The gas scrubber installed on Zaandam.
low sulphur fuel premium is above $50 a tonne, then it’s worth fitting a scrubber.” If the adoption of the Annex VI
amendments has acted as a spur to the concept, the manufacturers have also taken steps to give the concept the best possible spin. Originally set up a year ago and prompted in part by the bad publicity exhaust gas scrubbing was receiving from non-governmental organisations and the press, the Exhaust Gas Cleaning Systems Association was initially intended as a forum for shared standards. Now under the leadership of former
miles of land is “a huge economic driver to do something,” he says. The distillate option remains, but
scrubber-makers point out that distillates still produce sooty particulates and the fuel itself is arguably harder to clean up in the event of a spill. So why has there been no rush to
scrubbing thus far? “Everyone is watching the Zaandam,” says Mr Leigh-Jones. “Until that is signed off and everybody is 100% happy, the rest of the industry are not going to do anything but we’re pretty close to that now”. He admits the experience has been
harder than expected – not least because of needing to work with the politics of the issue. “Te emotions out there are strong but sometimes ill-informed. To handle that takes sensitivity and HAL has been pretty supportive.” Te technical experience on
Zaandam has been about scaling up for high electrical demand from a floating hotel. Krystallon’s scrubber is attached to one of the ship’s five main engines and the next challenge will be how to design a system for the concentrated draw of a 70mW modern containership. In the wider market, Krystallon
has talked to “every major shipyard in Japan and Korea”, and Mr Leigh-Jones is cautiously optimistic that with cancellations threatening profitability, the yards might see scrubbers as a value-add to future orders. The cost has fallen too – by about
40% in two years - though Krystallon is seeking a large industrial partner for additional leverage. “It’s never going to be a significant part of the cost [of a newbuilding] – perhaps $2million- $3million but never $100,000. But if the
BRIGHT NEW VISION
THE The Naval Architect February 2009
BP Marine director of sustainability Don Gregory, the original mission has been trimmed back to the core issue of promoting the interests of the manufacturers. The association includes Wärtsilä,
MES, Krystallon and Clean Marine and hopes to add Aalborg soon. Outreach is centring on spreading awareness of the concept and its effectiveness among port authorities, thereby answering the concerns of owners. “The focus is on getting across the story that shipowners should not be afraid to put them on for fear they can’t be used in certain ports. Tere should be no reason not to scrub in port,” says Mr Gregory. He admits the ‘perceptual battle’ still
needs to be fought from time to time but says the focus on cleaning and recirculating wash water belies what has already been achieved on SOx reduction. “Being able to retrieve 90% of what comes out of the funnel is doing really well.” NA
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