Preventing Salt Precipitation in CO₂ Storage Processes in Saline Aquifers: Dissolved-Water CO₂ Injection Method.

ABSTRACT: CO₂ storage in geological formations, particularly deep saline aquifers, is a critical component of carbon capture and storage technology, offering significant potential for mitigating greenhouse gas emissions. However, high salinity of these aquifers poses the risk of salt precipitation, leading to pressurization and injectivity reduction. Developing a method to prevent salt precipitation remains a challenge, and this is an area that this study is focused on. Dissolved-water CO₂ injection (dwCO₂ injection) is proposed here as a novel method to prevent salt precipitation where water is dissolved in CO₂ before injection into an aquifer. Presence of water in the CO₂ stream prevents more dissolution of water into CO₂ (evaporati

SUBMITTER: Papi A 

PROVIDER: S-EPMC11874032 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature