Paper
Development of Reduction Technology of Marine Exhaust Emissions with Corona Discharge and Ca (OH)2
2013 Volume 48 Issue 2 Pages 260-266
Details
2013 Volume 48 Issue 2 Pages 260-266
Emission regulations for ships have become increasingly strict. In 2016, Tier 3 regulations will be implemented by the International Maritime Organization (IMO) which makes the reduction of NOx emissions in Emission Control Areas (ECA) by 80% obligatory. Thus, there is a pressing need to develop emission control technologies in order to meet these stringent regulations. Generally, in exhaust emissions treatment, there are trade-off problems to be solved. The aim of this research is to simultaneously reduce CO2, NOx, PM, and SOx. The authors developed a system in which an emissions charger and electrostatic water scrubber using corona discharge are used with Ca(OH)2 solution. PM can be collected using static electricity by spraying electrostatic water. O3 emanating from the corona discharge can convert NO into NO2, and NO2 and SOx can dissolve well in water. In addition, Ca(OH)2 can detoxify waste water generated by aftertreatment. Using this emission reduction technique, NOx, SOx and CO, and PM were reduced by 75 %, 80 %, and 100%, respectively.
