New Bunker Fuel-blending S3 Device: A Scrubber Alternative For Some Trades

By George Backwell at August 17, 2013 00:49
Filed Under: Fuels & Lubes, Marine Diesel Engines, New Technology
The S3 switch (a marketing acronym for ‘Smart Sulphur Switch) is a prototype developed by Denmark’s Insatech in cooperation with O.W. Bunkers, to blend and adjust two fuels (HFO and MDO) to a desired sulphur content enabling monitoring and control of marine diesel engine exhaust gas emissions without fitting expensive scrubber units.  The S3 is presently on trial aboard ships belonging to some of this major bunker supplier’s customers in Northern European waters, and commercial production is planned for later this year. S3 Fuel Switch Skid: Image credit Insatech Fuel Switching and BlendingOn most modern ships two service tanks are provided: one service tank contains the higher sulphur fuel oil and the other may contain low sulphur fuel to ensure MARPOL Annex VI emission regulations are met. This arrangement will involve a fuel changeover at some point during the ship’s engine operation, normally achieved by means of a three-way valve, and it is at this poin... [More]

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