Reducing sulfur and nitrogen emissions in shipping economically

Reducing sulfur and nitrogen emissions in shipping economically
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经济地减少航运中的硫和氮排放

DOI:
10.1016/j.trd.2020.102641
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发表时间:
2021
期刊:
Transportation Research Part D
影响因子:
--
通讯作者:
Jingmiao Zhou
Jingmiao Zhou
中科院分区:
其他
文献类型:
--
作者:
Yuzhe Zhao;Yujun Fan;Kjetil Fagerholt;Jingmiao Zhou

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由于对开环洗涤器的禁令越来越多,氮排放控制区(Necas)的曙光以及目前燃料价格的下跌,减排技术的选择变得复杂起来。本文建立了一个既满足硫限制又满足第三级氮限制的最优技术选择模型,并将其应用于三种支线服务。结果表明,根据不同的燃油价格和船舶及航运服务的特点,最经济的选择是安装废气再循环(EGR)系统,包括加或不加洗涤器。洗涤器安装更适合于新船或剩余寿命与洗涤器相同的船舶。然而,对于规避风险的船东,建议安装不带洗涤器的EGR,因为它总是最优的或接近最优的。该文件还指出,扩大对领海区域内开环洗涤器的禁令只会对许多支线服务的技术选择产生轻微影响。
The abatement technology choices are complicated by the growing ban on open-loop scrubbers, the dawn of nitrogen emission control areas (NECAs) and the current drop of fuel prices. This paper develops a model to select the optimal technology choice that meets both sulfur limits and Tier III nitrogen limits, and applies it to three feeder services. The results show that the most economic choice is installing exhaust gas recirculation (EGR) with or without scrubbers, depending on different fuel prices and characteristics of ships and shipping services. Scrubber installation is more suitable for a new ship or the one with remaining lifespan equaling the lifespan of scrubbers. However, installing EGR without scrubbers is recommended for risk-averse shipowners as it is always optimal or nearly optimal. The paper also indicates that expanding the ban on open-loop scrubbers within territorial water areas only slightly impacts the technology choices for many feeder services.
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