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New Design of a Ceramic Filter for Diesel Emission Control Applications
Author(s) -
Pyzik Aleksander J.,
Li Cheng G.
Publication year - 2005
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2005.02045.x
Subject(s) - diesel particulate filter , materials science , mullite , diesel fuel , particulates , porosity , filtration (mathematics) , ceramic , pressure drop , particle size , microstructure , composite material , process engineering , automotive engineering , chemical engineering , engineering , ecology , statistics , physics , mathematics , biology , thermodynamics
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.