Study on absorption and regeneration performance of EHA-DMSO non-aqueous absorbent for CO2 capture from flue gas

Fanli Meng, Kun Fu, Xueli Wang, Yixiao Wang, Lemeng Wang and Dong Fu

Energy, 2024, vol. 286, issue C

Abstract: In previous work by Fu et al. (2021, 2022), the performance of 2-ethylhexylan-1-amine (EHA) and diglyme absorbents for carbon dioxide (CO2) capture from flue gas was demonstrated. In this study, dimethyl sulfoxide (DMSO) was selected as a replacement for diglyme due to its high boiling point, low viscosity, and environmentally friendly properties. The optimization of the mass fraction resulted in a composition of 60 wt% EHA and 40 wt% DMSO, considering factors such as absorption capacity, absorption rate, and viscosity. At a desorption temperature of 373 K, the CO2-loaded EHA-DMSO exhibited a desorption efficiency of approximately 98 %. The estimation of desorption energy (Et) consumption, using the method of electric energy consumption, revealed that EHA-DMSO achieved approximately a 50 % reduction in Et compared to the MEA (30 wt%) absorbent. Even with a water content of 10 %, Et was reduced by around 40 %. Additionally, the absorbent demonstrated notable advantages in terms of water resistance and cycle performance. The advantages of environmental friendliness and easy availability of raw materials suggest that the EHA-DMSO absorbent holds a promising potential for broader application in the field of CO2 capture from flue gas.

Keywords: Carbon dioxide; Non-aqueous absorbent; Absorption/desorption; Water resistance; Cycle (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544223030256
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:286:y:2024:i:c:s0360544223030256

DOI: 10.1016/j.energy.2023.129631

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().