Abstract: Starting from the investigation of domestic ship owners, the application of alternative fuels to international ships has been analyzed in view of the concerns of ship owners, such as fuel supply, main engine technology and fueling infrastructure. The results show that LNG, as the most mature alternative fuel at present, possesses great potential for further development in the short and medium term, while methanol and ammonia have increasing share in the medium and long term. It is predicted that the proportion of ocean-going alternative fuel powered ships in 2030 and 2040 is only 5% and 11%. In order to cope with the general trend in the future, it is necessary to accelerate the development of the methanol and ammonia internal combustion engines suitable for ocean-going ships, and launch demonstration projects of low-carbon synthetic fuels such as ammonia and methanol as soon as possible, as well as simultaneously develop corresponding innovative ship types to achieve independent control of the main engine and fuel supply.

Key words: international ship, alternative fuel application forecast, fuel supply chain, power device, innovative ship type

摘要： 该文从对国内船东调研情况入手,针对燃料供应、主机技术和加注基础设施等船东担忧的问题,分析了国际航行船舶应用替代燃料的情况。结果表明：LNG作为目前最成熟的替代燃料在中短期内有较大发展空间,甲醇和氨在中远期的份额逐步增加;预测2030年和2040年远洋替代燃料动力船占比仅为5%和11%;为应对未来的大趋势,国内需加快发展适用于远洋船舶的甲醇、氨内燃机,尽快推出氨、甲醇等低碳合成燃料的示范项目,并且同步研发相应创新船型,实现主机、燃料供应自主可控。

关键词: 国际航行船, 替代燃料应用预测, 燃料供应链, 动力装置, 创新船型