Reduction of Greenhouse Gas Emissions from Ships Using Alternative Marine Fuel

Abstract

In order to reduce emissions from shipping, which have a significant impact on the environment and climate change, it is necessary to focus on new alternative marine fuels as soon as possible. Contributing as much as possible to environmental protection, as shipping has a significant impact on greenhouse gas emissions.

The article analyzes the impact of maritime transport on ecological environmental imbalances. The construction of liquefied natural gas (LNG) system and its use are considered. LNGs are comparable to heavy marine fuels (HFOs). Possibilities for the application of this fuel in shipping in the long run are presented as a serious perspective, reducing the negative impact of ships on the environment. The findings show that working with a high-pressure dual-fuel internal combustion engine (VDV) system reduces greenhouse gas emissions (GHG) by up to 21 percent compared to VDVs operating on HFO alone. This engine technology is best suited for large low-speed two-stroke engines used for long-distance sea navigation. In terms of air pollution, gas-powered engines are a very effective means of reducing emissions such as carbon dioxide CO2, nitrogen oxides (NOx) and sulfur oxides (SOx). In order to meet the International Maritime Organisation's (IMO) Tier 3 requirements for nitrogen oxides, it is necessary to use exhaust gas cleaning using selective catalysts (SCR) or exhaust gas recirculation (EGR) itself.