What is a pre MARPOL tanker?
The committee has used the term ”pre-MARPOL tanker” to describe vessels that carry ballast in cargo tanks and do not, for the most part, have segregated ballast tanks. The term “MARPOL tanker” is used to describe vessels that meet the segregated ballast requirements of MARPOL 73 or MARPOL 73/78.
What are the classification of tankers?
Breakdown of Various Classifications of Oil Tankers
| Size / Classification | Deadweight Tonnage (DWT) | Approx # of vessels[ii] |
|---|---|---|
| Aframax | 75,000 – 120,000 | ~900 |
| Suezmax | 120,000 – 180,000 | ~600 |
| VLCC | 200,000 – 320,000 | 474 |
| ULCC | 320,000+ | 4056 |
What is MARPOL prewash?
Chemical tankers which have discharged cargoes that presents a major hazard to the marine environment (category X substances) are required to carry out a mandatory prewash before leaving the port.
What is the difference between clean ballast and segregated ballast?
Ballast water contained in segregated ballast tanks never come into contact with either cargo oil or fuel oil. Clean ballast tanks. To have so-called dedicated clean ballast tanks (CBT) means that specific cargo tanks are dedicated to carry ballast water only.
What is VLCC and ULCC?
VLCC and ULCC “Supertankers” are the largest oil tankers, and the largest mobile man-made structures. They include very large and ultra-large crude carriers (VLCCs and ULCCs – see above) with capacities over 250,000 DWT. These ships can transport 2,000,000 barrels (320,000 m3) of oil/318,000 metric tons.
What is IMO 2 tanker?
A type 2 ship is a chemical tanker intended to transport chapter 17 products with appreciably severe environmental and safety hazards which require significant preventive measures to preclude an escape of such cargo.
What are the two types of oil tankers?
There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined crude oil from its point of extraction to refineries. Product tankers, generally much smaller, are designed to move refined products from refineries to points near consuming markets.
What are the 3 classifications of chemical tankers as per the IBC Code?
The IBC Code defines three ship types (ST) of chemical tankers: ST1, ST2, and ST3. -ST1 is a chemical tanker intended to transport most dangerous products, which require maximum preventive measures to preclude an escape of such cargo.
What is Smpep and its use?
Shipboard Marine Pollution Emergency Plan (SMPEP) Regulation 17 of Annex II of MARPOL requires every ship of 150gt and above that is certified to carry noxious liquid substances in bulk to carry on board a pollution emergency plan for noxious liquid substances not later than 1st January 2003.
What is CBT and SBT in ship?
CBT’s are Clean Ballast Tanks – carrying clean ballast as defined above. SBT’s are Segregated Ballast Tanks – These are tanks solely for the purpose of carrying ballast and no oil cargo. These tanks have separate lines, separate pumps and are totally isolated from the cargo system and the ship’s fuel system.
What is slop tank?
Slop tank means a tank specifically designated for the collection of tank drainings, tank washings and other oily mixtures.
What is IMO Type 1?
IMO Type 1(ST1) Type 1 ship is a chemical tanker intended to transport Chapter 17 of the IBC Code products with very severe environmental and safety hazards which require maximum preventive measures to preclude an escape of such cargo.
What is ST1 chemical tanker?
What is LR1 tanker?
An LR1 tanker can carry between 345,000 barrels and 615,000 barrels of gasoline (14.5-25.8 million gallons) or between 310,000 barrels and 550,000 barrels of light sweet crude oil. A classification used to describe a large portion of the global tanker fleet is AFRAMAX.
What is ULCC ship?
Also known as: Ultra large crude carrier. ULCC refers to the largest class of oil tanker, which is larger than VLCC. ULCC tankers are in the range of 320-560 DWT. They are used exclusively for crude oil shipping. ULCC crude tankers are typically used on long-haul routes.
What is Type 3 chemical tanker?
A type 3 ship is a chemical tanker intended to transport chapter 17 products with sufficiently severe environmental and safety hazards which require a moderate degree of containment to increase survival capability in a damaged condition.