School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China.
Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China.
Environ Sci Pollut Res Int. 2023 Apr;30(16):45607-45642. doi: 10.1007/s11356-023-25880-2. Epub 2023 Feb 23.
As countries around the world pay more attention to environmental protection, the corresponding emission regulations have become more stringent. Exhaust pollutants cause great harm to the environment and people, and diesel engines are one of the most important sources of pollution. Diesel particulate filter (DPF) technology has proven to be the most effective way to control and treat soot. In this paper, we review the latest research progress on DPF regeneration and ash. Passive regeneration, active regeneration, non-thermal plasma-assisted DPF regeneration and regeneration mechanism, DPF regeneration control assisted by engine management, and uncontrolled DPF regeneration and its control strategy are mainly introduced. In addition, the source, composition, and deposition of ash are described in detail, as well as the effect of ash on the DPF pressure drop and catalytic performance. Finally, the issues that need to be further addressed in DPF regeneration research are presented, along with challenges and future work in ash research. Over all, composite regeneration is still the mainstream regeneration method. The formation of ash is complex and there are still many unanswered questions that require further in-depth research.
随着世界各国对环境保护的重视，相应的排放法规变得更加严格。废气污染物对环境和人类造成了巨大的危害，而柴油机是污染的最重要来源之一。柴油机颗粒捕集器（DPF）技术已被证明是控制和处理烟尘最有效的方法。本文综述了 DPF 再生和灰分的最新研究进展。主要介绍了被动再生、主动再生、非热等离子体辅助 DPF 再生和再生机理、发动机管理辅助的 DPF 再生控制以及不受控制的 DPF 再生及其控制策略。此外，详细描述了灰分的来源、组成和沉积，以及灰分对 DPF 压降和催化性能的影响。最后，提出了 DPF 再生研究中需要进一步解决的问题，以及灰分研究中的挑战和未来工作。总之，复合再生仍然是主流的再生方法。灰分的形成复杂，仍有许多悬而未决的问题需要进一步深入研究。
