Amine-Functionalized Clays as Solid Sorbents: High-Pressure CO₂ Sorption Testing and Characterization.

ABSTRACT: In this work, the CO₂ sorption capacity of both raw and amine-functionalized clays was investigated. For this purpose, samples of clay-based materials intended for industrial and artisanal applications were collected in the province of Imbabura, Ecuador. These raw materials were functionalized with monoethanolamine (MEA) and ethylenediamine (EDA) mixtures to enhance the affinity for carbon dioxide. CO₂ sorption testing was conducted in a high pressure, nonstirred system with an initial pressure of 3550 kPa and room temperature (25 °C). CO₂ sorption capacity was quantified by monitoring the pressure drop resulting from CO₂ uptake. Comprehensive characterization of the clay-based materials was carried out using nitrogen physisorption analysis, X-ra

SUBMITTER: Narvaez J 

PROVIDER: S-EPMC12854600 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature