Nonaqueous Mixed Amine CO<sub>2</sub> Capture Technology Based on <i>N</i>-Methylformamide
A nonaqueous mixed amine solution based on N-methylformamide (NMF) was developed for CO2 capture. The CO2 absorption and desorption performances of seven amine-based and mixed amine solvents were evaluated. The PZMN-12 solution (12 wt % PZ + 18 wt % MEA + 70 wt % NMF) exhibited the improved performance, achieving a desorption rate of 99.76% at 110 °C. The kinetics of CO2 absorption with PZMN-12 was analyzed, revealing an activation energy of 44.013 kJ/mol, which is 25.06% lower than that of monoethanolamine (MEA) solution. The desorption activation energy was determined to be 135.816 kJ/mol. Energy consumption was reduced to 1.67 GJ/tCO2 by combining the rich solvent split-flow (RSSF) and lean vapor compression (LVC) processes. PZMN-12 is recommended as a promising new solvent for CO2 capture.
Authors
- Zaoxiao Zhang
- Geoff Wang (ORCID: https://orcid.org/0000-0001-5284-7738)
- Teng Zhang (ORCID: https://orcid.org/0000-0002-6318-2708)
- Yuansheng Wu
- Yunsong Yu (ORCID: https://orcid.org/0000-0003-3368-8529)
Institutions
- The University of Queensland (AU)
- Xi'an Jiaotong University (CN)
Publication Details
- Journal
- Energy & Fuels
- Published
- 2024-12-25
- DOI
- https://doi.org/10.1021/acs.energyfuels.4c04581
- Citations
- 6
- Primary Topic
- Carbon Dioxide Capture Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.28
Funders
- National Natural Science Foundation of China
- K. C. Wong Education Foundation
- Higher Education Discipline Innovation Project
- Key Research and Development Projects of Shaanxi Province