First commercial marine scrubber order
Wärtsilä has announced the signing of a turnkey contract with Finnish shortsea operator Containerships Oy, for the retrofit of a fresh water scrubber system to ship 'Containerships VII'.
According to Wärtsilä, the installation of scrubbers is a major step in the introduction of exhaust gas cleaning technology for maritime applications. The Wärtsilä scrubber will enable the vessel to meet future emission requirements in ECAs in an economical way. Wärtsilä claims to be the first manufacturer to have been awarded the certification for scrubber systems by the classification societies Det Norske Veritas and Germanischer Lloyd.
The ship concerned, Containerships VII, is equipped with a Wärtsilä W7L64 main engine. This order represents Wärtsilä’s first commercial marine scrubber project for a main engine. The scrubber will be delivered to the customer in August 2011. The conversion will enable the vessel to meet future SOx emission requirements in ECAs.
The company says that scrubbing is an attractive means of meeting the increasingly stringent IMO and EU regulations. Scrubbers efficiently reduce exhaust gas emissions such as sulphur oxides and particulates, with a slight reduction in nitrogen oxides.
“The Wärtsilä fresh water scrubber technology will meet both environmental and commercial requirements for our operations. We see it as a clear advantage that Wärtsilä, with its long experience in emissions abatement technology, delivers the scrubber solution,” says Sigurjon Markusson, CEO, Containerships.
Wärtsilä claims extensive experience in developing and delivering scrubbers for stationary diesel power plants, and offers a wide range of solutions for emissions reduction. The Wärtsilä scrubber is described as a “fully integrated design that aims to achieve optimal lifecycle efficiency, with outstanding performance and cost effective operation”. The system complies with IMO guidelines for exhaust emissions from all 2- and 4-stroke engines and oil-fired boilers.
Wärtsilä aims to strengthen its position as a major supplier of scrubbers and other exhaust gas cleaning technology for maritime applications. The company seeks to support its customers in meeting the requirements being set by increasingly stringent environmental legislation.
The Wärtsilä scrubber works with fresh water in a closed-loop system in which sulphur oxides are neutralised with caustic soda. A small amount of scrubbing water is extracted to remove contaminants in a treatment unit onboard, thereby fulfilling all the quality and monitoring requirements stipulated by the IMO. In so-called zero discharge mode, the clean effluents are led to a holding tank for scheduled and periodical discharge. Contaminants are always disposed of at reception facilities in port.
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