Nature – Komkhum et al. (2025): Carbon dioxide removal from triethanolamine solution using living microalgae-loofah biocomposites

Tanakit Komkhum, Teerawat Sema, Zia Ur Rehman, Pichaya In-na IN: Scientific Reports, https://doi.org/10.1038/s41598-025-90855-x

Amine solvents are commonly used for CO₂ capture with high efficiency and absorption rates. However, solvent regeneration consumes an extensive amount of energy. One of alternative approaches is amine regeneration through microalgae. Recently, living biocomposites, intensifying traditional suspended cultivation, have been developed. With this technology, immobilizing microalgae on biocompatible materials with binder outperformed the suspended system in terms of CO₂ capture rates. In this study, living microalgae-loofah biocomposites with immobilized Scenedesmus acuminatus TISTR 8457 using 5%v/v acrylic medium were tested to remove CO₂ from CO₂-rich triethanolamine (TEA) solutions.

LINK