Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption
Industrial pharmaceutical wastewater usually contains butyl acetate (BA) with a concentration of 1 wt%–7 wt%, and the traditional method for BA recovery is distillation with high energy consumption. Adsorption method is developed to recover BA with low concentration for the high efficiency and low e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2024-06-01
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| Series: | Green Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952823000237 |
| _version_ | 1797259626843996160 |
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| author | Chi Ma Lihong Zhao Zhengxin Mao Hao Su Qingfen Liu |
| author_facet | Chi Ma Lihong Zhao Zhengxin Mao Hao Su Qingfen Liu |
| author_sort | Chi Ma |
| collection | DOAJ |
| description | Industrial pharmaceutical wastewater usually contains butyl acetate (BA) with a concentration of 1 wt%–7 wt%, and the traditional method for BA recovery is distillation with high energy consumption. Adsorption method is developed to recover BA with low concentration for the high efficiency and low energy consumption. Medium polar polyacrylate resins with macroporous structure of 233.1 nm and average particle size of about 526.5 μm are successfully synthesized by suspension polymerization and used for the BA adsorption and desorption. The maximum adsorption capacity reaches 171.1 mg g−1 with relative standard deviation (RSD) value of 0.2%, which is more than twice the results in the literature. The BA desorption rate is 97.0% at 100 °C with RSD value of 0.4%, and the resins are beneficial to the reuse in the adsorption-desorption cycle. The adsorption thermodynamics and kinetics are investigated, and the BA adsorption is a spontaneous and endothermic process with the increase of disorder degree. This process is mainly contributed by physical absorption and agree well with Freundlich model and pseudo-first-order adsorption kinetic model. The adsorption method avoids boiling a large amount of wastewater and hopefully provides a novel alternative technology for the BA recovery. |
| first_indexed | 2024-04-24T23:12:26Z |
| format | Article |
| id | doaj.art-3cbe1b9204254d80bb058a4370fe1d70 |
| institution | Directory Open Access Journal |
| issn | 2666-9528 |
| language | English |
| last_indexed | 2024-04-24T23:12:26Z |
| publishDate | 2024-06-01 |
| publisher | KeAi Communications Co. Ltd. |
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| series | Green Chemical Engineering |
| spelling | doaj.art-3cbe1b9204254d80bb058a4370fe1d702024-03-17T07:59:09ZengKeAi Communications Co. Ltd.Green Chemical Engineering2666-95282024-06-0152236244Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorptionChi Ma0Lihong Zhao1Zhengxin Mao2Hao Su3Qingfen Liu4CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, ChinaCAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, ChinaCAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, ChinaCAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, ChinaCAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China; Corresponding author.Industrial pharmaceutical wastewater usually contains butyl acetate (BA) with a concentration of 1 wt%–7 wt%, and the traditional method for BA recovery is distillation with high energy consumption. Adsorption method is developed to recover BA with low concentration for the high efficiency and low energy consumption. Medium polar polyacrylate resins with macroporous structure of 233.1 nm and average particle size of about 526.5 μm are successfully synthesized by suspension polymerization and used for the BA adsorption and desorption. The maximum adsorption capacity reaches 171.1 mg g−1 with relative standard deviation (RSD) value of 0.2%, which is more than twice the results in the literature. The BA desorption rate is 97.0% at 100 °C with RSD value of 0.4%, and the resins are beneficial to the reuse in the adsorption-desorption cycle. The adsorption thermodynamics and kinetics are investigated, and the BA adsorption is a spontaneous and endothermic process with the increase of disorder degree. This process is mainly contributed by physical absorption and agree well with Freundlich model and pseudo-first-order adsorption kinetic model. The adsorption method avoids boiling a large amount of wastewater and hopefully provides a novel alternative technology for the BA recovery.http://www.sciencedirect.com/science/article/pii/S2666952823000237Butyl acetate recoveryResin adsorptionDesorptionThermodynamicsKinetics |
| spellingShingle | Chi Ma Lihong Zhao Zhengxin Mao Hao Su Qingfen Liu Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption Green Chemical Engineering Butyl acetate recovery Resin adsorption Desorption Thermodynamics Kinetics |
| title | Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption |
| title_full | Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption |
| title_fullStr | Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption |
| title_full_unstemmed | Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption |
| title_short | Alternative technology for the recovery of butyl acetate with low concentration: high capacity adsorbent and high efficiency adsorption |
| title_sort | alternative technology for the recovery of butyl acetate with low concentration high capacity adsorbent and high efficiency adsorption |
| topic | Butyl acetate recovery Resin adsorption Desorption Thermodynamics Kinetics |
| url | http://www.sciencedirect.com/science/article/pii/S2666952823000237 |
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