Daewoo shipyard develops technology to collect and store CO2 using ammonia-water sorbent

By Lim Chang-won Posted : September 16, 2021, 16:13 Updated : September 16, 2021, 16:13

[Courtesy of Daewoo Shipbuilding & Marine Engineering]

SEOUL -- Daewoo Shipbuilding & Marine Engineering, a major shipbuilder in South Korea, has developed a technology that can collect and store carbon dioxide generated during ship operation, using ammonia-water sorbent. The technology would contribute to responding to environmental regulations and providing new solutions to shipowners who are demanding high levels of eco-friendly technology.

The technology was verified using the exhaust gas purification technology developed by Hi Air Korea, a producer of equipment for heating, ventilation and air conditioning, Daewoo Shipbuilding & Marine Engineering (DSME) said. "We will do our best to speed up commercialization based on the successful verification of this carbon dioxide capture and storage technology," DSME's ship design head Lee Sang-cheol said in a statement on September 16.

"As the demand for eco-friendly ships is increasing, we are expected to gain a competitive advantage even in a battle for winning orders in the future," Lee said. With a wet process that collects and stores a large amount of carbon dioxide using ammonia water and mineral carbonation technology, the amount of absorption can be designed in various ways depending on the size of equipment, DSME said, adding the absorbent can be used again after recycling.

Mineral carbonation technology (MCT) is a process whereby CO2 is chemically reacted with minerals containing calcium or magnesium to form stable carbonate materials which do not incur any long-term liability or monitoring commitments. MCT theoretically has the permanent storage and storage capacity of carbon dioxide.
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