Chinese researchers have built an ocean carbon recycling system for capturing oceanic carbon dioxide and turning it into succinic acid, used to make biodegradable plastic.
The system extracted carbon dioxide from Shenzhen Bay’s seawater for more than 530 hours continuously, recording a 70% carbon capture efficiency.
The project was led by GAO Xiang and XIA Chuan from the Shenzhen Institutes of Advanced Technology and the University of Electronic Science and Technology of China, respectively.
This is the first time ever that a complete process of the same has been demonstrated, right from marine CO2 capture to creating chemical feedstock which is completely usable.
The cost was just 230 dollars per metric ton of CO2, rivalling the leading carbon capture technologies in the market today.
Firstly, seawater is sent to a 5-chamber electrochemical reactor, where the electric field triggers water splitting.
The protons acidify in one chamber while changing dissolved carbonate species into gaseous CO2, which is then separated through a hollow-fibre membrane and sent
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