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 and Clean Marine Energy align to offer ship owners “scrubber finance”

    by Wärtsilä Corporation | Apr 07, 2015


    Funding concept promotes installation of scrubber systems by offering financing to ship owners, with returns taken from fuel price spread

    Wärtsilä and Clean Marine Energy (Europe) Ltd (CME) today announced the landmark signing of the shipping industry’s first collaboration agreement that will provide a convenient funding solution to drive the uptake of exhaust gas cleaning technology. The move is intended to ease the financial burden on ship owners seeking to install scrubber systems in order to meet sulphur emissions legislation.

    The financing solution, similar to those prevalent and proven in the building environment space, enables a ship owner to repay the cost of the scrubber system installation via a fuel adder, i.e. a fuel premium on the price of HFO by which the ship owner repays the cost of installing the scrubber. This provides a return from the differential between Heavy Fuel Oil (HFO) and Marine Gasoil (MGO) for a period of four to six years, depending on price spreads. This means that ship owners do not have the burden of meeting the up-front capital expenditure, which is typically between USD 3 million and USD 12 million per vessel. This investment is often difficult to pass on to charterers, whereas with CME financing, the fuel adder charge can be easily passed on until such time as the scrubber system is paid for. The concept therefore minimises the impact on the owner’s balance sheet, banking and security arrangements.

    Juha Kytölä, Vice President, Wärtsilä Environmental Solutions said: “This funding concept enables ship owners to increase the value of their asset without taking on additional debt, thereby making it easier to achieve long-term compliance with increasingly stringent environmental legislation. Wärtsilä is proud to be at the forefront of developing innovative solutions aimed at assisting customers to reduce both their operational costs and their environmental footprint. This collaboration agreement with CME is one more example of this philosophy.”

    Pace Ralli, Co-founder and Director of CME (Europe) commented: “The shipping industry is faced with a number of environmental regulations right now, often with a significant capital burden. Despite lower fuel costs, there is an even greater spread between HFO and MGO; as much as 90% in some cases. This allows us to inject capital to pay for the installation of a scrubber, allow the ship owner some of the benefits of continuing to burn HFO and still take out a return. In addition, the asset value improves, while the ship owner is compliant with new tighter ECA regulations. We see the CME solution as filling a gap in the financing of the latest scrubber technology. CME and Wärtsilä can provide the financed installation and maintenance of a scrubber through CME’s Emissions Compliance Service Agreement (ECSA).”

    The International Maritime Organization (IMO) introduced legislation that became effective at the beginning of 2015 restricting emissions of sulphur oxides (SOx) from ships operating in restricted Sulphur Emissions Control Areas (SECAs) to 0.1%. Sulphur levels of 0.5% will be applicable globally, when the broader legislation enters into force in either 2020 or 2025. The European Commission has mandated that the 0.5% sulphur limit will be applicable in European Union waters from 2020.

    There are currently three available options for owners to meet these regulations; by using low sulphur fuel, which is far more expensive than conventional marine diesel; converting to gas fuelled operation (LNG); or installing scrubber systems that enable conventional fuel to be burned. Wärtsilä is an industry leader in both dual-fuel engine technology that allows the use of liquefied natural gas as fuel, and scrubber systems that remove SOx emissions from conventional marine diesel fuel.

    Media contacts:

    Mr Sigurd Jenssen
    Director, Exhaust Gas Cleaning, Environmental Solutions
    Wärtsilä Ship Power
    Tel: +47 6927 9889
    sigurd.jenssen@wartsila.com  

    Ms Marit Holmlund-Sund
    Senior Manager Marketing, Communications, Ship Power
    Wärtsilä Corporation
    Tel: +358 10 709 1439
    marit.holmlund-sund@wartsila.com  

    Amie Pascoe
    Director
    BLUE Communications (representing Clean Marine Energy)
    T: +44 (0)7917 351187
    amie@blue-comms.com  

    Wärtsilä in brief:
    Wärtsilä is a global leader in complete lifecycle power solutions for the marine and energy markets. By emphasising technological innovation and total efficiency, Wärtsilä maximizes the environmental and economic performance of the vessels and power plants of its customers.
    In 2014, Wärtsilä's net sales totalled EUR 4.8 billion with approximately 17,700 employees. The company has operations in more than 200 locations in nearly 70 countries around the world. Wärtsilä is listed on the NASDAQ OMX Helsinki, Finland.
    www.wartsila.com

    About Clean Marine Energy:
    CME’s global headquarters are located in the United States, with its European arm registered in the Netherlands and operated from the UK. The company develops and delivers Emission Compliance Service Agreements (ECSA) that are used as funding mechanisms for exhaust gas cleaning systems. Its solutions offer shipowners tailored solutions for emissions compliance, including a proprietary financing mechanism to retrofit vessels with scrubber or LNG technology without a large upfront capital requirement. CME’s comprehensive offering is built on strategic partnerships between industry leaders that combine technology, engineering expertise, capabilities and track record. Please visit CME’s website at http://www.cleanmarineenergy.com/.

     

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