Measurements of abatement of particles and exhaust gases in a marine gas scrubber
Artikel i vetenskaplig tidskrift, 2016

Measurements of exhaust gases from a marine engine equipped with an open-loop wet scrubber using seawater for sulphur dioxide (SO2) abatement are reported. The scrubber reduces the SO2 emissions effectively to levels corresponding to <0.1% S in the fuel (the level that applies to sulphur emission control areas from 2015). The scrubber also reduces the emissions of particulate matter by mass by 75%. The impact on the number of particles is studied for the total particle number and the solid fraction. The total number of particles is reduced by about 92% and the solid fraction by 48% in the scrubber indicating most effective abatement of volatile particles. Also, the content of polycyclic aromatic compounds in the exhaust is significantly reduced by the scrubber. The captured SO2 gives a low pH and high sulphate content in the scrubber water. The reduction in particulate matter is of the same order as what is obtained with a fuel switch from heavy fuel oil to marine gas oil.


Seawater scrubber

polycyclic aromatic compounds

particulate matter

black carbon


Erik Fridell

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

Kent Salo

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

Proceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment

1475-0902 (ISSN)

Vol. 230 1 154-162


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