Langh Tech introduces onboard carbon capture technology

Finnish scrubber company Langh Tech has launched an onboard carbon capture (OCC) technology.

PHOTO: Exhaust emissions from a vessel. Getty Images

In this carbon capture technology, exhaust gases from ships containing Co2 are funnelled into a capture unit. Here, Co2 dissolves into a counter-flowing aqueous sodium hydroxide solution. Through a series of chemical reactions, the Co2 is chemically transformed into sodium carbonate. This sodium carbonate can then be offloaded onshore and sold for use in various industrial applications, Langh Tech said.

Langh Tech’s post-combustion OCC system eliminates the need for solvent regeneration and Co2 compression, significantly reducing energy consumption. The system requires no additional specialized equipment. Sodium carbonate, the byproduct, can be easily collected in containers for transport and further use. Additionally, the system is adaptable and scalable to meet the specific requirements of each vessel, offering flexibility for a wide range of vessel types.

Earlier this year, a pilot project testing an onboard OCC system was successfully conducted on a ship operated by Langh Ship, a sister company of Langh Tech. The pilot demonstrated that the system could achieve Co2 capture rates exceeding 80% from the exhaust gas flow. Depending on space availability and specific vessel or product configurations, the system can reduce overall Co2 emissions by 20-30%, the company claims.

Following the successful trial, the first commercial installations are scheduled for early 2025 on four bulk carriers. These installations are part of a collaboration involving Langh Tech, financial services firm Atal Solutions, shipping agency BAM Shipping, and Dutch shipbuilder Damen Shipyards Group.

By Tuhin Roy

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