Maritime Emission Manager Course

If the land-based side of marine transport operations is taken into account, it would include cargo handling equipment, stationary power sources, locomotives and heavy-duty trucks operating within the port area. These are non-vessel related emissions from ports. To reduce emissions in such cases, the following may be considered

Clean Fuel: Change to advanced clean diesel fuel, such as low or ultra-low-sulphur diesel (LSD), emulsified diesel, bio-diesel, compressed natural gas, liquefied natural gas, liquefied petroleum gas (propane, which requires a dedicated engine) and so on. All of these will provide direct benefit to port air quality and at the same time some reduction in GHG emissions.

Technology Retrofit: Installation of “after treatment” devices on existing diesel engines such as diesel particulate filters, oxidation catalysts, closed crankcase ventilation, selective catalytic reduction, lean NOx catalyst, exhaust gas recirculation and so on. Trucks could be retrofitted with some of these technologies.

New technologies: Use of hybrid-electric technologies as replacements for pure diesel engine vehicles and equipment.

Operation management: This could include a large number of measures that helps to reduce fuel consumption and emissions

Technology upgrade: This option relates to retaining the engines but opting for more advanced available engine controls, fuel additives and after-treatment emission control technologies such as diesel oxidation catalyst, diesel particulate filter and selective catalytic reduction

Engine Replacement: Replacement of a harbour craft engine is not an easy option as it normally will require all sort of different auxiliary machinery, space and fuel requirements. However, retrofit of engine can be an important consideration for harbour crafts in view of changing technologies, move to hybrid electric options as well alternative fuels. Replacing main-propulsion engines with cleaner engines will provide great emission benefits that compound over the remaining life of the equipment. For harbour craft, this can be significant because the total operating life can be up to 30-40 years (MariEMS 2017).