【作者】

Mun Kyu Kim

【摘要】

该论文已在赫尔辛基举行的第28届CIMAC大会上发表，论文的版权归CIMAC所有。Selective catalytic reduction of NOx by urea (Urea-SCR) is a commercially proven and efficient technology to reduce NOx included in diesel engine exhaust. This technology has been widely applied to various marine vessels with 2-stroke diesel engine to meet the stringent air pollution regulations including IMO Tier III. In order to overcome the installation constraint of SCR system in the engine room, low pressure SCR (LP SCR) system which is installed at the downstream of the engine and turbochargers, especially in the funnel of the vessel has been developed. LP SCR system of 2-stroke engine is operated under low temperature condition at the temperature below 250 oC due to the loacation of the installation as described above. The effective decomposition of urea to NH3 as a reducing agent is important to achieve the required performance of the SCR catalyst, especially at low temperature condition of LP SCR system. In order to maximize the conversion of urea to NH3, a new urea decomposition chamber has been designed by using a urea decomposition catalyst in the present study.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

2

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