Scandinavian firms set out to develop safe ammonia STS transfers

Norwegian chemical producer H2Carrier and Swedish engineering firm Trelleborg have agreed to develop ship-to-ship (STS) ammonia transfer system.

PHOTO: A concept model of H2Carrier’s floating ammonia production unit transferring ammonia to a ship. H2Carrier

The companies aim to develop a safe and efficient system for transferring ammonia from H2Carrier’s floating production unit.

The system will be based on Trelleborg’s LNG hose system that has enabled a host of LNG transfer operations globally and has recently been upgraded to handle liquid ammonia.

They intend to identify “the most effective transfer system layout and operational procedures” to implement on H2Carrier’s floating production unit. This will enable the unit to also function as an export terminal, which can reduce the need for offshore infrastructure.

The companies “foresee alternative and more appropriate transfer solutions such as tandem offloading” in an offshore environment, H2Carrier says.

Tandem offloading involves transfer of fluid or gas from the stem of a floating production unit to the bow of a shuttle tanker.

H2Carrier says this project could “potentially [lead] to the first ship to ship transfer of liquid green ammonia.”

By Tuhin Roy

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