Advances in subsea carbon dioxide utilization and storage

• DOI: 10.1016/j.enrev.2023.100016
• Publication Date: 2023-03-07T01:17:18Z
• Authors: Jiashun Luo; Yachen Xie; Michael Z. Hou; Ying Xiong; Xunning Wu; Christian Truitt ...; Liangchao Huang
• Keywords: Subsea

Decisive steps in innovation and competitiveness are needed to meet global greenhouse gas emissions climate goals. As an effective method for reducing carbon emissions, dioxide (CO2) storage utilization on the seabed enable transport of captured CO2 via pipelines or ships permanent sites, such as saline aquifers depleted oil reservoirs subsea sediments, by injecting replacement displacement resources (oil, gas, hydrates, etc.). Subsea (SCUS) involves several research hotspots worldwide, including international local laws regulations, security, economics, environmental impact, public acceptance. Its current engineering progress also great interest. In addition, vigorous implementation energy transition rapid development renewable sources globally have resulted significant advancements SCUS. This paper provides overview mechanism seabed, analyzes key technical economic issues, summarizes existing safety risks, monitoring technologies, investment operating cost control identify remaining knowledge gaps. is followed practice update progress. Finally, combined with actualities China, potential trend China's summarized. review demonstrates enormous prospects utilization, although some risks remain leakage contamination, which technologies self-sealing effect hydrate, safe can be achieved. Additionally, considering demand large-scale storage, hydrogen, ammonia, other carriers coupled into industrial chain form economically competitive geological mode.