Study on a Wet SOx Scrubber in a Marine Diesel Engine

Abstract

This paper presents the study on a wet SO_x scrubber in a marine diesel engine and the results of analysis of the scrubber about components and their actions. Models of open cycle seawater scrubber and closed cycle system with alkaline additives were set up using theory of chemical kinetics based on desulfurizing tests. Using the model in the paper and combined with CFD, simulations of a marine desulfurizing scrubber was done, especially focused on the structure of scrubber, sea water flow and fresh air flow on performance of the scrubber and alkaline materials added to SO_x scrubber. This paper also discusses means to reduce scrubber sea water and to collect particles in exhausted seawater. The study in this paper gives a method of reducing SO_x emission from a marine diesel engine, which satisfied the limitation of IMO regulations.