Jayarathna et al. (2023): Review on direct ocean capture (DOC) technologies

Chameera Jayarathna, Michel Maelum, Sumudu Karunarathne, Sara Andrenacci, Hans Aksel Haugen IN: Proceedings of the 16th Greenhouse Gas Control Technologies Conference (GHGT-16) 23-24 Oct 2022, http://dx.doi.org/10.2139/ssrn.4282969

This article reviews the studies which have been performed on the available technologies for ”direct CO2 removal from seawater”, also known as ”direct ocean capture (DOC)”. There is a limited number of articles available on DOC technologies with non-biological concepts such as
electrochemical ocean capture (EOC), mineralization, ocean alkalinity enhancement (OAE), etc. This study revealed valuable information on the recent progress of non-biological DOC technologies. There is a clearly visible attention towards the Electrochemical Ocean capture (EOC). Different approaches such as use of bipolar membrane electrodialysis (BPMED), three-chambered electrolytic cation exchange module (E-CEM) and electrochemical hydrogen looping (EHL) system can be highlighted.