船舶的成本效益分析 沿中国沿海地区的氧化排放控制区 (NECA)
Jihong Chen1, Yulong Zhang2, Jia Shi2
1College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China; Center for Marine Development, Macau University of Science and Technology, 999078, Macao; College of Management, Shenzhen University, Shenzhen 518071, China.
Marine pollution bulletin
|March 25, 2025
概括
在中国沿海实施氧化物排放控制区 (NECA) 显著减少了航运排放. 将NECA扩展到100海里提供了最大的减少,证明对环境和公共健康的利益具有成本效益.
科学领域:
- 环境科学 环境科学
- 海上运输 海上运输 海上运输
- 大气化学 大气化学
背景情况:
- 航运是氧化 (NOx) 排放的主要来源,影响全球贸易,环境和公共卫生.
- 中国是一个重要的全球航运国家,在减少海上活动的氧化物排放方面面临着巨大的挑战.
研究的目的:
- 评估在中国沿海实施氧化物排放控制区 (NECA) 的可行性和成本效益.
- 评估不同NECA范围对NOx减排的影响,并确定最佳策略.
主要方法:
- 使用自动识别系统 (AIS) 数据构建一个自下而上的排放清单模型.
- 整合船舶资料数据库,用于全面的排放分析.
- 评估减排技术,如选择性催化减排 (SCR) 和废气循环再循环与注水 (EGR + WIF) 结合.
主要成果:
- 在12,50和100海里范围内实施NECA将NOx排放量分别减少8.3%,12.5%和13.4%.
- 一个100海里NECA在2016年之后建造的船只中减少了48.8%的NOx.
- 在长途航行中,SCR更具成本效益,而在短途航行和低载荷条件下,EGR + WIF更好.
- 对于50和100海里NECA的成本效益比分分别为2.93和3.86.
结论:
- 将NECA范围扩大到50和100海里提供了显著的经济和公共卫生效益.
- 尽管初始成本,但长期的环境和健康优势证明了在中国广泛实施NECA的合理性.
- 政策建议有利于扩大NECA区域,以最大限度地减少排放和提高成本效益.
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