Crude oil washing was made mandatory under MARPOL Annex 1 regulation 13 which states that every crude oil tanker which is 20000 dwt and above must be fitted with COW system for every cargo hold tank. To perform Crude oil washing in a correct and efficient manner every ship must have – • Efficient and approved…
Tank cleaning – The process of removing hydrocarbon vapours, liquids or residues. Tank cleaning may be required for one or more of the following reasons: Responsibility : The Chief Officer is in charge of and shall supervise as the person in charge of the Tank Cleaning, Hydrocarbon Gas (HC) Purging, Gas Freeing & Re-Inerting operations. He shall…
CRUDE OIL WASHING PRECAUTIONS AND PROCEDURES Prior to arrival at the discharge port, the following must be carried out: No C.O.W. is to be started until the Master has satisfied himself that the following has or will be complied with: