Effect soluble organic fraction mass fraction on emission characteristics of carbon black

Author:

Li Jiansong12ORCID,Meng Zhongwei3,Liao Jianxiong4

Affiliation:

1. School of Transportation and Logistics Southwest Jiaotong University Chengdu People's Republic of China

2. Department of Mechanical and Electrical Engineering Nanchong Vocational and Technical College Nanchong People's Republic of China

3. Vehicle Measurement, School of Automobile & Transportation Xihua University Chengdu People's Republic of China

4. Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan People's Republic of China

Abstract

AbstractAccording to China's latest emission regulations for the year 2021, diesel vehicles are required to be equipped with a diesel particulate filter (DPF) in accordance with emission standards. To comprehensively understand the regeneration and emission performance of the DPF, an externally heated regeneration performance test bench was established. This study aims to investigate the influence of the soluble organic fraction (SOF) and types of carbon black on particle emissions from the outlet of the DPF. The experimental results indicate that both SOF and carbon black structure can affect DPF regeneration. When the SOF mass fraction increases to 20%, SOF plays a dominant role. The regeneration efficiency of Printex‐U and FW200 carbon black is 62.4% and 60.6%, respectively, with total mass concentrations of 21.8 and 14.9 mg/m3 at the DPF outlet. Compared to conditions without SOF, the regeneration efficiency and total mass concentration at the DPF outlet increase by 1.3 times and 6.6 times for Printex‐U carbon black, and 1.8 times and 440 times for FW200 carbon black, respectively. Additionally, when SOF mass fraction is 0%, the highest proportion of the average particle diameter for both Printex‐U and FW200 carbon black is in the [10, 20] nm range, at 20% and 95%, respectively. When the SOF mass fraction is increased to 20%, the proportions of the average particle diameter for both types of carbon black in the [10, 20] nm range rise to above 99%. This study provides a relevant experimental foundation for the emission control of DPF.

Funder

National Natural Science Foundation of China

Bureau of Science and Technology Nanchong Municipality

Publisher

Wiley

Reference31 articles.

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