CleanSOx Compact Exhaust Gas Cleaning System (EGCS) business case

By: Jeroen Berger, June 29, 2018 (updated)

Inventor Chemical Tankers AS (ICT) from Norway has recently chosen for the new CleanSOX Compact Hybrid Allstream Exhaust Gas Cleaning System (EGCS) from our partner Clean Marine AS. On board of seven current chemical tankers (19900 DWT) built between 2015 and 2017, the compact scrubber solution will be installed. All vessels were designed and built by the Japanese-based Fukuoka Shipyard. Chemical Tankers AS is part of Hansa Tankers Management AS, that has a fleet of 30 chemical tankers.

 

Trigger for choosing for scrubber technology

 

Inventor Chemical Tankers AS (ICT) must comply with the upcoming  worldwide limit for sulphur in fuel oil used on board ships of 0.50% m/m (mass by mass) from 1 January 2020. The Exhaust Gas Cleaning System (EGCS) from Clean Marine AS comply to this regulation.

 

Factors that have led to this decision

 

The decision to choose the compact scrubber solution for the seven chemical tankers was driven by a number of factors. Inventor Chemical Tankers AS (ICT) compared performance, size, weight, price and operating costs of similar products developed by other companies before choosing this compact solution.

 

Why Clean Marine?

 

The new CleanSOx Compact Hybrid Allstream Exhaust Gas Cleaning System (EGCS) is a big step forward. Compared with the previous EGCS, the height is reduced by 66%, the weight by 30% and the costs by 30%. Through its significant size and weight reduction design, this scrubber does therefore not necessitate or involve a major design change or rebuilding of an existing or new building vessel to fit the equipment onboard.

 

This compact scrubber offers proven allstream exhaust gas handling meaning all exhaust sources on board, including boilers, can be served by one common EGCS unit; enabling a fast return on investment.

 

The scrubber works equally well in open (liquid one time through) and closed (liquid recirculation) modes while seawater and alkali is used to regulate the sulphur trapping efficiency in both modes. The EGCS can operate in all types of water (including low alkaline and saline water) in either mode and without loss of efficiency.

 

The CleanSOx Compact EGCS is therefore an optimal solution for the marine environment and represents a futureproof scrubber system for the ship owner, adhering to regulatory variety in all waters. The system has also the ability to combine natural and added alkalinity in open loop operation. This means it will provide high cleaning efficiency while maintaining a pH>6 at the outlet; the pH limit for the United States (US). This makes the effluent compliant with all IMO and regional/local regulations, including the worldwide limit for sulphur in fuel oil used on board ships of 0.50% m/m (mass by mass) from 1 January 2020.

 

Photo: CleanSOx Compact EGCS from Clean Marine AS

 

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