Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon
When activated carbons containing carbon-carbon double bond reactive VOCs such as saturated styrene are thermally desorbed, it is easy to form macromolecular polymers at high temperatures to block the pores of activated carbon and reduce the adsorption performance of activated carbon. This study the...
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| Format: | Article |
| Language: | English |
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Emergency Management Press
2024-12-01
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| Series: | 矿业科学学报 |
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| Online Access: | http://kykxxb.cumtb.edu.cn/en/article/doi/10.19606/j.cnki.jmst.2024912 |
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| author | LIANG Dingcheng SU Xuechao XIE Qiang ZHANG Lianxiu DENG Qingwen ZHOU Hongyang LIU Jinchang |
| author_facet | LIANG Dingcheng SU Xuechao XIE Qiang ZHANG Lianxiu DENG Qingwen ZHOU Hongyang LIU Jinchang |
| author_sort | LIANG Dingcheng |
| collection | DOAJ |
| description | When activated carbons containing carbon-carbon double bond reactive VOCs such as saturated styrene are thermally desorbed, it is easy to form macromolecular polymers at high temperatures to block the pores of activated carbon and reduce the adsorption performance of activated carbon. This study therefore proposes to use the impregnation method to load the inorganic inhibitor on the activated carbon for modification. Specifically, we investigated the effect of inorganic polymerization inhibitor type, concentration and desorption temperature on the adsorption, desorption and regeneration properties of styrene and probed into the inhibition mechanism via gas adsorption method, X-ray photoelectron spectroscopy and scanning electron microscopy. Results show that when 0.05 mol/L FeCl3 was loaded as an inhibitor on the columnar activated carbon by impregnation, the activated carbon demonstrated maximum desorption effect at 100 ℃. The impregnation method enabled FeCl3 to be effectively loaded on activated carbon, the free radicals quenched at high temperature and the polymerization of styrene was inhibited to some extent. This method may effectively alleviate the difficulty of desorption and regeneration when activated carbon adsorbs and purifies reactive VOCs. |
| format | Article |
| id | doaj-art-39b7bac34eb743babda951961f2cf7f9 |
| institution | Kabale University |
| issn | 2096-2193 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj-art-39b7bac34eb743babda951961f2cf7f92025-01-14T08:46:55ZengEmergency Management Press矿业科学学报2096-21932024-12-019698899710.19606/j.cnki.jmst.2024912kykxxb-9-6-988Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbonLIANG Dingcheng0SU Xuechao1XIE Qiang2ZHANG Lianxiu3DENG Qingwen4ZHOU Hongyang5LIU Jinchang6School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaShandong Greed Group Artificial Environment Industry Design and Research Institute, Dezhou Shandong 250031, ChinaSchool of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaWhen activated carbons containing carbon-carbon double bond reactive VOCs such as saturated styrene are thermally desorbed, it is easy to form macromolecular polymers at high temperatures to block the pores of activated carbon and reduce the adsorption performance of activated carbon. This study therefore proposes to use the impregnation method to load the inorganic inhibitor on the activated carbon for modification. Specifically, we investigated the effect of inorganic polymerization inhibitor type, concentration and desorption temperature on the adsorption, desorption and regeneration properties of styrene and probed into the inhibition mechanism via gas adsorption method, X-ray photoelectron spectroscopy and scanning electron microscopy. Results show that when 0.05 mol/L FeCl3 was loaded as an inhibitor on the columnar activated carbon by impregnation, the activated carbon demonstrated maximum desorption effect at 100 ℃. The impregnation method enabled FeCl3 to be effectively loaded on activated carbon, the free radicals quenched at high temperature and the polymerization of styrene was inhibited to some extent. This method may effectively alleviate the difficulty of desorption and regeneration when activated carbon adsorbs and purifies reactive VOCs.http://kykxxb.cumtb.edu.cn/en/article/doi/10.19606/j.cnki.jmst.2024912activated carbonstyreneinorganic inhibitorinhibition mechanism |
| spellingShingle | LIANG Dingcheng SU Xuechao XIE Qiang ZHANG Lianxiu DENG Qingwen ZHOU Hongyang LIU Jinchang Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon 矿业科学学报 activated carbon styrene inorganic inhibitor inhibition mechanism |
| title | Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon |
| title_full | Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon |
| title_fullStr | Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon |
| title_full_unstemmed | Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon |
| title_short | Improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon |
| title_sort | improving the desorption efficiency of styrene based on inorganic inhibitor modified activated carbon |
| topic | activated carbon styrene inorganic inhibitor inhibition mechanism |
| url | http://kykxxb.cumtb.edu.cn/en/article/doi/10.19606/j.cnki.jmst.2024912 |
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