Experimental study on the emission characteristics and performance of PNA coupled aftertreatment system with different catalyst loading

Kang, Lulu; Lou, Diming; Zhang, Yunhua; Fang, Liang; Zhao, Yue

doi:10.1016/j.fuel.2023.128597

Cited by 5 publications

(1 citation statement)

References 47 publications

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“…The coupling diagram of EHC and DOC is shown in Figure 11. Kang et al [85] took a diesel engine integrated with a passive NO X absorber (PNA), EHC, DOC, and SCR catalyst integrated into a DPF (SDPF) and SCR as the research object to compare the effects of different catalyst loads on PNA emission characteristics. The results showed that compared with coupling EHCs before DOC, the NO X conversion rate increased by 16.61% during cold start by coupling EHCs after DOC.…”

Section: Aftertreatment Technologiesmentioning

confidence: 99%

Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review

Zhang

Huang

et al. 2023

Energies

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Reducing diesel engine emissions under cold start conditions has become much more valuable as environmental issues become more important. Regarding diesel engine emissions under cold start conditions, this review summarizes the emission mechanisms and specifically focuses on the research progress of four reduction strategies: biodiesel utilization, intake heating, injection optimization, and aftertreatment technologies. In general, adding biodiesel and Di-Ethyl-Ether (DEE) could provide the benefit of reducing emissions and maintaining engine performance. Intake heating and appropriate injection strategies could also effectively reduce emissions under cold start conditions. Unlike normal operating conditions, lean nitrogen oxide traps (LNT) or electrically heated catalysts (EHC) should be utilized in the aftertreatment of diesel engines to minimize emissions under cold start conditions. By offering the valuable information above, this review could be a helpful reference in reduction strategies for diesel engines under cold start conditions in both academia and industry.

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Section: Aftertreatment Technologiesmentioning

confidence: 99%