Abstract
In September 2011 Arctia Offshore Ltd. was awarded a contract with major oil company to assist their project in the Alaskan waters with our multipurpose icebreakers MSV Fennica and MSV Nordica (Figure 1). Customer campaign is carried out in environmental sensitive area and rules in Chukchi Sea and Beaufort Sea are much higher than MARPOL rules. US EPA (Environmental Protection Agency) is monitoring customers air permit and NOx & SOx limits. In order to meet tight limits we found that selective catalytic reduction (SCR) and using Ultra Low Shulphur Diesel (ULSDO) is the best option. This paper will describe the design, installation and user experience of SCR system onboard multipurpose icebreakers Fennica and Nordica.
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