Nowadays around 80-90% of global trade is performed via maritime shipping and as indicated by the International Maritime Organization, by 2050 this number could increase up to 115% with respect to 2020 levels. The shipping sector is responsible for around 3% of the annual global greenhouse gas emissions on a carbon dioxide equivalent basis and approximately 13% and 12% of the annual global nitrogen oxides and sulfur oxides emissions, respectively. Considering that about 99% of the energy demanded by the international shipping industry is met by fossil fuels, the utilization of alternative fuels is needed to mitigate the CO2 and GHG emissions.