EMMF: Getting Heavy With Bunkers

Monday, May 05, 2003

Higher viscosity bunker fuels do not automatically contain more harmful elements than lighter ones, according to ExxonMobil Marine Fuels (EMMF), which has recently been supplying 500 centiStokes fuel in response to customer demand.

Emphasizing that quality and safety must be prime considerations with all fuel supplied, irrespective of viscosity, EMMF says the two crucial prerequisites for using 500 cSt fuel are the ability to heat it to a sufficiently high temperature to inject it into the vessels' engines, and the provision of purification equipment able to deal with the higher specific gravity of the product.

The fuel must be maintained above its minimum pumping viscosity while in storage awaiting use. Storage tank heating coils are required, which are able to maintain the fuel at a stored temperature at or above 45 degrees C. Modern purifier systems are capable of ensuring that the fuel is effectively and sufficiently cleaned. Finally, the ship's main engine fuel oil pre-heaters must be able to raise the fuel to between 140 and 155 degrees centigrade. At these temperatures the new fuel is at the typical engine fuel injection viscosity of between 15 and 10cSt. The additional heating required to use the 500cSt fuel should be easily covered at sea by the vessel's exhaust gas boiler. In port, the boiler will typically consume extra fuel to maintain oil storage tank temperatures. But EMMF points out that, given the saving in the initial cost of the 500cSt product and the limited in-port time of many vessels today, there is the potential for significant savings to be made. Many shipowners are now able to benefit from the possible cost savings involved in using heavier fuel without impairing the performance of their vessels. EMMF says that shipowners whose vessels can use the fuel may realize considerable economies over the course of a vessel's annual operational life.

Maritime Reporter June 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Offshore

Aberdeen Pupils Peek into Subsea Oil & Gas Technology

Pupils at an Aberdeen primary school were given a rare insight into the depths of the oil and gas industry’s subsea sector after getting to sit in the driving

Technip Samsung JV Wins 2 FLNG Project Contracts

The Browse project covers the realization and installation of three FLNG units to develop the Brecknock, Calliance and Torosa fields in the Browse Basin, 425 kilometers North of Broome,

Fjords Processing Bags Johan Sverdrup Contracts

Fjords Processing, headquartered in Norway (Fornebu), has won three contracts for the deliveries of process systems for the Johan Sverdrup development in the North Sea.

Fuels & Lubes

CNOOC Acquires Asia's 1st LNG Powered Tug

China National Offshore Oil Corporation (CNOOC) has taken delivery of Asia’s first tugboat Hai Yang Shi You 525, designed to operate solely on liquefied natural gas as ship’s fuel.

Litgas, Statoil JV to Develop Baltic Sea LNG

Natural gas supply and trading company Litgas, part of Lithuania's state owned energy holding Lietuvos Energija, and Statoil, leading global energy company in oil and gas production,

Port Gothenburg Offering LNG

Ships running on liquefied natural gas (LNG) are going to be able to bunker at the Port of Gothenburg, as new regulations for LNG bunkering have been introduced

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Offshore Oil Pipelines Port Authority Ship Electronics Ship Repair Ship Simulators Sonar
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: 0.1206 sec (8 req/sec)