SOx scrubber

Your choice of SOx scrubber:
small, lightweight, low pressure loss

Fuji Electric’s SOx scrubber for ships is the very first in the world to use cyclone technology. Within the scrubber, a highly diffused spray of wash water increases contact between exhaust gases and liquid droplets, removing SOx by absorption. The cyclone method makes a mixing plate (which needs regular maintenance) unnecessary; so it also makes for lower maintenance costs.

Fuji Electric proposes marine exhaust gas cleaning system (EGCS) including SOx scrubber with innovative cyclone technology developed for marine use and the latest laser gas analyzer with easy maintenance.

World’s smallest SOx scrubber Removes over 98% of SOx

World’s smallest SOx scrubber Removes over 98% of SOx

By adopting cyclone technology, Fuji Electric’s SOx scrubber keeps pressure loss to less than 1kPa and has achieved significant downsizing. Our scrubber is 50% more compact than other SOx scrubbers on the market: it is lightweight, facilitating installation in ships. Our SOx scrubber can remove over 98% of sulphur in exhaust gases. Its operation can be optimized based on engine load, minimizing fuel consumption and impact on operating costs.

SOx scrubbers: a feasible compliance
method with emission regulations

There are several possible courses of action in complying with MARPOL Annex VI requirements, including switching to marine gas oil (MGO), installing a SOx scrubber and switching to liquefied natural gas (LNG).

The volatility and unpredictability of fuel prices leave ship operators without peace of mind. In the long run, this reduces the most feasible and sustainable options to using SOx scrubbers, which allow for the continued use of cheap, commonly used heavy fuel oil (HFO), or LNG, which requires major, more drastic changes.

Owing to its inexpensive cost and containing fewer pollutants, LNG has been touted as the fuel of the future. But no comparative study of SOx scrubbers and LNG-fuelled ships can avoid a few key facts:

Stricter CO2 emission regulations

Stricter CO2 emission regulations

On 1 January 2013, in accordance with Annex VI of the MARPOL Convention, the IMO mandated the implementation of the Ship Energy Efficiency Management Plan (SEEMP) for all ships. Ship operators have since been required to devise plans to reduce emissions of CO2 and other greenhouse gases. The graph above shows the target CO2 reduction levels.

Tighter SOx and PM regulations

Tighter SOx and PM regulations

In accordance with Annex VI of the MARPOL Convention, the IMO set these limits for sulphur in ships’ fuel. The latest limit of 0.5% outside Emission Control Areas (ECAs) will be implemented in 2020.

EGCSA workshops and presentations


As a full member of the Exhaust Gas Cleaning Systems Association (EGCSA), we at Fuji Electric are constantly engaged in efforts to bring about a cleaner environment and pursue environment-friendly solutions.


Creative use of space and resources is a hallmark of ship design, and it is the guiding philosophy behind Fuji Electric’s SOx scrubber and laser gas analyser.

Fuji Electric’s solution, SaveBlue, is an exhaust gas cleaning system (EGCS) that allows continued use of heavy fuel oil (HFO): With a compact size that facilitates ease of installation, it is suitable for both retrofitting and new builds.


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