As global industry maintains its focus on carbon reduction by investing in technologies such as carbon capture and storage (CCS), the shipping sector has sought to lower emissions by looking to install CCS units onboard existing ships.

Signed today, 1st August, an agreement between certification specialist Bureau Veritas (BV), one of Hong Kong’s largest shipowners, Wah Kwong, and Shanghai Qiyao Environmental Technology Co. Ltd. (Qiyao) aims to study the feasibility of installing such units on ships to meet 2030 CII targets. 

The technology has been developed by Qiyao to be integrated into the two types of bulk carriers in operation in the Wah Kwong fleet. 

Having submitted the relevant drawings, BV has reviewed plans to ensure the safety of the vessels and equipment, and that the carbon emission reduction targets are ‘effectively achieved’ during operation. 

Capable of being designed for different ship types and sizes, the concept unit has been found to capture at a rate of over 85%, subject to improvement. 

Source: BV

The mechanism of capture involves an organic amine compound solution that reacts with the CO2 captured within the absorption unit, separating it from the exhaust gas. 

Following desorption, the CO2 is then passed through a compression unit before being purified, cooled into liquid CO2 and stored in a low temperature tank. 

“The transition to a greener shipping industry is critical,” commented Alex Gregg-Smith, Senior Vice President & Chief Executive, North Asia & China, BV Marine & Offshore. 

“Carbon capture, utilisation, and storage (CCUS) technology captured a total of 40m tonnes of CO2 in 2021 according to the International Energy Agency (IEA), notably in industrial projects on shore.” 

“This makes CCUS one of the options available today that could significantly contribute to achieve carbon neutrality,” he added. 

With CCS technology having already reached a relatively high level of maturity, the study could help advance it as a marine application.