Experimental Study on CO2 Absorption into Aqueous Ammonia-based Blended Absorbents
Open accessAbstract
A crucial problem for the promising absorbent aqueous ammonia (NH3) is the low CO2 absorption rate and high ammonia volatile loss rate. This work investigated the effect of potential promoters for CO2 absorption into aqueous ammonia solutions on a wetted wall column. Monoethanolamine, sarcosinate, taurinate, glycinate, piperazine and 1-methyl piperazine were introduced to NH3 solutions as promoters. We found sarcosinate, piperazine and 1-methyl piperazine could increase the mass transfer coefficient of CO2 into the ammonia-based solutions significantly. We further undertook a detailed mass transfer study of CO2 into ammonia based blended solutions to investigate the effects of temperature and additive concentration. Besides, a novel ammonia separation method from low concentration ammonia solution by membrane vacuum regeneration was developed which could recover more than 80% of ammonia gas from low concentration ammonia.
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Non-ventilation decarbonizing technologies are not always more effective than mechanical air filtering, since their efficiency depends on CO2 concentration, size and type of ionizer, and ventilation rate of the area being treated.
“Nevertheless, it is not always more effective than mechanical air filtering, since its efficiency depends on the CO2 concentration, size, and type of ionizer, and the ventilation rate of the area being treated.”
From A Microalgae Photobioreactor System for Indoor Air Remediation: Empirical Examination of the CO2 Absorption Performance of Spirulina maxima in a NaHCO3-Reduced Medium (2023) · cites this paper as [9]
The Experimental section and Results discussion examine CO2 absorption into aqueous ammonia solutions, including effects of CO2 loading and additives; no page numbers are available in our copy. Searches for ionizers, mechanical air filtering, and ventilation found no passage comparing those technologies or identifying the claimed factors affecting an ionizer’s efficiency. (LLM, conf=0.78)
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Cites
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Flagged first, then by citations
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Cited by
Sorted by citations
Han, M., Park, J., Kim, I., & Yi, H. (2023) · Applied Sciences · doi:10.3390/app132412991 · Cited by 11 · see citing works
- Authors
- Fang, M., Xiang, Q., Zhou, X., Ma, Q., & Luo, Z.
- Affiliations
- State Key Laboratory of Clean Energy Utilization (CN)
- Corresponding author
- Fang, Mengxiang
- Venue
- Energy Procedia
- Publisher
- Elsevier BV
- Published
- 2014
- Volume
- 61
- Pages
- 2284-2288
- ISSN
- 1876-6102 (ISSN-L)
- OpenAlex
- W2059533846
- Cited by
- 19
- References
- 10
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 2 · 2023: 4 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 2 · 2017: 1 · 2016: 1
- FWCI
- 1.52
- Type
- conference paper
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- Locations
- Energy Procedia (publishedVersion, cc-by-nc-nd)
- Funders
- National Science Foundation
- National Natural Science Foundation of China (51076139, B08026, 51276161)
- Central University Basic Research Fund of China
- Project 211
- Fundamental Research Funds for the Central Universities (B08026, 2013FZA4008)
- Natural Science Foundation of Zhejiang Province (B08026, LY13E060004)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
- Physical Sciences › Engineering › Mechanical Engineering › Adsorption and Cooling Systems
- Keywords
- CO2 absorption, ammonium hydroxide, promoter, piperazine, 1-methylpiperazine, monoethanolamine, glycine, taurine, mass transfer coefficient, wetted wall column, ammonia recovery
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