Atmospheric emissions

Air emissions from marine vessels account for 5 to 10% of global emissions from the transport sector.

The basic components of atmospheric emissions are carbon, sulphur and nitrogen oxides formed during the combustion of fuel in ship engines.

Dynamics of carbon dioxide (СО2) emissions, 000’tonnes
Dynamics of nitrogen oxide (NOx) emissions, tonnes
Dynamics of sulphur oxide (SOx) emissions, tonnes

The decrease in CO2 emissions is due to the increase in the use of LNG fuel in 2018 to 12% of the total fuel consumption of the fleet, which generally boosts the energy efficiency of ships.

Energy Efficiency Operational Index (EEOI) is calculated as the total CO2 emissions (in grammes) produced on a voyage per total tonne-miles generated (tonnes carried multiplied by distance travelled).

The table below shows the EEOI calculation for different types of Sovcomflot Group’s vessels operating on voyage (spot) contracts. In this case, fuel for the vessels is procured by the ship owner or fleet operator. A decrease in the EEOI index means a decrease in carbon oxides emissions and, accordingly, in fuel consumption per tonne-mile, which characterises an improvement in the operational performance of the company’s fleet.

EEOI index of Sovcomflot Group’s ships in 2018, grammes/tonne-mile
Type of vessel Standard Actual
Suezmax tankers ≤ 12 8.41
Aframax tankers ≤ 15 11.08
LR2 product carriers ≤ 15 11.56
LR1 product carriers ≤ 16 13.25
MR product carriers ≤ 25 19.53
Handy product carriers ≤ 25 24.59
Panamax bulkers ≤ 12 8.76

The Group is constantly supplementing the fleet with energy efficient and environmentally sustainable, new generation vessels which incorporate innovative technologies, developing a Ship Energy Efficiency Management Plan (SEEMP) for each ship in order to control emissions of hazardous substances from exhaust fumes, and fulfilling EU Council Directive 2012/33/EU on the sulphur content of certain marine fuels, using ship fuel with a reduced sulphur content.

The commissioning of the series of SCF’s new generation vessels, the world’s first Aframax tankers specially designed to run on LNG, has significantly contributed to environmental protection. The tankers of this series have dual-fuel main and auxiliary engines and boilers. These vessels are fitted with Selective Catalytic Reduction technology, which enables compliance with Tier III regulations governing NOx emissions (Annex VI to the International Convention for the Prevention of Pollution from Ships)More detailed information about this series is presented in section 3.2. of this Report, ’Investment activities’.even when running on diesel fuel.

Advantages of operating on LNG are most evident from figures: the reduction of sulphur oxides and soot emissions reaches 100%, nitrogen oxides emissions decrease by 76%, and carbon dioxide emissions — by 27% as compared with power plants running on conventional heavy fuel.
Atmospheric emissions from an LNG-fuelled power plant, tonnes per year