Gibdock in Norbulk exhaust scrubber project
Gibraltan shipyard Gibdock is to retrofit exhaust gas scrubbers for five vessels operated by ship management major Norbulk Shipping and owned by global shipping group Vroon.
The contract represents Gibdock’s debut in specialised scrubber work and is the yard’s biggest single assignment this year. The project, which also includes special survey drydocking of all five vessels, is also claimed to be the first ship-series SOx abatement technology retrofit win for any southern European yard.
“We are the first yard in the region to win a major exhaust scrubber project,” said Richard Beards, Gibdock managing director. “Our ideal location means that we are always attractive for owners considering this area. Gibdock’s competitiveness, high quality workmanship and on-schedule redelivery has led to this breakthrough deal, which opens a new chapter in the industry’s EGS installation work options.”
Gibdock’s workload includes the 37,500 dwt product tanker Great Eastern, the third of the five vessels being fitted with PureSOx main engine, auxiliary engine and boiler EGS units from Alfa Laval. The hybrid PureSOx system removes over 98% of SOx emissions from exhaust gases and up to 80% of particulates.
EGS installation work onboard Great Eastern included 90 tonnes of newly fabricated steel, the laying of 12,386m of electrical cabling and 1,134m of glass-reinforced epoxy pipes involving 800v flanges and elbows. Special survey work required a hull washing, spot grit-blasting and coating job, overhauling of sea valves, propeller withdrawal, bonding of stern seals, rudder clearances, bow thruster overhauling, windlass winch bearing renewal, overhauling of boiler safety valves, pipe work, insulation works and various other routine dry-dock works.
The survey tasks took place at the same time as EGS installation, with the ship redelivered on schedule and on budget in 20 days. Beards noted that the time taken for redelivery to Norbulk has been shortened as projects have progressed.
Gibdock undertakes prefabrication for smaller blocks in its workshops, with transfer to the new Pad 1 area allowing further structural and assembly work to be completed alongside Drydock 1 in a timely fashion for drydocking. “Pad 1 was pivotal in optimising workflow,” said John Taylor, Gibdock operations director. “No other regional yard has a comparable purpose-built zone for EGS foundation and structural work before vessels arrive.”
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