{"id":13475,"date":"2021-05-05T15:25:45","date_gmt":"2021-05-05T13:25:45","guid":{"rendered":"https:\/\/eneria.pl\/blog\/nowe-regulacje-dot-zanieczyszczen-na-morzu\/"},"modified":"2026-02-02T17:30:52","modified_gmt":"2026-02-02T16:30:52","slug":"nowe-regulacje-dot-zanieczyszczen-na-morzu","status":"publish","type":"post","link":"https:\/\/eneria.pl\/en\/blog\/nowe-regulacje-dot-zanieczyszczen-na-morzu\/","title":{"rendered":"New regulations on marine pollution"},"content":{"rendered":"

Caring for the environment is among the most important issues discussed around the world. Improvements in machinery largely focus on reducing or completely eliminating its negative effects on the environment.<\/p>\n

The changes apply to machines operating on land, in the air and, of course, at sea.\u00a0One common gaseous pollutant from vessels is nitrogen oxide (NOx).<\/strong>\u00a0The reduction of pollution from this gas is subject to international regulations.<\/p>\n

In accordance with the International Convention for the Prevention of Pollution from Ships (MARPOL – precisely, with Rule 13 of Annex VI to the Convention), nOx emission limits are set for diesel engines above 130KW (IMO I, IMO II and IMO III).<\/strong>\u00a0They depend on the rated speed of the motor. The current global limit is IMO II. In turn, The IMO III limit applies to ships built after 1 January 2016 and in NOx emission control areas. Until the end of last year, the NOx Emission Control Convention applied to North American areas and the US Caribbean Sea.<\/p>\n

The year 2021 brought big changes because, from 1 January, the Baltic Sea and the North Sea emission areas also became NOx emission control areas.<\/p>\n

NOx emission control aresa<\/h2>\n

\"\"<\/p>\n

Strefy Kontroli Emisji NOx ( ECA NOx)\u00a0<\/span><\/p>\n

\u00a0\u017ar\u00f3d\u0142o: www.egcsa.com<\/span><\/p>\n

NOx Emission Control Areas ( ECA NOx)<\/p>\n

Source: www.egcsa.com<\/a><\/p>\n

Consequences of introducing the Baltic and North Sea into NOx emission control areas<\/strong><\/h3>\n

The introduction of the North Sea and Baltic Sea – where Europe’s largest ports are located – into the NOx emission control area means that all new ships operating globally will have to be equipped with IMO III-compliant engines. IMO III NOx emissions, which are about 5 times lower compared to IMO I, require internal combustion engine manufacturers to implement additional emission reduction technologies.<\/p>\n

IMO Standard III – who is not affected?<\/strong><\/h3>\n

It should be noted that the emission level requirement does not apply to vessels less than 24 meters in length used and designed for recreational purposes and also vessels with a total power of less than 750 KW. Such ships cannot meet the standard due to design or construction constraints.<\/p>\n

Caterpillar \u2013 elimination of nitrogen oxides in exhaust gases<\/h2>\n

One of the technologies used is Selective Catalytic Reduction<\/strong> (SCR).<\/strong> This is the most effective method of eliminating nitrogen oxides in the exhaust gas. The agent that reduces nitrogen oxides is an aqueous urea solution ( Diesel Exhaust Fluid – DEF). It is sprayed directly into the exhaust stream before the reactor, where it breaks down into ammonia and carbon dioxide. Ammonia reacts with nitrogen oxides to form free nitrogen and water vapour.
\nAccording to IMO regulations,<\/strong> each engine on a marine vessel subject to IMO regulations should have technical documentation identifying critical engine components affecting NOx emissions. Such critical elements are:<\/p>\n