Page 45: of Maritime Reporter Magazine (May 2006)

May 2006 45

Any 'out of specification' levels were detected by the NalTrak 3200, which is illustrated by a dramatic spiking on the trend graph.

The unit responded rapidly with an automated application of Nalfleet oxy- gen scavenger. The return condensate pH trend graph showed that the con- trolled application of Nalfleet corrosion inhibitor maintained the condensate pH within the target ranges of 8.5 to 9.5.

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Sea Water Scrubber

Installed on Ferry

Krystallon - a joint venture between

BP Marine and Kittiwake - together with

P&O Ferries, recently announced the development and installation of the first

Krystallon sea water scrubber on board a commercial vessel, P&O's Pride of

Kent passenger ferry, which sails on the

Dover to Calais route.

Initial results indicate no measurable

SO2 emissions after the scrubber despite using a 2.0%S fuel.

The Krystallon sea water scrubber test results are not only below the level required by the IMO's SECAs (Sulfur

Emissions Control Areas), which allows emissions of 6g/kW/hr. of SO2, but they may even comply with the more strin- gent in port requirements of the

European Union, which will come into force in January 2010. "P&O Ferries has led the field in sup- porting this pioneering work and has underlined its commitment to environ- mental policy in reducing emissions of

SO2 both at sea and in the ferry ports they use," said Don Gregory, Director,

Environment and Sustainability at BP

Marine. "With SECAs requiring sulfur emis- sions of maximum 1.5 percent, sea water scrubbers may be the cheapest long term solution for vessels spending a significant portion of their time in the

SECA.

Sea water scrubbing from Krystallon enables vessels to reduce sulfur emis- sions without requiring changes of fuel or modification to engine design. The results of our first shipboard installation have been dramatic and even more suc- cessful than we had anticipated.

Although the Pride of Kent was using a two per cent sulphur fuel the initial analysis could not detect any sulfur oxide emissions after the sea water scrubber was installed.

We can therefore conclude that the sea water scrubber will be able to easily meet its design performance criteria of 95 percent scrubbing efficiency."

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Pride of Kent

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