8,000 m³ Ethylene carrier “CASTEL NUOVO”
5 Jan 2010
The Italian Shipowner L.G.R. di Navigazione took delivery in December 2009 of the last innovative and environmentally friendly 8,000 m³ Ethylene carrier “CASTEL NUOVO” from the Korean shipyard SEKWANG HEAVY INDUSTRES. Eight (8) ships have been delivered since June 2007 to the Danish ship owner Lauritzen Kosan and its partner Allocean while L.G.R. di Navigazione holds two (2) ships, bringing the series to a total of ten (10) identical vessels.
During the gas trial at Ulsan, Korea, the gas plant performance and the fuel gas generation systems were successfully tested under supervision of TGE’s engineers.
TGE MARINE GAS ENGINEERING designed and delivered the complete gas handling system including IMO type “C” cargo tanks as well as the design of the ship.
“CASTEL NUOVO” is a sister vessel of “ISABELLA KOSAN”, a ship that received the Lloyd’s List Ship of the Year award, a new recognition for the gas carrier market. The technical innovations of these ships encompass a flexible deck container configuration, the use of two compressor houses, and the adoption of dual-fuel engine technology in the ship’s auxiliary power plant.
Furthermore these vessels are the first gas carriers designed to comply with the International Maritime Organisation’s (IMO) Green Passport concept and the CLEANSHIP class notation for pollution prevention.
Depending on the requirements of the trading engagement, the vessel can be equipped with different deck tank containers, including 20 ft and 40 ft units for LPG and products transported at temperatures of -40°C as well as 40 ft cryogenic containers for ethylene at -104°C. This offers owners advanced flexibility when the ship is regularly changing between cargoes. For instance, if the vessel is regularly switching between ethylene and propylene, the owner can fit an LPG tank container carrying sufficient propylene for a gassing-up operation as well as cryogenic deck tank containing enough ethylene to meet gassing-up needs.
Upon completion of discharge of one product, the vessel is able to retract cargo residues into the relevant deck tank, inert the tanks with nitrogen from the PSA unit, and finally gas-up again using the product stored in the deck tank containers. Due to the deck tank installation, the ship can perform a complete change of cargo grades without venting any product into the atmosphere or calling at a shore terminal to load products for gassing-up requirements.