World’s First SCR NOx Removal System.

By Keith Henderson at June 23, 2011 08:05
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Completed in March of this year by the Oshima Shipbuilding Co., Ltd., Japan, the double hull bulk coal carrier MV Initial Salute is the first ship in service fitted with selective catalytic reduction of nitrogen oxides removal equipment. The 88,100 dwt ship with an LOA of 770 ft (235 m), is powered by a single slow speed, two stroke, MHI 6UEC60LSII rated at 11,000 kW at 105 rpm. Low-temperature exhaust gases below 570 degF (300 degC) produced by a slow speed two stroke engine were feared to cause contamination the catalysts. Improvements made to the equipment reduced the catalyst poisoning to a minimum level by suppressing the sulfur in the fuel oil to approximately 0.1 percent. The on board tests produced results that meet Tier III NOx emission controls stipulated by IMO. The results were so successful that it has been decided to extend the tests and collect more data over a longer period during normal operational service. [More]

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