船用柴油机陶瓷颗粒过滤器用非热等离子体诱导自由基连续再生的中试试验

M. Okubo, T. Kuwahara, T. Kuroki, Keiichiro Yoshida, K. Hanamoto, Kazutoshi Sato, Toshiaki Yamamoto
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引用次数: 2

摘要

随着有关柴油发动机排放的法规越来越严格,仅使用改善燃烧的技术很难满足这些新要求。因此,需要更有效的后处理技术,特别是对颗粒物(PM)。虽然陶瓷柴油微粒过滤器(DPF)在汽车上的应用是一项领先的技术,但对于使用含硫的船用柴油(a重质燃料油)的船用柴油机来说,它在除灰或再生方面仍然存在问题。为建立船用柴油机非热等离子体DPF再生方法,进行了实验室和中试试验。只有当等离子体打开并在320℃下实现再生时,压差才会减小。在不同的发动机运行条件下,确定了再生所需的臭氧量,并阐明了再生的基本特征。所需的等离子体能量约为船用发动机发电功率的5%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pilot-scale experiments of continuous regeneration of ceramic particulate filter in marine diesel engine using nonthermal plasma-induced radicals
As the regulations governing diesel engine emissions become more stringent, it is difficult to fulfill these new requirements using only techniques that improve combustion. More effective aftertreatment technology is thus needed particularly for particulate matter (PM). Although the use of ceramic diesel particulate filters (DPF) is a leading technology in automobiles, it still presents a problem in terms of soot removal or regeneration for marine diesel engine operated with marine diesel oil (A-heavy fuel oil) including the sulfur. In the present study, to establish a nonthermal plasma DPF regeneration method for marine diesel engines, laboratory-scale and pilot-scale experiments are carried out. The pressure difference decreased only when the plasma is turned on and that regeneration is realized at 320°C. The amount of ozone required for regeneration is determined under various engine-operating conditions, and basic characteristics of regeneration are clarified. The required plasma energy is approximately 5% of the generated power of the marine engine.
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