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Friday, April 20, 2018

REQUIREMENTS FOR GAS RETURN SYSTEMS ON SHIPS, AS OF 1 JANUARY 2001, IN GOTHENBURG OIL HARBOUR

Sweden has ratified MARPOL 73/78 Annex VI. This means that all ships which load volatile products, e.g motorgasoline, in Swedish waters shall be equipped with a vapour return system. This is so that the ships can transport these gases to a vapour-recovery-unit on land (VRU).

Demands regarding equipment etc.

IMO’s Circular, MSC/Circ. 585, 16 April 1992, specifies the demands concerning equipment procedures, and training of personnel.

Important aspects in Gothenburg (over and above) the recommendations

The speed at which a ship can be loaded must be the same when connected up to the VRU. There shall be gas return connection manifolds on both sides of the normal loading and unloading manifolds for liquids. On ships that can load several products, it shall be possible to separate emitted vapours, so that only volatile vapours are transported to the VRU.

Classification, ISGOTT and OCIMF recommendations

This group of classifications usually includes check lists. These can be used to ensure that ships meet the demands for transporting vapours to shore. ISGOTT and OCIMF also have recommendations concerning the equipment and its application, which will be included in the operational instructions.

(Source: Gothenburg Port Authority)

This article can also be found under the Technical Section