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Wartsila-O-Env-NOR-SCR - 2 Pages

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Catalogue excerpts

WÄRTSILÄ NOX REDUCER – SCR SYSTEM ENVIRONMENTAL EFFICIENCY The latest in emission abatement technology offers ship owners a welcome opportunity to optimize operations and meet public demands for environmentally sound traffic. Today new and more stringent legislation concerning NOX emissions is a global phenomenon, and governing bodies like the International Maritime Organisation (IMO) are introducing also retroactive legislation. Regulations in the shape of fees, taxes or incentive programs are brought on from many parties, including individual countries that have introduced fairway dues, NOX tax or NOX fund initiatives. NOR SYSTEMS FOR ALL SHIP TYPES Wärtsilä NOR (NOX Recuder) is fully integrated with Wärtsilä four-stroke engines for high NOX emission reduction. Wärtsilä NOR is suitable for both newbuilds and retrofits. If required, the NOR control system can be integrated with the engine control automation system (Wärtsilä engines). Equipping the vessel, regardless of engine make, with a NOR system brings multiple benefits and prepares your vessel for both future competitiveness and international legislation. Additionally, the NOR system has a reducing effect on other pollutants, such as HC and PM. In case of choosing turn-key solution from Wärtsilä Services, the NOR system installation includes onboard modifications and fine-tuning of the system, so that engine functionality and noise levels are unaffected. The wide-frequency spectra Compact Silencer System from Wärtsilä is a perfect complement for NOR. Prefabricated ancillary systems and control and dosing systems that are monitored from PRODUCT AT A GLANCE The Wärtsilä NOX Reducer (NOR) system is based on selective catalytic reduction (SCR) technology and covers Wärtsilä’s mediumspeed marine engines. The main component is the reactor with the catalyst inside (see above). The highly efficient NOR system is optimised in terms of modularity, performance and costs, and typically achieves NOX emission reduction levels of 80–90%. one point only, facilitate both the installation of equipment as well as the daily operation of the NOR system. Choosing the Wärtsilä NOR system gives you access to consumables (e.g. catalyst elements), components and worldwide lifecycle support through our global service network.

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TECHNICAL DATA NOR reactor Soot blowing Dosing & control unit Compressed air Pump unit Urea tank NO X (g/kWh) 18 16 14 12 10 8 6 4 2 0 Primary methods operation area Tier II >130 kW New ships 2011 Wärtsilä NOR operation area 0 200 400 600 800 Tier I >130 kW New ships 2000 Secondary methods operation area 1000 1200 1400 1600 1800 2000 Rated engine speed (rpm) Tier III >130 kW New ships 2016 in designated areas The NOR reactor design is available in a wide range of sizes. With a high level of standardization and modularisation the structure is optimized for marine applications. The NOR reactor can...

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