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    • The Effects of Ash Deposited in Diesel Particulate Filter on the Unregulated Emissions
    DOI：10.13949/j.cnki.nrjgc.2021.03.012
    Key Words:ash  diesel particulate filter  unregulated emission  
    Author NameAffiliationE-mail
    王浩浩 School of Mechanical Engineering,Beijing Institute of Technology whh0356@126.com 
    葛蕴珊* School of Mechanical Engineering,Beijing Institute of Technology geyunshan@bit.edu.cn 
    Tan Jianwei School of Mechanical Engineering,Beijing Institute of Technology  
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    Abstract:In terms of DOC（Diesel Oxidize Catalyst）and cDPF (Catalyst Diesel Particulate Filter）diesel engine aftertreatment system, the effects of ash deposited in cDPF on the BTEX and carbonyl compounds emission characters were studied in this work. Research results indicate that the tendency of the BTEX emission before cDPF with ash is U shaped with the ash accumulation. Meanwhile, the BTEX emission after CDPF with ash increases clearly compared with the BTEX emission before cDPF with ash in different working condition and the BTEX contents are also changed in different degrees. The total carbonyl compounds emission before cDPF with ash increases obviously compared with the cDPF without ash. In addition, the total carbonyl compounds emission after cDPF with ash decreases obviously and the carbonyl compounds changes a lot in different working condition compared with the before cDPF with ash.
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