Scrubber chemical tanker business case

By: Jeroen Berger, July 4, 2017

Our Norwegian partner Clean Marine has been selected by Hudong-Zhonghua Shipbuilding as the supplier of scrubber technology for two chemical tankers (38,000 DWT), which the Chinese yard are building for Stolt Tankers. The two ships are part of six ships in total. Stolt Tankers operates with an advanced fleet of various ships worldwide, including many chemical tankers. The fleet consists of more than 150 ships.


What was the reason to invest in scrubber technology?


By installing these scrubbers for Stolt Tankers, the chemical tankers comply with the new sulphur regulation that calls for a 0.1% sulphur limit in Sulphur Emission Control Areas (SECAs) by 2015. This without having to switch on Marine Gas Oil (MGO), the more expensive low-sulphur fuel. Stolt Tankers has a strict focus on safety and the environment, and with the Clean Marine scrubbers, the newbuilding ships will comply with local and international emission regulations.


Which factors have led to make this choice?


The sulphur regulation leads to sustainable choices. For example, choosing between Marine Gas Oil (MGO), an alternative fuel like Liquefied Natural Gas (LNG) and Heavy Fuel Oil (HFO) with the use of scrubber technology.


Important factors that have influenced the purchase decision for Stolt Tankers to choose for a scrubber, have been: the future price gap between MGO and HFO, the timeframe in the SECA area until 2020 (the sailing profile), the fuel consumption, annual savings and payback period.


What was the reason for choosing Clean Marine?


Clean Marine has developed a scrubber, also called as Exhaust Gas Cleaning System (EGCS), based on a patented Advanced Vortex Chamber (AVC) principle, which results in efficient separation performances. The scrubber is also the only true multi-steam system currently on the market, meaning that all exhaust sources onboard, including boilers, are served by a single EGCS unit.


The scrubbers reduce both sulphur oxides (SOx) and particulate matter (PM) for one main engine, three auxiliary engines and three boilers. With the hybrid systems, ships can effortlessly sail in both fresh water and seawater - without the loss of efficiency. The Clean Marine scrubbers are well-suited to the current pH limit in Europe and the US. The delivery of the scrubbers will take place in 2015.


Photo: scrubber from Clean Marine


Read more business cases


Your name:
Your email address:
Ask your question:

Your information will be kept confidential. See our privacy policy for more information.