Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/90833
Title: | An investigation into the adverse effects of O₂, SO₂, and NOx on polyethyleneimine functional CO₂ adsorbents | Authors: | Li, K Jiang, J |
Issue Date: | 2021 | Source: | SN applied sciences, 2021, v. 3, no. 3, 346 | Abstract: | In this study, we investigated the influence of O2, SO2, and NOx on branched and linear polyethyleneimine (PEI) functional silica CO2 adsorbents (BPEI-SiO2 and LPEI-SiO2, respectively). O2 was much more likely to oxidize BPEI-SiO2, compared with LPEI-SiO2, to form C=O and C=N groups and led to a 23.0% decrease in the CO2 adsorption capacity after 990 min of cumulative contact with 10% O2. In contrast, LPEI-SiO2 lost only approximately 3.6% of its CO2 adsorption capacity, although O2 oxidized LPEI-SiO2 to form C=O groups. SO2 can cause severe degradation of BPEI-SiO2 and LPEI-SiO2 by forming heat-stable NH3+—and/or NH2+—containing adducts and by promoting the formation of urea linkages. After cumulative contact with 10, 50, and 200 ppm SO2 for 990 min, BPEI-SiO2 lost 18.2%, 61.4%, and 89.0% of its CO2 adsorption capacity, and LPEI-SiO2 lost 18.5%, 60.6%, and 78.5% of its CO2 adsorption capacity, respectively. NO2 at 10 ppm and NO at 200 ppm caused almost no loss in CO2 adsorption capacity after cumulative contact for 990 min, but both led to degradation of adsorbents. NO2 can cause irreversible formation of NH3+—and/or NH2+—containing adducts, acid products, N-nitro compounds (N–NO2), C-nitroso compounds (C–N=O), and C-nitro (C–NO2) compounds, and can promote the formation of urea linkages. NO can lead to the formation of NH3+—and/or NH2+—containing adducts and N-nitroso (N–N = O) compounds. | Keywords: | Carbon capture Chemical degradation Flue gas Polyethyleneimine Solid amine adsorbents |
Publisher: | Springer | Journal: | SN applied sciences | ISSN: | 2523-3963 | EISSN: | 2523-3971 | DOI: | 10.1007/s42452-021-04352-7 | Rights: | © The Author(s) 2021 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The following publication Li, K., Jiang, J. An investigation into the adverse effects of O2, SO2, and NOx on polyethyleneimine functional CO2 adsorbents. SN Appl. Sci. 3, 346 (2021) is available at https://doi.org/10.1007/s42452-021-04352-7 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Li-Jiang2021_Article_AnInvestigationIntoTheAdverseE.pdf | 1.92 MB | Adobe PDF | View/Open |
Page views
77
Last Week
0
0
Last month
Citations as of May 5, 2024
Downloads
38
Citations as of May 5, 2024
SCOPUSTM
Citations
3
Citations as of May 3, 2024
WEB OF SCIENCETM
Citations
3
Citations as of May 2, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.