Work

Developing slurries for carbon capture: From synthetic gas mixtures to flue gas

Year: 2026

Type: article

Abstract: Deep eutectic solvent (DES)‐based systems have recently emerged as promising alternatives to conventional liquid sorbents for CO 2 capture due to their tunable properties and potential for enhanced mass transfer. In this work, two DES‐based slurry systems previously developed for CO 2 capture, one aqueous and one non‐aqueous, were further evaluated under conditions relevant to industrial operation. Their performance was investigated using pure CO 2 as well as the CO 2 /N 2 and CO 2 /CH 4 gas mixtures up to 1.5 MPa to elucidate the effects of operating pressure and non‐reactive gas components typically present in industrial gas streams. It shows that the species other than CO 2 revealed a negligible impact on CO 2 uptake. Subsequently, to assess the practical applicability of the slurry systems, CO 2 capture was performed using conditioned flue gas after the biomass combustion at the Smurfit WestRock industrial site in Piteå, Sweden. The slurries demonstrated stable performance, with the aqueous slurry exhibiting higher uptake.

Source: AIChE Journal

DOI: 10.1002/aic.70624

Authors: Sahar Foorginezhad, Elena Wikberg, Fredrik Weiland, Xiaoyan Ji

Institutions: Luleå University of Technology, RISE Research Institutes of Sweden

Language: English

Topic: Carbon Dioxide Capture Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Climate action, Responsible consumption and production, Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,940