Monday 22nd Oct, 2018

Scrubbers installed ahead of cap

Photo: Wallenius Wilhelmsen
Photo: Wallenius Wilhelmsen

WITH the start IMO sulphur limits looming on 1 January 2020, the question still remains what method of sulphur reduction will be dominant – will it be a new kind of bunker fuel such as liquefied natural gas? Or, will it be emissions “scrubbers”, which filter out particulates such as sulphur dioxide from exhaust?

The former option was adopted by Wilhelmsen Ship Management for three of its ships. The technology group Wärtsilä signed on with Wilhelmsen to maintain exhaust gas cleaning systems on the three vessels for five years.

The agreement ensures the vessels are fully MARPOL-compliant and can fulfil the IMO’s new sulphur limits.

All three vessels have a 25 MW Wärtsilä Hybrid Scrubber System, which has the flexibility to operate in both open and closed loop, using seawater to remove SOx from the exhaust gas. In closed loop mode additional reagent is used in combination with sea water.

The agreement between Wärtsilä and Wilhelmsen Ship Management was signed in December 2017. The services covered under this agreement include annual audits and safety tests to ensure ongoing MARPOL compliance, calibration of the Continuous Emission Monitoring System (CEMS) and water monitoring system as well as operational training courses for the vessels’ crew.

“For Wilhelmsen Ship Management, operating sustainably and maintaining MARPOL compliance is absolutely crucial. This agreement with Wärtsilä ensures that we are doing it in a correct and documented way to fulfil authorities’ requirements. Additionally, it allows us to perform long term cost predictability and channel more focus into critical ship management operations,” says Jon Helge Ulstein, Vessel Manager at Wilhelmsen Ship Management.

“Wärtsilä’s purpose is to enable sustainable societies with smart technologies. We want to build awareness of sustainability and provide solutions that help customers reduce or eliminate emissions. This agreement with Wilhelmsen Ship Management does exactly that by ensuring that the vessels comply with the strict sulphurs limits set by IMO’s standards. Additionally, the agreement provides Wilhelmsen Ship Management with predictability of the vessel maintenance costs,” says Glenn Holid, Sales Manager at Wärtsilä Moss.

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