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Comparative Analysis of Emission Characteristics of DPF and CDPF Active Regeneration
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Zhongwei Meng1, 2, Bosong Zeng1, Gemeng Ran1, 2, Zhao Chen1
Transactions of CSICE | 2024, 42(1) : 35 - 43
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Transactions of CSICE | 2024, 42(1): 35-43
Comparative Analysis of Emission Characteristics of DPF and CDPF Active Regeneration
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Zhongwei Meng1, 2, Bosong Zeng1, Gemeng Ran1, 2, Zhao Chen1
Affiliations
  • 1.Key Laboratory of Fluid and Power Machinery，Ministry of Education，Xihua University，Chengdu 610039，China
  • 2.Vehicle Measurement，Control and Safety Key Laboratory of Sichuan Province，Xihua University，Chengdu 610039，China
doi: 10.16236/j.cnki.nrjxb.202401005
Outline
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Based on the external heating source regeneration bench and particle loading device，the emission characteristics of outlet gas and particle during active regeneration of diesel particulate filter(DPF)and catalytic DPF(CDPF)under different regeneration temperature and carbon(Printex-U，PU)loading were studied. The results show that the coating of catalyst(Pt)is conducive to the oxidation of PU. Under the same PU loading，CDPF is more likely to produce temperature peaks，and the regeneration efficiency is slightly higher than DPF. DPF regeneration process is accompanied by higher volume fraction CO emission，and a lower concentration nuclear mode particles emission window will appear in the heating stage，and there is almost no particle release in the subsequent regeneration stage. There is almost no CO generation in the regeneration process of CDPF，but a large number of small particles below 30nm will be released in the regeneration stage，and the particle concentration at the outlet of CDPF will gradually increase with the increase of regeneration temperature and PU loading. DPF and CDPF have different optimization windows during regeneration，which is conducive to reducing particulate emissions and maintaining high regeneration efficiency.

diesel particulate filter  /  active regeneration  /  gas emissions  /  particulate emissions
Zhongwei Meng, Bosong Zeng, Gemeng Ran, Zhao Chen. Comparative Analysis of Emission Characteristics of DPF and CDPF Active Regeneration[J]. Transactions of CSICE, 2024 , 42 (1) : 35 -43 . DOI: 10.16236/j.cnki.nrjxb.202401005
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doi: 10.16236/j.cnki.nrjxb.202401005
  • Receive Date：2022-11-05
  • Online Date：2025-12-11
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  • Received：2022-11-05
  • Revised：2023-05-17
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Affiliations
    1.Key Laboratory of Fluid and Power Machinery，Ministry of Education，Xihua University，Chengdu 610039，China
    2.Vehicle Measurement，Control and Safety Key Laboratory of Sichuan Province，Xihua University，Chengdu 610039，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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