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Average emissions and energy use of a chemical tanker in 2016
Tanker, chemicals CO HC NOx PM CH4 N2O SO2 CO2 CO2e Fuel
consumption
Energy [MJ]
[g/ship km]   268 88 2 208 48 10.7 2.9 70 117 040 118 161 37 491 1 515
[g/tkm] 0.13 0.042 1.1 0.023 0.0051 0.0014 0.034 56 56 18 0.72
Power Bulk freight weight
of DWT
Specific consumption
GT DWT Main engines Speed Distance Main engines Aux. engines
[t] [t] [kW] [knots] [km] [%] [g/kWh] [g/kWh]
5 000 7 000 4 000 13 2 000 30% 210 210
Emission factors include both directions, thus return trip need not to be calculated
g/ship km = grams per ship kilometre (the transport of the entire ship over one kilometre)
g/tkm = grams per tonne kilometre (the transport of one net tonne over one kilometre)
DWT = deadweight tonnage = the sum of the masses of cargo, fuel, fresh water, ballast water, provisions, passengers and crew
CO = carbon monoxide, HC = total hydrocarbons (including methane CH4), NOx = nitrogen oxides, PM = particulate matter, CH4 = methane, N2O = nitrous oxide, SO2 = sulphur dioxide, CO2 = carbon dioxide, CO2e = equivalentic CO2 (CH4 factor 25, N2O factor 298), MJ = megajoule 
VTT Technical Research Centre of Finland Ltd
LIPASTO unit emissions database
Last updated 6.7.2017