ViganGeneva DryTBA GroupPort of StocktonPort of South LouisianaCimbria
  • Telestack
  • Van Aalst
  • Sailors Society
  • Vigan
  • Bühler GmbH
  • TMS Awards 2023

Inert gas system orders soar as shipowners aim for new emissions targets

Inert gas system orders soar as shipowners aim for new emissions targets

(Posted on 26/10/22)

Survitec’s Maritime Protection brand has registered a significant increase in orders for Inert Gas (IG) systems over the past two years following a surge in orders for newbuild vessels with LNG-burning engines.

This increase is partly attributed to the global shipping industry seeking to meet decarbonisation targets by moving away from high polluting heavy fuel oil (HFO) towards alternative, cleaner marine fuels.

About 35% of the current world order book accounts for dual-fuelled and gas ships running on either a combination of liquefied natural gas (LNG) and conventional fuel or LNG alone. These engines need to be fitted with an inert gas system to prevent the build-up of highly flammable gasses.

Bernt Øhrn, General Manager, Maritime Protection, explained: “If the ship doesn’t have any oil or gas cargo tanks, which require a fixed CO2-based system to deal with the higher volume, a small N2 inert gas system is needed to make the fuel system safe.”

Demand for natural gas as a marine fuel is expected to continue over the next twenty years, with the industry viewing the energy source as a vital step towards decarbonisation.

“This is demonstrable in the increased orders for IG,” said Øhrn. “We are a seeing a significant push for alternatively fuelled newbuilds capable of handling the new emissions requirements. But we also see an increase in engine conversions and retrofits, with shipowners converting topsides to accommodate LNG fuel tanks.

“Although LNG only accounts for one-in-three newbuilds, shipowners of all types are beginning to see the dual-fuel or gas engine as the way forward.”

According to Øhrn, analysts predict a 25% increase in orders for dual-fuelled ships in 2023, increasing to 50% by 2025.

“With the need to further reduce the impact of ship operations on the marine environment, the speed of technological development will see the adoption of other alternative fuels, particularly ammonia and hydrogen,” said Øhrn, adding that Survitec is involved in several industry and university-based research projects investigating ways to make such fuels safe.

Øhrn predicts ammonia will become increasingly important but will require much larger fuel tanks, while the safety of a hydrogen-fuelled ship is likely to prove a challenge.

“High rates of hydrogen mixing with oxygen can be dangerous,” he said. “We are developing ways of inerting the exhaust side of a hydrogen fuel cell outside the ship. It may not be possible to use nitrogen as this could evaporate on contact with the colder hydrogen, so helium may be the only inert gas we can use. The problem with helium is it’s a scarce resource and expensive.”

Whatever the fuel of the future fleet, Survitec is supporting the industry on its sustainable maritime journey. Survitec’s new Head Start initiative was created with this in mind to support vessel owners and operators navigate these new challenges safely.

“We recognise the opportunities and challenges the industry will face in the coming years as significantly increasing numbers of vessels will be built or retrofitted to run on alternative fuels,” said Øhrn. “We are designing solutions to ensure operations remain safe no matter the fuel.”

Latest News

Weathernews enhances SeaNavigator platform with powerful new tools

(Posted on 19/06/24)

In line with its focus on continuous improvement of its cloud-based SeaNavigator voyage-optimization... Read more


BOA: Ships should be built to seawater-lubricated sterntubeless design

(Posted on 14/06/24)

Future newbuild ships of all types should be built without a sterntube and with a seawater-lubricated... Read more


Survitec white paper calls for greater oversight for fire safety inspections

(Posted on 07/06/24)

Global Survival Technology solutions provider Survitec has highlighted the dangers of inadequate maintenance... Read more


Making sense of real-time load measurement

(Posted on 07/06/24)

The handling of dry bulk materials used to be a completely manual process, but it is now being increasingly... Read more


Laskaridis Shipping and Metis to find pathways to low carbon future

(Posted on 01/06/24)

A research project which brings together The Cambridge Centre for Advanced Research and Education in... Read more


BWM delivers dust suppression system at Fraser Surrey docks

(Posted on 31/05/24)

Australia based Blue Water Misting (BWM) has delivered and commissioned a dust suppression system at... Read more


A new era in ballast water management

(Posted on 31/05/24)

Alfa Laval PureBallast 3 Ultra is the latest ballast water management system (BWMS) built on proven... Read more


New Ro-Ro Radial Telescopic Unit continues Telestack innovation

(Posted on 28/05/24)

Telestack are launching the NEW TSR 40 Radial Telescopic, the only Roll On-Roll Off (Ro-Ro) Radial Telescopic... Read more


Florida port orders two Konecranes Gottwald Generation 6 MHCs

(Posted on 28/05/24)

SeaPort Manatee will bring extra capacity to general cargo and container handling at their operations... Read more


Liebherr-MCCtec GmbH honoured again with EcoVadis gold medal

(Posted on 28/05/24)

Liebherr-MCCtec GmbH has once again achieved the gold medal, which is reserved for the top 5% of all... Read more


TelestackBühler GmbHTMS Awards 2023Sailors SocietyVan Aalst
  • Port of South Louisiana
  • TBA Group
  • Geneva Dry
  • Cimbria
  • Port of Stockton

Subscribe to our newsletter

Keep up to date with the latest global news in bulk cargo handling and shipping