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An Assessment of the Most Sustainable Marine Fuel Based on the Present Regulatory Framework and Future Trends

Journal of Shipping and Ocean Engineering 2022年第2期12卷 43-52页

作者： Michael Boviatsis Dionisios Polemis Aristotelis Alexopoulos Department of Maritime Studies University of PiraeusPiraeus 18534Greece Directorate of Environment Municipality of Palaio FaliroArtemidos&Laki Santa 17561Greece

Since the decrease of the global sulfur limit from 3.5%to 0.5%by the IMO(International Maritime Organization)on January 1,2020,the shipowners and carriers are obliged to elect between the three available options to comply with the present regulatory *** first available option is utilising exhaust gas cleaning systems called“scrubbers”.By using these filters,the vessels can burn high sulfur *** contrast,the sulfur surplus and other dangerous chemicals are evaporated by spraying alkaline water via an open-loop,closed-loop or hybrid *** other option is using LNG(liquefied natural gas)as fuel,a viable option connected with the constant expansion of the global LNG supply infrastructure ***,this network is yet in its developing ***,the majority of the LNG vessels are primarily coastal vessels operated in European waters,and many supply ports worldwide have not yet developed full-scale LNG supply facilities and proper equipment is not yet ***,ammonia is another potential candidate as zero carbon fuel,but its utilization as a sustainable marine fuel in marine industry is currently under ***,at present the final option is the utilisation of conventional fuels,low on sulfur emissions,such as MGO(marine gasoil)and ULSFO(ultra low sulphur fuel oil).The primary issue is the availability and the cost of those fuels,with the refiners being unable to forecast if they should produce more low-sulfur fuels to meet potentially higher *** the comparative analysis of those options their viability will be evaluated,and a thorough proposal for their utilisation will be provided.

关键词： IMO 2020 Low Sulfur Cap scrubbers LNG fuel MGO ULSFO Ammonia

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