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Thursday, 1 June 2017, 10:42 HKT/SGT
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Source: Mitsubishi Heavy Industries, Ltd.
MHI and MHPS Jointly Develop Marine SOx Scrubber
- World First Rectangular Design Offers Outstanding Purification Capacity and Space Savings for Large-scale Ships -

Oslo, Norway, June 1, 2017 - (JCN Newswire) - Mitsubishi Heavy Industries, Ltd. (MHI) and Mitsubishi Hitachi Power Systems, Ltd. (MHPS) have jointly developed a Large-scale Rectangular Marine Scrubber that efficiently removes sulfur oxides (SOx) from the exhaust gases emitted by marine diesel engines.

http://www.acnnewswire.com/topimg/Low_MHIMHPSSOxScrubber.JPG
Large-scale Rectangular Marine Scrubber

The scrubber was developed based on MHPS's comprehensive flue-gas treatment technologies cultivated through desulfurization systems for thermal power plants, leveraging MHI's expertise in marine engineering. The adoption of a rectangular box-shape configuration - a world first - offers outstanding ease of installation in small spaces and superlative emissions treatment for high-output engines used on large-scale container ships.

The new scrubber was developed in response to stringent new SOx emissions regulations that come into effect globally from 2020. It is able to purify exhaust gas emitted from inexpensive heavy fuel oil to a level equivalent to more expensive low-sulfur fuels, and has been designed to allow easy installation on existing ships.

The new SOx scrubber uses seawater as its cleaning agent, adopting a simple "open-loop" system in which seawater intake is sprayed directly on the exhaust gas. Effective use of seawater alkaline eliminates the need for chemicals or additional processing. Further, because the horizontal and vertical dimensions of the rectangular scrubber tower can be freely modified, volume efficiency is higher than previous cylindrical scrubbers, providing space savings. The equipment configuration is simple, allowing easy installation not only in newly commissioned ships but in retrofitted vessels as well.

The scrubber's main unit can be set into the upper deck's engine casing, meaning it doesn't encroach on the ship's load space. This is particularly beneficial for large-scale container ships that use a "twin island" design structure. Going forward, MHPS will apply its expertise in local procurement and construction accrued through flue-gas treatment systems for land installations to the new marine scrubber, and will also focus on reducing costs.

Since 2015 the International Maritime Organization (IMO) requires sulfur content of less than 0.5% for marine fuels in designated emission control areas (ECA). However this will expand to all sea areas from 2020 when new regulations are introduced. Under the new regulatory structure the use of cheaper fuels with 3.5% sulfur content will still be allowed if equipment is installed that offers proportionate emissions reductions. This trend has precipitated the move to commercialize SOx scrubbers that are compliant with the new regulations.

The Large-scale Rectangular Marine Scrubber was unveiled by MHI and MHPS at the "Nor-Shipping 2017" maritime trade show in Oslo, Norway (from May 30 - June 2). Deliveries of the scrubber are expected from 2020 and, in preparation, both companies will seek certification from selected countries while conducting extensive tests on ships. Sales offerings will focus on installations for both newly commissioned ships and ships already in service. This includes ships constructed by MHI, as well as ships built by other shipyards.


About Mitsubishi Heavy Industries, Ltd.

Mitsubishi Heavy Industries, Ltd. (MHI), headquartered in Tokyo, is one of the world's leading industrial firms with 80,000 group employees and annual consolidated revenues of around 38 billion U.S. dollars. For more than 130 years, the company has channeled big thinking into innovative and integrated solutions that move the world forward. MHI owns a unique business portfolio covering land, sea, sky and even space. MHI delivers innovative and integrated solutions across a wide range of industries from commercial aviation and transportation to power plants and gas turbines, and from machinery and infrastructure to integrated defense and space systems.
For more information, please visit the MHI Group website: http://www.mhi-global.com.
For Technology, Trends and Tangents, visit MHI's new online media SPECTRA: http://spectra.mhi.com.

Contact:
Joseph Hood, PR Manager
Mitsubishi Heavy Industries, Ltd.
Email: mhi-pr@mhi.co.jp
Tel: +81-(0)3-6716-2168
Fax: +81-(0)3-6716-5860



June 1, 2017 10:42 HKT/SGT
Source: Mitsubishi Heavy Industries, Ltd.

Topic: Press release summary
Sectors: Energy, Marine/Offshore
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