论:

研究的颗粒基板为优化TWC波器设计提供了一个有前途的解决方案.
这种方法可以带来更高效和更具成本效益的催化转换器,减少对环境的影响.

关键词:

它们是巨孔的.膜过器是一种膜过器.颗粒过器的颗粒过器压力下降压力下降压力下降三路催化剂 (TWC) 的使用

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Filtration

Filtration

Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...