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

Offshore

Damen Delivers Custom-Made Offshore Winches to Fugro

Damen Maaskant Shipyards, part of Damen Shipyards Group, has delivered two dedicated offshore winches to Fugro. The Dutch shipyard was responsible for the design,

Shell: UK Should Reduce North Sea Oil Tax

The British government should review a supplementary tax charge on North Sea oil producers as it has made the operation of some fields unrealistic, Shell Chief

Shell Eyes Arctic Drilling this Summer

Oil major Shell wants to revive its Arctic oil drilling programme this year after a near two-year suspension, angering environmentalists who say the risk of an oil spill is too high.

Fuels & Lubes

Liberian Registry Launches Green Ship Initiative

“We have launched a new initiative to help shipowners improve their green credentials and meet other corporate social responsibilities," said Scott Bergeron, CEO

Stolt-Nielsen Q4 Profit Misses Forecast

Shipping firm Stolt-Nielsen reported fourth quarter earnings below forecasts on Thursday and said it was concerned about the outlook for the chemical tanker market,

Shell: UK Should Reduce North Sea Oil Tax

The British government should review a supplementary tax charge on North Sea oil producers as it has made the operation of some fields unrealistic, Shell Chief

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Navigation Offshore Oil Pod Propulsion Port Authority Ship Repair Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1212 sec (8 req/sec)