SHORT INFORMATION

CD92-WIDE Water-in-Diesel/Fuel-Emulsification

1. Standard System HFO / NOx Reduction

2. Multifuel System

HFO / MDO / ULS / NOx Reduction

S.I.T. S

Phone: +49 (40) 837061

chiffs- &IndustrieTechnik GmbH Wittenmoor 36 ~ D-22525 Hamburg

E-Mail: service@sit-hamburg.de Fax: +49 (40) 837278 Internet : www.sit-hamburg.de

S.I.T Technology - CD92-WIDE (NOx Reduction System)

one of the Four progressive Fuel Conditioning Systems, developed by S.I.T

NOx Reduction

Emulsified Fuel

Water in Diesel Emulsion is the only Fuel Oil that simultaneously reduces harmful exhaust emissions. An emulsion can be defined as a fluid, which is a mixture of normally not insoluble liquids. The definition of a permanent emulsion is described as follows: An emulsion is called permanent if the droplets have reached sufficient size to prevent the separation of the insoluble material. An emulsion can be called stabilized or un-stabilized. The so-called stabilized emulsion uses an emulsifying agent to suspend the water in the fuel and reduce the required energy to produce the emulsion. Un-stabilized emulsions don't use emulsifying agents and so need higher shear forces to suspend small droplets of water in the fuel. Both solutions can produce fuel-water emulsions, which are stable over a long period. It is mentioned in some articles that a blend of fuel and water need a load dependent water control unit. This is also a requirement of Marpol. "Most serious solution to reducing air pollution from Diesel Internal Combustion Engine" Quote: European Emulsion Fuel Manufacturers Association (EEFMA) The above is only achievable with S.I.T CD92-WIDE System.

Schiffs- & IndustrieTechnik GmbH, Wittenmoor 36, D-22525 Hamburg phone: +49-40-837061 – fax: +49-40-837278 – e-mail: service@sit-hamburg.de - Internet: www.sit-hamburg.com

CLEAN AIR – Invisible Smoke CD92-WIDE-Multifuel System

Latest IMO Regulations require the eliminiation of hazardous NOx-emissions, in the first step for all newbuildings from the year 2000 on. This demand is one of the most important challanges for the future.

Water injection system "Invisible Smoke" is based on the fuel water emulsion technology that enables our state of art plant "Multifuel System" to reduce the soot and smoke emissions as well as bringing NOx-emissions down to current IMO-restrictions. Using WIDE-technology, soot formations are effectively pushed below the visibility limit (soot number Bosch 0.3 - 0.4). In order to confirm NOx reduction, SIT and Lloyd's Register have named the results out of this process "invisible smoke". The test report from the test laboratory shows very clearly, the gas-oil-water-emulsion remains stable over a period of a few weeks. After approximately six weeks only gas oil found separated. No amount of free water was detected in the laboratory. With SIT-WIDE-technology owners are enabled to operate in regions where soot formation at partial or "low load" can cause problems with environmental legislations, especially in eco-sensitive waters like Alaska, Norwegian fjords and Baltic waters. Here the strictest environmental standards apply with a soot reduction package, a forerunner of "Invisible Smoke" system. However, effective suppression of soot formation is also very much dependent on good engine maintenance and the grade of fuel used. These two considerations put the onus on engine operators to play their part in effectively reducing soot levels. The current requirements of Marpol Annex I and VI are not necessarily the latest stage. So may be in the future the requirements for existing ships increased. Per example the allowed value of NOx for already certified engines will be reduced. Also the allowed value of Sulphur Europe will be reduced from 2010 onwards. For all these future requirements the new generation of Homogeniser can be a valuable tool for an acceptable price. Hamburg, 22.07.2008 S.I.T GmbH Technical Management

CD92-M-MD/WIDE (Water-in-Diesel/Fuel-Emulsification) Multifuel System The standard NOx reduction plant described before means injection of water in heavy fuel oil flow in order to achieve stable diesel-water-emulsion after treating fuel and water mixture in CD92-unit. Nowadays on many occasions marine diesel oil is becoming more and more important to be burned in propulsion plants, specifically on cruise liners. In order to achieve a stable emulsion in this particular fuel specification, a special emulgator has to be added. Emulsification in gas oil (MGO) is possible only with the use of an emulsifying agent. For heavy fuel this emulsifying agent is not necessary.

The MGO (gas oil) and the water is mixed in the micronizer to a so-called "diesel milk". Lower ratios of water, for instance 5-10%, are forming a diesel milk which is a little bit shiny, but with about 20% water injection the emulsion shows a white colour. The diesel-water-emulsion under microscope clearly shows that the water droplets are surrounded by the oil, with other words: no contact corrosion will be possible.

The gas oil-water-emulsion remains stable over periods of weeks. Laboratory tests have proven that after approximately 6 weeks no quantity of free water was detected. The attached test certificate additionally proves lubricity of emulsified destillate. In order to achieve stable diesel-water-emulsion even in marine diesel oils, some additional components are required like separate buffer tank, special dosing pump, oil flow meter. The basic outfit remains unchanged so that now with 1 plant heavy fuels and/or marine diesel oils can be emulsified.

The very special program is able to guide via separate operations in touch panel the one or the other emulsification. The fuel/water emulsion method allows NOx improvements of 20-30% to be reached even on high-tech engines without any concessions on fuel oil consumption. The fuel/water emulsion is a highly efficient method and superior to direct water injection.

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S.I.T CD92 Mycronizer – Magnetic Drive

5th Generation