Alfa Laval’s PureBallast Treats Tankers

Tuesday, June 02, 2009

PureBallast, Alfa Laval’s chemical-free system for ballast water treatment developed in cooperation with Wallenius Water, will be installed aboard two new bitumen tankers for Nynas, a supplier of specialty petroleum products. It is the first ballast water treatment installation adapted to the hazardous tanker environment. Nynas, a specialist in naphthenic oils and one of Europe’s leading suppliers of bitumen, has chosen PureBallast for two bitumen tankers to be built at China’s Wuhan Nanhua Huanggang Jiangbei Shipyard.

Scheduled for delivery in 2010, the Nynas vessels will each have a ballast tank capacity of 2150 m3 and a treatment system flow of 500 m3/h. But in light of their cargo and the resulting gas risks on board, the vessels will have their PureBallast systems above deck rather than below. The ballast water treatment solution, which involves a specially designed enclosure, is the first to be certified for use aboard petroleum tankers.

Even after Nynas had chosen PureBallast, the system had to be adapted to the hazardous environment of a bitumen tanker. As well as releasing gases, bitumen is normally transported at a temperature between 160-180ºC but vessels can carry products up to a temperature of 250ºC. Such conditions have thus far prevented ballast water treatment on tankers, since no ballast water treatment system has yet been classified as EX-proof.

To facilitate adaptation and simplify dialogue with the shipyard, Alfa Laval spent considerable time working with Nynas and the Shipyard. Besides travelling to China to present the PureBallast technology, Alfa Laval representatives arranged for both parties to visit PureBallast installations currently underway.

The finished design for the Nynas tankers places PureBallast in a pressurized structure on deck, rather than in the engine room. With a double-door construction that acts as an airlock and an over-pressurized ventilation system, the housing eliminates the need for an EX-proof treatment system, allowing PureBallast to be certified by Bureau Veritas for use in this environment.

(www.alfalaval.com)

Maritime Reporter June 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

MOL Ship Management Earns Energy/Enviromental Certifications

First company to receive ISO50001 certification from Nihon Kaiji Kyokai.   MOL Ship Management Co., Ltd. (MOLSHIP), a core ship management company in the corporate group headed by Mitsui O.

Pumps Reach Sinking Shrimper Just in Time

A commercial fishing vessel from Brownsville is slowly making its way back to port, thanks to some quick actions by its crew and Coast Guard units, informs the US Coastguard,

Orica Fined Heavily for Australian Pollution Incidents

Orica Australia Pty Ltd has been convicted and penalised $768,250 in relation to charges brought by the NSW Environment Protection Authority (EPA) for pollution

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Pod Propulsion Salvage Ship Electronics Ship Repair Ship Simulators
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1557 sec (6 req/sec)