HS-3 chemical stability and performance results for CO2 capture

Within the REALISE project, which stands for Refinery-Adapted Cluster-Integrated Strategy to Enable Full-Chain CCUS Implementation, the integration of a multi-absorber concept for capturing CO2 from different stacks is investigated using TNO’s miniplant, an ATEX-compliant small-scale pilot plant, and the solvent HS-3 (aqueous mixture of 40 wt% of 1-(2-Hydroxyethyl)pyrrolidine, 1-(2HE)PRLD, and 15 wt% of 3-amino-1-propanol, 3A1P) solvent from 4 stacks of Irving Oil Whitegate refinery. Results regarding the overall performance of HS-3 solvent, including ease-of-operation, capture capacity, degradation and emissions are presented, together with the results of solvent management technologies’ studies. Overall, despite the fact that the solvent is easy to use and operate with (no precipitation even on unplanned shut-downs), slow mass transfer, high amine emissions and foaming tendency are limitations of the use of the HS-3 that need to tackled if further scaled-up.

Keywords: post-combustion carbon capture, demonstration, pilot campaign, refinery, HS-3 solvent

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Skylogianni, Eirini and Monteiro, Juliana and Huizinga, Arjen and Kruijne, Melvin and Gomez Rueda, Yamid and Vevelstad, Solrun Johanne and Grimstvedt, Andreas and Vernstad, Kai and McSweeney, Donal and Callanan, Niamh, HS-3 chemical stability and performance results for CO2 capture (October 4, 2024). Proceedings of the 17th Greenhouse Gas Control Technologies Conference (GHGT-17) 20-24 October 2024, Available at SSRN: https://ssrn.com/abstract=5066044 or http://dx.doi.org/10.2139/ssrn.5066044