Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy
The Fischer-Tropsch process produces liquid fuels. However, the process also yields Fischer-Tropsch wastewater, an acidic and corrosive byproduct enriched with various water-soluble oxygen-containing compounds such as alcohols, aldehydes, ketones and carboxylic acids, demanding careful treatment bef...
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| Format: | Article |
| Language: | zho |
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Science Press
2021-09-01
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| Series: | Chinese Journal of Magnetic Resonance |
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| Online Access: | http://121.43.60.238/bpxzz/article/2021/1000-4556/20210302.shtml |
| _version_ | 1818358681283067904 |
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| author | Shu-huai ZHANG Hui MA Zhao-hui GUO Min-jun MA Yan QIAO Ying-xiong WANG |
| author_facet | Shu-huai ZHANG Hui MA Zhao-hui GUO Min-jun MA Yan QIAO Ying-xiong WANG |
| author_sort | Shu-huai ZHANG |
| collection | DOAJ |
| description | The Fischer-Tropsch process produces liquid fuels. However, the process also yields Fischer-Tropsch wastewater, an acidic and corrosive byproduct enriched with various water-soluble oxygen-containing compounds such as alcohols, aldehydes, ketones and carboxylic acids, demanding careful treatment before discharge. Herein, the interactions between n-butanol and propionic acid, two main components in Fischer-Tropsch wastewater, and humic acid (HA) were studied with nuclear magnetic resonance (NMR) techniques. One-dimensional 1H chemical shift titration and 1H relaxation time measurements showed that: the peak width of both n-butanol and propionic acid broadened with increasing HA concentration, while the 1H chemical shift was unaltered for n-butanol, but moved to high field for propionic acid. The 1H spin-lattice and spin-spin relaxation time of n-butanol and propionic acid decreased and the 1H correlation time increased with increasing HA concentration. The interactions between HA and n-butanol were enhanced by increasing the HA concentration, but less affected by solution pH. While, the interactions between HA (20 mg/mL) and propionic acid were promoted by increasing the HA concentration and decreasing the solution pH value. It also appeared that the HA concentration plays a decisive role in the interaction. The study demonstrated that using HA for treatment of Fischer-Tropsch wastewater has a great potential in industrial applications owing to its simplicity and low price. |
| first_indexed | 2024-12-13T20:32:52Z |
| format | Article |
| id | doaj.art-3540a89119964a83af0dfc71b223a0f6 |
| institution | Directory Open Access Journal |
| issn | 1000-4556 |
| language | zho |
| last_indexed | 2024-12-13T20:32:52Z |
| publishDate | 2021-09-01 |
| publisher | Science Press |
| record_format | Article |
| series | Chinese Journal of Magnetic Resonance |
| spelling | doaj.art-3540a89119964a83af0dfc71b223a0f62022-12-21T23:32:22ZzhoScience PressChinese Journal of Magnetic Resonance1000-45562021-09-0138330131210.11938/cjmr20212893Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR SpectroscopyShu-huai ZHANG0Hui MA1Zhao-hui GUO2Min-jun MA3Yan QIAO4Ying-xiong WANG51. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China1. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China1. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China1. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China1. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China1. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaThe Fischer-Tropsch process produces liquid fuels. However, the process also yields Fischer-Tropsch wastewater, an acidic and corrosive byproduct enriched with various water-soluble oxygen-containing compounds such as alcohols, aldehydes, ketones and carboxylic acids, demanding careful treatment before discharge. Herein, the interactions between n-butanol and propionic acid, two main components in Fischer-Tropsch wastewater, and humic acid (HA) were studied with nuclear magnetic resonance (NMR) techniques. One-dimensional 1H chemical shift titration and 1H relaxation time measurements showed that: the peak width of both n-butanol and propionic acid broadened with increasing HA concentration, while the 1H chemical shift was unaltered for n-butanol, but moved to high field for propionic acid. The 1H spin-lattice and spin-spin relaxation time of n-butanol and propionic acid decreased and the 1H correlation time increased with increasing HA concentration. The interactions between HA and n-butanol were enhanced by increasing the HA concentration, but less affected by solution pH. While, the interactions between HA (20 mg/mL) and propionic acid were promoted by increasing the HA concentration and decreasing the solution pH value. It also appeared that the HA concentration plays a decisive role in the interaction. The study demonstrated that using HA for treatment of Fischer-Tropsch wastewater has a great potential in industrial applications owing to its simplicity and low price.http://121.43.60.238/bpxzz/article/2021/1000-4556/20210302.shtmlliquid-state nmradsorptionfischer-tropsch wastewaterhumic acidn-butanolpropionic acid |
| spellingShingle | Shu-huai ZHANG Hui MA Zhao-hui GUO Min-jun MA Yan QIAO Ying-xiong WANG Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy Chinese Journal of Magnetic Resonance liquid-state nmr adsorption fischer-tropsch wastewater humic acid n-butanol propionic acid |
| title | Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy |
| title_full | Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy |
| title_fullStr | Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy |
| title_full_unstemmed | Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy |
| title_short | Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy |
| title_sort | interactions between n butanol propionic acid and humic acid studied by nmr spectroscopy |
| topic | liquid-state nmr adsorption fischer-tropsch wastewater humic acid n-butanol propionic acid |
| url | http://121.43.60.238/bpxzz/article/2021/1000-4556/20210302.shtml |
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