Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2
Desorption of activated carbon saturated with VOCs (volatile organic compounds) under supercritical CO2 is greatly affected by pressure and temperature, and the influence mechanism remains ambiguous. In this paper, toluene is considered as the representative of VOC, influence of pressure and tempera...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23009838 |
| _version_ | 1797422593056178176 |
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| author | Xianhang Sun Xianli Fan Weiqiu Huang Liang Dong Yuan Sun |
| author_facet | Xianhang Sun Xianli Fan Weiqiu Huang Liang Dong Yuan Sun |
| author_sort | Xianhang Sun |
| collection | DOAJ |
| description | Desorption of activated carbon saturated with VOCs (volatile organic compounds) under supercritical CO2 is greatly affected by pressure and temperature, and the influence mechanism remains ambiguous. In this paper, toluene is considered as the representative of VOC, influence of pressure and temperature on the toluene desorption ratio is investigated by experimental and molecular dynamic simulation methods. The experimental results show that the toluene desorption ratio increases as pressure increases, but the influence of temperature on the toluene desorption ratio is affected by pressure. The desorption ratio decreases with increasing temperature at lower pressure, while the desorption ratio increases at the beginning but then decreases with increasing temperature at higher pressure. The mechanism analysis presents that the influence of pressure is governed by “density effect”, the influence of temperature is governed by “density effect” and “diffusion effect” together, the final result is determined by the competition between the two effects. |
| first_indexed | 2024-03-09T07:35:34Z |
| format | Article |
| id | doaj.art-b1794b9ac51d45d5b98d35c1495da4b6 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-09T07:35:34Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-b1794b9ac51d45d5b98d35c1495da4b62023-12-03T05:41:20ZengElsevierCase Studies in Thermal Engineering2214-157X2023-12-0152103677Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2Xianhang Sun0Xianli Fan1Weiqiu Huang2Liang Dong3Yuan Sun4Jiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology, Changzhou University, Jiangsu, 213164, ChinaLiaohe Oil Field Environmental Engineering Company, Liaoning, 124000, ChinaJiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology, Changzhou University, Jiangsu, 213164, China; Corresponding author.Jiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology, Changzhou University, Jiangsu, 213164, ChinaJiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology, Changzhou University, Jiangsu, 213164, China; Corresponding author.Desorption of activated carbon saturated with VOCs (volatile organic compounds) under supercritical CO2 is greatly affected by pressure and temperature, and the influence mechanism remains ambiguous. In this paper, toluene is considered as the representative of VOC, influence of pressure and temperature on the toluene desorption ratio is investigated by experimental and molecular dynamic simulation methods. The experimental results show that the toluene desorption ratio increases as pressure increases, but the influence of temperature on the toluene desorption ratio is affected by pressure. The desorption ratio decreases with increasing temperature at lower pressure, while the desorption ratio increases at the beginning but then decreases with increasing temperature at higher pressure. The mechanism analysis presents that the influence of pressure is governed by “density effect”, the influence of temperature is governed by “density effect” and “diffusion effect” together, the final result is determined by the competition between the two effects.http://www.sciencedirect.com/science/article/pii/S2214157X23009838Supercritical CO2Activated carbonToluene desorptionPressure and temperature |
| spellingShingle | Xianhang Sun Xianli Fan Weiqiu Huang Liang Dong Yuan Sun Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2 Case Studies in Thermal Engineering Supercritical CO2 Activated carbon Toluene desorption Pressure and temperature |
| title | Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2 |
| title_full | Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2 |
| title_fullStr | Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2 |
| title_full_unstemmed | Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2 |
| title_short | Influence of pressure and temperature on the toluene desorption from activated carbon under supercritical CO2 |
| title_sort | influence of pressure and temperature on the toluene desorption from activated carbon under supercritical co2 |
| topic | Supercritical CO2 Activated carbon Toluene desorption Pressure and temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23009838 |
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