Scrubber System Designs

Wärtsilä has developed two kinds of standard scrubber designs to better meet the demands of our customers. Wärtsilä can offer the conventional venturi scrubber design, as well as the more compact inline scrubber system.

Both scrubber designs have benefits and drawbacks dependent on vessel type and layout, so it’s important to look at the specific project needs. Both designs can be utilized for open loop, closed loop and hybrid scrubber systems.

A more detailed comparison of the two types of designs can be found in the presentation.

    SOReduction - Wärtsilä cares about your compliance

    The reduction of sulphur oxide (SOx) emissions from marine vessels has been a priority for quite some time now.  IMO regulations to reduce SOx emissions from ships first came into force in 2005, under Annex VI of the International Convention for the Prevention of Pollution from Ships – known as the MARPOL Convention.  Since then, SOx emissions have continued to be scrutinized. From January 1st 2020, the limit for sulphur in fuel oil used on board ships operating outside designated emission control areas will be reduced to 0.50% m/m (mass by mass). This will significantly reduce the amount of SOx emanating from ships, therefore bringing tangible health and environmental benefits for the world – particularly for populations living close to ports and major shipping routes.

    The main type of bunker oil for maritime vessels is heavy fuel oil, derived as a residue from crude oil distillation. Crude oil contains sulphur which, following combustion in the engine, ends up in ship emissions. SOx are known to be harmful to human health, causing respiratory symptoms and lung disease. In a study on the human health impacts of SOx emissions from ships, it is estimated that by not reducing the SOx limit for ships from 2020, the air pollution from ships would contribute to more than 570,000 additional premature deaths worldwide between 2020-2025.  In the atmosphere, SOx can lead to acid rain, which can harm crops, forests and aquatic species, and contributes to the acidification of the oceans. Therefore, through limiting SOemissions from ships one will not only improve air quality, but will also aid in protecting our environment.

    Wärtsilä has developed a full wet scrubber portfolio to fit each of our customer needs, and to meet their requirements in the reduction of SOx.  The range of Wärtsilä exhaust gas cleaning system (EGCS) have been tested and certified according to IMO guidelines, thus ensuring safe operation and compliance

    Wärtsilä continuously strives for technological excellence, and to minimize the environmental impact of our scrubber systems. 

    A Wärtsilä EGCS is a compliant solution for the entirety of your vessel’s lifetime

    The Wärtsilä EGCS body is constructed from over 50% recycled steel

    Our EGCS are engineered with the option to include wash water treatment units in order to ensure the safest possible discharge back to seawater.   

    In addition, Wärtsilä EGCS not only reduce SOx, but also remove large levels of particulate matter (PM) and black carbon

    Wärtsilä cares about the compliance of your fleet.  And we have made it easy for you to get exactly what you need – a compliant and environmentally friendly exhaust gas cleaning solution.  Contact our Sales Team today to find out more.

     
     

    Press releases

    Wärtsilä to supply customized Hybrid Scrubber solution to two Norwegian Cruise Line ships

    by Wärtsilä Corporation | Feb 17, 2020

    The technology group Wärtsilä will supply Hybrid Scrubber system packages, specially customized to meet the specific needs of two cruise vessels. The ships are owned and operated by Norwegian Cruise Line (NCL).

    The 325 metres long ‘Norwegian Breakaway’ and ‘Norwegian Getaway’ vessels will be fitted with Wärtsilä scrubber systems, enabling them to be in compliance with the International Maritime Organization’s (IMO) sulphur restriction legislation while operating on heavy fuel oil (HFO). The legislation became effective in January 2020. Customization of the system was required in order to meet the ships’ restricted space availability.

    “Wärtsilä’s technical and engineering capabilities are once again emphasised with this tailor-made exhaust gas cleaning solution. Obviously not all installations are the same and there is no single system that fits all applications. Having the flexibility to adjust the design to meet the customer’s specific needs is an important value-adding feature of our offering,” says Sigurd Jenssen, Director, Exhaust Gas Cleaning, Wärtsilä Marine.

    “We previously worked with Wärtsilä and are familiar with the quality and reliability of the group’s solutions,” said Giovanni Canu, VP, Special Projects and Operational Support at Norwegian Cruise Line Holdings. “We were confident, therefore, that the team there could design and engineer a sulphur emissions abatement system that could be successfully integrated into our two vessels. The VSOx scrubbers are the right choice for this project, being both efficient and the right technical solution. They will allow us to serve our customers, the environment, and society in general by meeting and exceeding the strict regulatory and environmental targets.”

    The Wärtsilä hybrid solution allows flexibility in the cleaning of sulphur from the exhaust gases. When operating in closed-loop mode, the wash water circulates from the scrubber unit to a process tank, with seawater being used as make-up replenishment water as needed. 

    The Wärtsilä equipment is scheduled for delivery in the first half of 2020. For the past seven years, Wärtsilä has had an engine maintenance agreement with NCL, and four new NCL cruise ships, currently under construction, will be fitted with Wärtsilä engines and scrubber systems.

    Image caption: Wärtsilä will supply customized Hybrid Scrubber systems that meet and exceed the latest emissions legislation to two Norwegian Cruise Line ships. Photo: Norwegian Cruise Line.

    Media contacts:

    Ms Marit Holmlund-Sund
    General Manager, Positioning, Marine Business Marketing
    Wärtsilä Corporation
    Tel: +358 10 709 1439

    marit.holmlund-sund@wartsila.com

    All Wärtsilä releases are available at https://www.wartsila.com/media/news-releases and at http://news.cision.com/wartsila-corporation where also the images can be downloaded.

    Wärtsilä in brief:
    Wärtsilä is a global leader in smart technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation, total efficiency and data analytics, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2019, Wärtsilä’s net sales totalled EUR 5.2 billion with approximately 19,000 employees. The company has operations in over 200 locations in more than 80 countries around the world. Wärtsilä is listed on Nasdaq Helsinki.
    www.wartsila.com

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    Heidi Paulsrud

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    Director – Sales & Marketing 

    Sergio Rodrigo Palencia

    Sergio Rodrigo Palencia
    Sr Sales Manager – Cruise & Special Projects

    Kashif Javaid

    Kashif Javaid
    Sr Sales Manager

    Johanna Snickars-Nykamb
    Ren Li

    Ren Li
    Sales Manager

    Christian Lobsgaard

    Christian Lobsgaard
    Sales Manager

    Aslak Suopanki

    Aslak Suopanki
    Manager – Sales Support

      
      
     

    Life-Cycle Services Team

    Sven Svanberg

    Sven Svanberg
    Director –  Lifecycle Services

    Scott Oh

    Scott Oh
    Director –  Asia Operations

    Joanna Marczyk

    Joanna Marczyk
    Sales Manager –  Lifecycle Services

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    Mats Nyfors
    Sales Manager –  Lifecycle Services

    Myong Koo Kang

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    Deniz Eke

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    Contact us

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