ABE considered the interconnection between the acoustic, vibrational and chemical emissions which characterise both merchant ships and cruise ships, generated by the engine structure and the burnt gases, with the aim to research design methodologies and abatement technologies with the purpose to offer the sector a system of new services and products. With regard to the environmental impact, a combined catalytic scrubber technology (filter to reduce emissions) was developed with the aim to simultaneously break down sulfur and nitrogen oxides, particulates and hydrocarbons emitted without the use of SCR systems (chemical processes of emissions abatement).