Development of Parametric Trend Life Cycle Assessment for marine SOx reduction scrubber systems

Abstract

In response to the impending international maritime regulation, MARPOL Annex VI Reg. 14, to curb sulphur oxides (SOx) arising from shipping activities, this paper aimed to evaluate the environmental impacts of the entire life cycle of three different SOx reduction scrubber systems: (1) 'wet open-loop', (2) 'wet closed-loop', and (3) 'wet hybrid'. To achieve this goal, the paper developed 'the Parametric Trend Life Cycle Assessment (PT-LCA)' which was introduced to proceed the extensive analysis for a number of case ship studies and quantify various emissions, such as greenhouse gases (GHG), sulphur oxides (SOx), nitrogen oxides

Decision support methods for sustainable ship energy systems: A state-of-the-art review

“…However, LCA studies are case-specific and therefore, they fail to capture general trends. In this respect, the typical LCA was complemented with a parametric trend analysis for scrubber systems in [57].…”

Mitigation of Ship Emissions: Overview of Recent Trends

“…The washwater treatment system must also prevent nitrate discharges from exceeding the standard (i) associated with 12% NO X removal from the exhaust, or (ii) at 60 mg/L normalized on the basis of 45 m 3 /MWh of washwater, whichever is greater . In addition, closed-loop and open-loop scrubbers were compared using the Lloyd’s Register database of 1565 ocean-going ro-ro ships, in terms of acidification potential (AP), global warming potential (GWP), and eutrophication (EP) . According to the study, the age and power of the vessel emerge as the most important determinants of environmentally impactful SO X scrubbing systems.…”

“…140 In addition, closed-loop and open-loop scrubbers were compared using the Lloyd's Register database of 1565 ocean-going ro-ro ships, in terms of acidification potential (AP), global warming potential (GWP), and eutrophication (EP). 145 According to the study, the age and power of the vessel emerge as the most important determinants of environmentally impactful SO X scrubbing systems. Closed-loop scrubbers outperform their open-loop analogues, with respect to AP and GWP, whereas the opposite is true for EP.…”

“…According to the study, the age and power of the vessel emerge as the most important determinants of environmentally impactful SO X scrubbing systems. Closed-loop scrubbers outperform their open-loop analogues, with respect to AP and GWP, whereas the opposite is true for EP . Furthermore, the toxicity of the washwater from maritime exhaust gas scrubber effluents on marine microorganisms was objectified by monitoring the mortality rate and molting.…”

Comparison of the Economic Performances of Three Sulphur Oxides Emissions Abatement Solutions for a Very Large Crude Carrier (VLCC)

“…SOx emissions are a function of the sulphur content of fuel [17]. Accordingly, reduction of the sulphur content of marine fuels could be an effective way to control the SOx emissions.…”