Alfa Laval sells scrubber system

It is the first order received by Alfa Laval for such a multiple inlet system. Since the vessel’s engines have a combined rated output of 28 MW, this will be the largest marine scrubbing system ever sold. It can therefore be seen as a step forward in preparing the maritime transport industry for the stringent environmental requirements that will take effect from 2015.

The system is the first to utilize just one scrubber to clean the exhaust gases for the main as well as the auxiliary engines. René Diks, Manager, Marketing & Sales, Exhaust Gas Cleaning, Alfa Laval: “For the retrofit market, where space and weight are critical issues, it is essential to be able to supply a single scrubber that handles exhaust gases from all the ship’s engines. Other advantages include lower energy consumption, less piping and lower maintenance costs.”

Alfa Laval already has another system in successful operation on DFDS Ficaria Seaways. This system treats the exhaust gas of a 21 MW MAN main engine and is currently the largest scrubber in operation in the market. To date, the system has completed more than PureSOx, with a sulphur removal rate of more than 98%, is a unique hybrid system that can operate on either sea water or fresh water. The ability to operate the system in sea water mode will provide significant savings on caustic soda and fresh water consumption. In areas with low alkalinity the system will switch to fresh water mode. In this mode the water used for cleaning the exhaust gas is circulated in a closed system with zero discharge to the environment. Alfa Laval high speed separation technology is used to clean the effluent to ensure compliance with effluent water discharge criteria.

To minimize the energy consumption of the scrubber, the water flow is automatically adjusted to the engine power. The system is also designed to vary the water flow depending on the sulphur content in the fuel.

Source: Alfa Laval / maritimedanmark.dk