New Design of a Ceramic Filter for Diesel Emission Control Applications
New Design of a Ceramic Filter for Diesel Emission Control Applications
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DOI：
10.1111/j.1744-7402.2005.02045.x
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发表时间：
2005-11
影响因子：
2.1
通讯作者：
A. Pyzik;Cheng G. Li
中科院分区：
文献类型：
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作者：
A. Pyzik;Cheng G. Li
由基于莫来石的先进陶瓷材料（ACM）制成的柴油机颗粒过滤器（DPF）已经证明了高过滤效率、低压降、高温处理能力以及在60%或更高的孔隙率下的优异机械完整性。由于能够控制微观结构、总孔隙率和粒度分布，陶氏的针状莫来石可以进行定制，以满足深床过滤和细颗粒排放控制的要求。此外，ACM DPF适用于催化应用，并且可以在广泛的催化剂和催化剂负载范围内保持其性能。这项研究描述了一种材料选择的DPF设计，满足目前的柴油机颗粒物排放控制要求，以及一个四路NOx控制系统。
Diesel particulate filters (DPF) made from an advanced ceramic material (ACM) based on mullite have demonstrated high filtration efficiency, low-pressure drop, high-temperature handling capability, and excellent mechanical integrity at a porosity of 60% or higher. Due to the ability to control microstructure, total porosity, and particle size distribution, Dow's acicular mullite can be tailored to meet requirements for deep bed filtration and fine particles emission control. In addition, the ACM DPF is suitable for catalyzed applications and it can retain its performance with a broad range of catalysts and over a wide range of catalyst loadings. This study describes a material selected for a DPF design that meets current diesel particulate emission control requirements as well as a four-way NO x control system.