Cost-benefit analysis of ships NOx Emission Control Areas (NECA) along China's coastal area

被引:0
|
作者
Chen, Jihong [1 ,2 ,3 ]
Zhang, Yulong [1 ,3 ]
Shi, Jia [1 ,3 ]
Pang, Chuan [2 ]
She, Siyang [1 ,3 ]
Chen, Xizhi [1 ,3 ]
Xu, Jianghao [1 ,3 ]
机构
[1] Shenzhen Univ, Coll Civil & Transportat Engn, Shenzhen 518060, Peoples R China
[2] Macau Univ Sci & Technol, Ctr Marine Dev, Macau 999078, Peoples R China
[3] Shenzhen Univ, Coll Management, Shenzhen 518071, Peoples R China
关键词
Nitrogen Oxide Emission Control Area (NECA); Cost-benefit analysis; Selective catalytic reduction (SCR); Exhaust gas recirculation (EGR); SHIPPING EMISSIONS; EXHAUST EMISSIONS; ECO-EFFICIENCY; INVENTORY; PORTS;
D O I
10.1016/j.marpolbul.2025.117830
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Shipping, as a crucial pillar of global trade, generates significant amounts of nitrogen oxides (NOx), which profoundly impact the environment and public health. As a major global shipping nation, China faces severe challenges in NOx emissions reduction. This study constructs a bottom-up emission inventory model using Automatic Identification System (AIS) data and vessel profile databases to evaluate the feasibility and costeffectiveness of implementing NOx Emission Control Areas (NECA) along the Chinese coastline. The results indicate that implementing NECA within 12 nautical miles, 50 nautical miles, and 100 nautical miles reduces NOx emissions by 8.3 %, 12.5 %, and 13.4 %, respectively. Among these, the 100-nautical-mile range achieves the most significant reduction, with a 48.8 % decrease in NOx emissions specifically from ships built after 2016. Among different emission reduction technologies, Selective Catalytic Reduction (SCR) proves to be more costeffective and efficient than Exhaust Gas Recirculation combined with Water Injection (EGR + WIF) for longdistance voyages. In contrast, EGR + WIF demonstrates better economic performance in short-distance voyages and low-load conditions. Cost-benefit analysis reveals that expanding the NECA range to 50 and 100 nautical miles results in cost-benefit ratios of 2.93 and 3.86, respectively, confirming the significant economic and health benefits of this policy in larger areas. Despite high initial costs, the substantial long-term environmental and public health benefits justify the widespread implementation of NECA along China's coastline.
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页数:15
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