Precipitating non-aqueous amine systems for absorption of carbon dioxide using 2-amino-2-methyl-1-propanol
(2019) In International Journal of Greenhouse Gas Control 88. p.460-468- Abstract
The aim of this study was to find a solvent to replace N-methyl-2-pyrrolidone (NMP) in CO2 absorption systems containing the amine 2-amino-2-methyl-1-propanol (AMP), in order to reduce the health risks associated with handling, as NMP is reproductively toxic. Seven organic solvents were investigated: dimethyl sulfoxide (DMSO), 3-(dimethylamino)propionitrile (3DMAPN), 1-pentanol (1 P), propylene carbonate (PC), 4-heptanone (4 H), 1-methylimidazole (1MIMI) and cyclohexanol (CH). Henry's constant, the CO2 solubility and the differential heat of absorption were determined for the pure solvents, and in solvent mixtures containing 25 wt% AMP, at 25 °C and 40 °C. Three of the solvents were found to have promising... (More)
The aim of this study was to find a solvent to replace N-methyl-2-pyrrolidone (NMP) in CO2 absorption systems containing the amine 2-amino-2-methyl-1-propanol (AMP), in order to reduce the health risks associated with handling, as NMP is reproductively toxic. Seven organic solvents were investigated: dimethyl sulfoxide (DMSO), 3-(dimethylamino)propionitrile (3DMAPN), 1-pentanol (1 P), propylene carbonate (PC), 4-heptanone (4 H), 1-methylimidazole (1MIMI) and cyclohexanol (CH). Henry's constant, the CO2 solubility and the differential heat of absorption were determined for the pure solvents, and in solvent mixtures containing 25 wt% AMP, at 25 °C and 40 °C. Three of the solvents were found to have promising absorption properties: DMSO, 3DMAPN and 1 P. In mixtures with AMP, precipitation was formed at both 25 and 40 °C, and the CO2 absorption capacity was similar to that in the AMP–NMP system, in terms of the CO2 loading for a given partial pressure of CO2. The results also indicated that the reaction of AMP and CO2 in these solvents can be described by the zwitterion reaction mechanism.
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- author
- Karlsson, Hanna K. LU ; Drabo, Peter LU and Svensson, Helena LU
- organization
- publishing date
- 2019-09
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- AMP, Bi-phasic, CO capture, Heat of absorption, Non-aqueous, Precipitating, Solubility
- in
- International Journal of Greenhouse Gas Control
- volume
- 88
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85068599186
- ISSN
- 1750-5836
- DOI
- 10.1016/j.ijggc.2019.07.001
- language
- English
- LU publication?
- yes
- id
- d6033bb1-bdf8-4a2c-a839-94b7d5b6ee8c
- date added to LUP
- 2019-07-16 09:55:39
- date last changed
- 2024-03-19 09:30:03
@article{d6033bb1-bdf8-4a2c-a839-94b7d5b6ee8c, abstract = {{<p>The aim of this study was to find a solvent to replace N-methyl-2-pyrrolidone (NMP) in CO<sub>2</sub> absorption systems containing the amine 2-amino-2-methyl-1-propanol (AMP), in order to reduce the health risks associated with handling, as NMP is reproductively toxic. Seven organic solvents were investigated: dimethyl sulfoxide (DMSO), 3-(dimethylamino)propionitrile (3DMAPN), 1-pentanol (1 P), propylene carbonate (PC), 4-heptanone (4 H), 1-methylimidazole (1MIMI) and cyclohexanol (CH). Henry's constant, the CO<sub>2</sub> solubility and the differential heat of absorption were determined for the pure solvents, and in solvent mixtures containing 25 wt% AMP, at 25 °C and 40 °C. Three of the solvents were found to have promising absorption properties: DMSO, 3DMAPN and 1 P. In mixtures with AMP, precipitation was formed at both 25 and 40 °C, and the CO<sub>2</sub> absorption capacity was similar to that in the AMP–NMP system, in terms of the CO<sub>2</sub> loading for a given partial pressure of CO<sub>2</sub>. The results also indicated that the reaction of AMP and CO<sub>2</sub> in these solvents can be described by the zwitterion reaction mechanism.</p>}}, author = {{Karlsson, Hanna K. and Drabo, Peter and Svensson, Helena}}, issn = {{1750-5836}}, keywords = {{AMP; Bi-phasic; CO capture; Heat of absorption; Non-aqueous; Precipitating; Solubility}}, language = {{eng}}, pages = {{460--468}}, publisher = {{Elsevier}}, series = {{International Journal of Greenhouse Gas Control}}, title = {{Precipitating non-aqueous amine systems for absorption of carbon dioxide using 2-amino-2-methyl-1-propanol}}, url = {{http://dx.doi.org/10.1016/j.ijggc.2019.07.001}}, doi = {{10.1016/j.ijggc.2019.07.001}}, volume = {{88}}, year = {{2019}}, }