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Alternative stripper configurations for CO2 capture by aqueous amines
Abstract
Aqueous absorption/stripping is a promising technology for the capture of CO 2 from existing or new coal‐fired power plants. Four new stripper configurations (matrix, internal exchange, flashing feed, and multipressure with split feed) have been evaluated with seven model solvents that approximate the thermodynamic and rate properties of 7m (30 wt %) monoethanolamine (MEA), potassium carbonate promoted by piperazine (PZ), promoted MEA, methyldiethanolamine (MDEA) promoted by PZ, and hindered amines. The results show that solvents with high heats of absorption (MEA, MEA/PZ) favor operation at normal pressure. The relative performance of the alternative configurations is matrix > internal exchange > multipressure with split feed > flashing feed. MEA/PZ and MDEA/PZ are attractive alternatives to 7m MEA. The best solvent and process configuration, matrix with MDEA/PZ, offers 22 and 15% energy savings over the baseline and improved baseline, respectively, with stripping and compression to 10 MPa. The energy requirement for stripping and compression to 10 MPa is about 20% of the power output from a 500 MW power plant with 90% CO 2 removal. © 2007 American Institute of Chemical Engineers AIChE J, 2007
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Cited by
Direct Capture of CO2 from Ambient Air
Sanz-Pérez, E. S., Murdock, C. R., Didas, S. A., & Jones, C. W. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00173 · Cited by 2,406
Carbon capture and storage update
Boot-Handford, M. E., Abanades, J. C., Anthony, E. J., Blunt, M. J., Brandani, S., Mac Dowell, N., Fernández, J. R., Ferrari, M.-C., Gross, R., Hallett, J. P., et al. (2014) · Energy Environ. Sci. · doi:10.1039/c3ee42350f · Cited by 2,386
Self-citationSorbents for the Direct Capture of CO 2 from Ambient Air
Shi, X., Xiao, H., Azarabadi, H., Song, J., Wu, X., Chen, X., & Lackner, K. S. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.201906756 · Cited by 679
Aqueous piperazine as the new standard for CO2 capture technology
Rochelle, G., Chen, E., Freeman, S., Van Wagener, D., Xu, Q., & Voice, A. (2011) · Chemical Engineering Journal · doi:10.1016/j.cej.2011.02.011 · Cited by 549
Self-citationThermal degradation of monoethanolamine at stripper conditions
Davis, J., & Rochelle, G. (2009) · Energy Procedia · doi:10.1016/j.egypro.2009.01.045 · Cited by 339
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Metadata
- Authors
- Oyenekan, B. A., & Rochelle, G. T.
- Venue
- AIChE Journal
- Publisher
- Wiley
- Published
- 2007-10-29
- Volume
- 53
- Issue
- 12
- Pages
- 3144-3154
- ISSN
- 0001-1541 (ISSN-L)
- 1547-5905
- OpenAlex
- W2146361502
- Cited by
- 321
- References
- 0
- FWCI
- 13.81
- Type
- journal article
- Language
- en
- Open access
- closed
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