NO<sub>2</sub>-Assisted Regeneration Performance Enhancement of Catalyzed Diesel Particulate Filters

LiZhijun,; Caidong,; Heli,; CaoLijuan,; LiZhiyao,; Mengyu,

doi:10.1089/ees.2018.0477

Cited by 7 publications

(1 citation statement)

References 28 publications

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“…For example, engine-based heating measures [58,59] or microwave-regeneration-based [60,61] active regeneration include post injection in the DOC [62,63] and an extra heating device [64,65]. Passive regeneration includes NO 2 oxidation-assisted regeneration [66,67], catalytic diesel particulate filters, (CDPFs) (Figure 3b) [68,69], etc., but requires no energy input. A lot of heat is released during the regeneration (Figure 3c) [70,71], which causes the DPF to age and deteriorates the efficiency of SCR at the downstream side of the DPF [72,73].…”

Section: Dpfmentioning

confidence: 99%

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

Wu,

Feng,

et al. 2024

Energies

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The DOC (diesel oxidation catalyst), DPF (diesel particulate filter), SCR (selective catalytic reduction), and ASC (ammonia slip catalyst) are widely used in diesel exhaust after-treatment systems. The thermal management of after-treatment systems using DOC, DPF, SCR, and ASC were investigated to improve the efficiency of these devices. This paper aims to identify the challenges of this topic and seek novel methods to control the temperature. Insulation methods and catalysts decrease the energy required for thermal management, which improves the efficiency of thermal management. Thermal insulation decreases the heat loss of the exhaust gas, which can reduce the after-treatment light-off time. The DOC light-off time was reduced by 75% under adiabatic conditions. A 400 W microwave can heat the DPF to the soot oxidation temperature of 873 K at a regeneration time of 150 s. An SCR burner can decrease NOx emissions by 93.5%. Electrically heated catalysts can decrease CO, HC, and NOx emissions by 80%, 80%, and 66%, respectively. Phase-change materials can control the SCR temperature with a two-thirds reduction in NOx emissions. Pt-Pd application in the catalyst can decrease the CO light-off temperature to 113 °C. Approaches of catalysts can enhance the efficiency of the after-treatment systems and reduce the energy consumption of thermal management.

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Section: Dpfmentioning

confidence: 99%

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

Wu,

Feng,

et al. 2024

Energies

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Effects of Catalyst Structural Parameters on the Performance of Exhaust Gas Aftertreatment System of Diesel Engines

Qiang

Peng

Yuan

et al. 2022

Int.J Automot. Technol.

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Evaluating the performance of particle oxidation catalyst for construction equipment

Mustaqiman,

Santos,

Lin

et al. 2023

Atmospheric Pollution Research

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NO₂-Assisted Regeneration Performance Enhancement of Catalyzed Diesel Particulate Filters

Cited by 7 publications

References 28 publications

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

Effects of Catalyst Structural Parameters on the Performance of Exhaust Gas Aftertreatment System of Diesel Engines

Evaluating the performance of particle oxidation catalyst for construction equipment

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NO2-Assisted Regeneration Performance Enhancement of Catalyzed Diesel Particulate Filters

Cited by 7 publications

References 28 publications

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

Effects of Catalyst Structural Parameters on the Performance of Exhaust Gas Aftertreatment System of Diesel Engines

Evaluating the performance of particle oxidation catalyst for construction equipment

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Product

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NO₂-Assisted Regeneration Performance Enhancement of Catalyzed Diesel Particulate Filters