Work

Low-Viscosity Nonaqueous Sulfolane–Amine–Methanol Solvent Blend for Reversible CO2 Capture: Part II. Blend Optimization, Water Effect, and Speciation

Year: 2024

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide This work is part II of the investigation of a low viscosity, low regeneration energy nonaqueous CO 2 capture solvent blend consisting of readily available chemicals diisopropylamine (DPA)–methanol–sulfolane and featuring the monomethyl carbonate anion (MMC) as a CO 2 absorption specie. The region of practical solvent composition, high CO 2 capacity, low regeneration energy, and avoidance of solvent solidification at a CO 2 capture condition is identified by the design of experiment methodology combined with solvent attenuated total reflectance–Fourier transform infrared and nuclear magnetic resonance monitoring and speciation analysis. Flue gas contains water vapor; hence, solvent water stability is important. The limit of solvent blend water content is determined to be 5 wt % because of MMC decomposition to DPA-bicarbonate and -carbamate.

Source: Journal of Chemical & Engineering Data

DOI: 10.1021/acs.jced.4c00175

Authors: Jayangi D. Wagaarachchige, Zulkifli Idris, Bjørnar Arstad, Maths Halstensen, Klaus-J. Jens

Institutions: University of South-Eastern Norway, SINTEF

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: $4,500