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Sunday, October 26, 2025

ABS Approves Ammonia Vent Gas Treatment System Design

Maritime Activity Reports, Inc.

October 1, 2025

Source: ABS

Source: ABS

An advanced design of an ammonia vent treatment system from HD Korea Shipbuilding & Offshore Engineering (HD KSOE) received approval in principle (AIP) from ABS and the Liberian International Ship and Corporate Registry (LISCR).

The ammonia vent treatment system integrates compact scrubbers to treat ammonia fuel, which can escape during the purging process, to maintain safe concentration levels before discharge through the vent mast. HD KSOE says this design also minimizes wastewater production. ABS completed design reviews based on class requirements and IMO Interim Guidance.

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