Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol
To tackle the prevalent challenges encountered with polyamine-based non-aqueous absorbents (NAAs), particularly the formation of viscous products and inferior regeneration performance, this study proposed an innovative synergistic regulation strategy that integrated 2-amino-2-methyl-1-propanol (AMP)...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Carbon Capture Science & Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772656824001222 |
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| author | Xiaobin Zhou Yunqiong Tang Chao Liu Shengpeng Mo Yinming Fan Dunqiu Wang Bihong Lv Yanan Zhang Yinian Zhu Zongqiang Zhu Guohua Jing |
| author_facet | Xiaobin Zhou Yunqiong Tang Chao Liu Shengpeng Mo Yinming Fan Dunqiu Wang Bihong Lv Yanan Zhang Yinian Zhu Zongqiang Zhu Guohua Jing |
| author_sort | Xiaobin Zhou |
| collection | DOAJ |
| description | To tackle the prevalent challenges encountered with polyamine-based non-aqueous absorbents (NAAs), particularly the formation of viscous products and inferior regeneration performance, this study proposed an innovative synergistic regulation strategy that integrated 2-amino-2-methyl-1-propanol (AMP) and n-propanol (NPA). Accordingly, a novel tertiary tetraethylenepentamine (TEPA)-AMP-NPA (T-A-N) NAA was devised. The optimized T-A-N maintained complete homogeneity throughout the entire CO2 absorption process and achieved an impressive CO2 loading of 1.15 mol·mol−1 while maintaining a low viscosity of merely 22.47 mPa·s. Remarkably, its absorption capacity showed little decrement after four consecutive absorption-desorption cycles, underscoring its exceptional recyclability. Within the T-A-N system, AMP underwent a reaction with CO2, yielding AMP-carbamate and protonated AMP, while TEPA engaged in CO2 absorption to form zwitterionic carbamates. During the desorption process, NPA served as a regeneration activator, facilitating the conversion of stable TEPA-carbamates into less stable alkyl carbonate intermediates, thereby enhancing the T-A-N's regeneration performance. Moreover, the T-A-N system addressed the issue of TEPA-carbamate self-aggregation into insoluble gelatinous substances by leveraging the synergistic enhancement effects between AMP derivatives and NPA. Specifically, these components effectively bound TEPA-carbamate species via robust electrostatic affinity and intermolecular hydrogen-bond interactions, inhibiting their self-aggregation and preventing the formation of insoluble products. Furthermore, T-A-N exhibited a significant reduction in both sensible and latent heat requirements, by 67 % and 82 % respectively, compared to 30 wt% MEA, highlighting its advantageous energy-saving potential for CO2 capture. Overall, harnessing the synergistic enhancement effects of AMP and NPA was conducive to the development of polyamine-based NAAs that offered superior CO2 capture reversibility, low energy consumption, and resistance to insoluble product formation. |
| format | Article |
| id | doaj-art-a683168dffb94d38a826cf6b8df782b1 |
| institution | Kabale University |
| issn | 2772-6568 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Capture Science & Technology |
| spelling | doaj-art-a683168dffb94d38a826cf6b8df782b12024-12-11T05:58:50ZengElsevierCarbon Capture Science & Technology2772-65682024-12-0113100310Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanolXiaobin Zhou0Yunqiong Tang1Chao Liu2Shengpeng Mo3Yinming Fan4Dunqiu Wang5Bihong Lv6Yanan Zhang7Yinian Zhu8Zongqiang Zhu9Guohua Jing10College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR China; Corresponding authors at: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China.College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Chemical Engineering, Huaqiao University, Xiamen 361021, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR ChinaCollege of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR China; Corresponding authors at: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, PR China.College of Chemical Engineering, Huaqiao University, Xiamen 361021, PR ChinaTo tackle the prevalent challenges encountered with polyamine-based non-aqueous absorbents (NAAs), particularly the formation of viscous products and inferior regeneration performance, this study proposed an innovative synergistic regulation strategy that integrated 2-amino-2-methyl-1-propanol (AMP) and n-propanol (NPA). Accordingly, a novel tertiary tetraethylenepentamine (TEPA)-AMP-NPA (T-A-N) NAA was devised. The optimized T-A-N maintained complete homogeneity throughout the entire CO2 absorption process and achieved an impressive CO2 loading of 1.15 mol·mol−1 while maintaining a low viscosity of merely 22.47 mPa·s. Remarkably, its absorption capacity showed little decrement after four consecutive absorption-desorption cycles, underscoring its exceptional recyclability. Within the T-A-N system, AMP underwent a reaction with CO2, yielding AMP-carbamate and protonated AMP, while TEPA engaged in CO2 absorption to form zwitterionic carbamates. During the desorption process, NPA served as a regeneration activator, facilitating the conversion of stable TEPA-carbamates into less stable alkyl carbonate intermediates, thereby enhancing the T-A-N's regeneration performance. Moreover, the T-A-N system addressed the issue of TEPA-carbamate self-aggregation into insoluble gelatinous substances by leveraging the synergistic enhancement effects between AMP derivatives and NPA. Specifically, these components effectively bound TEPA-carbamate species via robust electrostatic affinity and intermolecular hydrogen-bond interactions, inhibiting their self-aggregation and preventing the formation of insoluble products. Furthermore, T-A-N exhibited a significant reduction in both sensible and latent heat requirements, by 67 % and 82 % respectively, compared to 30 wt% MEA, highlighting its advantageous energy-saving potential for CO2 capture. Overall, harnessing the synergistic enhancement effects of AMP and NPA was conducive to the development of polyamine-based NAAs that offered superior CO2 capture reversibility, low energy consumption, and resistance to insoluble product formation.http://www.sciencedirect.com/science/article/pii/S2772656824001222Carbon dioxide capturePolyamine-based non-aqueous absorbent2-amino-2-methyl-1-propanolN-propanolInsoluble productSynergistic regulation |
| spellingShingle | Xiaobin Zhou Yunqiong Tang Chao Liu Shengpeng Mo Yinming Fan Dunqiu Wang Bihong Lv Yanan Zhang Yinian Zhu Zongqiang Zhu Guohua Jing Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol Carbon Capture Science & Technology Carbon dioxide capture Polyamine-based non-aqueous absorbent 2-amino-2-methyl-1-propanol N-propanol Insoluble product Synergistic regulation |
| title | Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol |
| title_full | Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol |
| title_fullStr | Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol |
| title_full_unstemmed | Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol |
| title_short | Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol |
| title_sort | eliminating insoluble products and enhancing reversible co2 capture of a tetraethylenepentamine based non aqueous absorbent exploring the synergistic regulation of 2 amino 2 methyl 1 propanol and n propanol |
| topic | Carbon dioxide capture Polyamine-based non-aqueous absorbent 2-amino-2-methyl-1-propanol N-propanol Insoluble product Synergistic regulation |
| url | http://www.sciencedirect.com/science/article/pii/S2772656824001222 |
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