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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter May 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

Design Concept: Zero Emissions Cargo Ship

The designs for a multi access zero emissions cargo ship will be unveiled at the 5th Natural Propulsion Seminar in Wageningen, Netherlands, on Tuesday, May 24. The

First Cruise Company Fined under Australia’s New Fuel Rules

Australia’s NSW Environment Protection Authority (EPA) has fined Carnival PLC $15,000 after one of its P&O Cruises ships, the Pacific Jewel, breached new low sulfur fuel regulations in Sydney Harbour.

HUMMEL LNG Hybrid Barge Begins Second Season

For over one year the HUMMEL has been contributing to improved air quality at the port of Hamburg. Becker Marine Systems’ LNG Hybrid Barge will also be supplying

 
 
Maritime Contracts Maritime Standards Naval Architecture Navigation Offshore Oil Salvage Ship Electronics Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | 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: 0.0698 sec (14 req/sec)