Ingenuity That Floats

With our latest Project, CAPPADOCIA SEAWAYS we are proud to complete our 25th scrubber installation

With our latest Project, CAPPADOCIA SEAWAYS we are proud to complete our 25th scrubber installation. We are thankful to our valuable customers which have thrusted on us and gave us the chance of adding value to their good vessels.



System Information:

The scrubber system is designed to operate in three different modes, dry mode on compliant fuel, open loop mode and close loop mode. Each of these exhaust gas cleaning modes has its own unique way of operation for removing SOX from the exhaust gas. The scrubber system is called as hybrid design that is capable of operating in both open loop and closed loop modes. The wash water system design includes four water pump, two sea water pump, two circulating pump, two coolers, new sea chest in pump room, NaOH and Sludge tanks, process, 2 scrubber towers (8400 kWx2) tank and separator unit.


During the operation in open loop mode, the scrubber uses the natural alkalinity of seawater to absorb and bind the SOX from the exhaust gas. The alkalinity of seawater varies depending on geographic location, however at the most locations it is appropriate to use a value of approximately 2.5 mmol/L in Mediterranean and 1.2 mmol/L in Baltic sea.


During the operating in close loop mode, the scrubber recycles water in sodium hydroxide which is continuously added to balance pH at slightly alkaline value. When operating is closed loop mode, the scrubber system periodically discharges a quantity of wash water to reduce the build-up of sodium sulphates. The system is topped up with freshwater or seawater. For scrubbing, the gaseous SO2 can be removed with efficiencies close to 100%. The SO2 is converted to sodium sulphates and discharged to sea, which already contains much larger amounts of sodium sulphates.


By removing the SO2, formation of secondary aerosols and acid rain are avoided.