Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid
Efficient removal of cumene from gaseous streams and recovery of its derivatives was accomplished using a MCM-41-supported sulfuric acid (SSA/MCM-41) adsorbent. The results indicated that the removal performance of the SSA/MCM-41 for cumene was significantly influenced by the process conditions such...
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MDPI AG
2022-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/16/5129 |
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| author | Dandan Zhao Yuheng Liu Xiaolong Ma Jinjin Qian Zichuan Ma |
| author_facet | Dandan Zhao Yuheng Liu Xiaolong Ma Jinjin Qian Zichuan Ma |
| author_sort | Dandan Zhao |
| collection | DOAJ |
| description | Efficient removal of cumene from gaseous streams and recovery of its derivatives was accomplished using a MCM-41-supported sulfuric acid (SSA/MCM-41) adsorbent. The results indicated that the removal performance of the SSA/MCM-41 for cumene was significantly influenced by the process conditions such as bed temperature, inlet concentration, bed height, and flow rate. The dose–response model could perfectly describe the collected breakthrough adsorption data. The SSA/MCM-41 adsorbent exhibited a reactive temperature region of 120–170 °C, in which the cumene removal ratios (<i>X</i><sub>c</sub>) were greater than 97%. Rising the bed height or reducing the flow rate enhanced the theoretical adsorption performance metrics, such as theoretical breakthrough time (<i>t</i><sub>B,th</sub>) and theoretical breakthrough adsorption capacity (<i>Q</i><sub>B,th</sub>), whereas increasing the inlet concentration resulted in <i>t</i><sub>B,th</sub> shortening and <i>Q</i><sub>B,th</sub> rising. As demonstrated in this paper, the highest <i>t</i><sub>B,th</sub> and <i>Q</i><sub>B,th</sub> were 69.60 min and 324.50 mg g<sup>−1</sup>, respectively. Meanwhile, the spent SSA/MCM-41 could be desorbed and regenerated for cyclic reuse. Moreover, two recoverable adsorbed products, 4-isopropylbenzenesulfonic acid and 4, 4′-sulfonyl bis(isopropyl-benzene), were successfully separated and identified using FTIR and <sup>1</sup>H/<sup>13</sup>C NMR characterization. Accordingly, the relevance of a reactive adsorption mechanism was confirmed. This study suggests that the SSA/MCM-41 has remarkable potential for application as an adsorbent for the resource treatment of cumene pollutants. |
| first_indexed | 2024-03-09T04:02:14Z |
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| language | English |
| last_indexed | 2024-03-09T04:02:14Z |
| publishDate | 2022-08-01 |
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| record_format | Article |
| series | Molecules |
| spelling | doaj.art-275eddc8501442be93b31355c09e117b2023-12-03T14:11:03ZengMDPI AGMolecules1420-30492022-08-012716512910.3390/molecules27165129Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric AcidDandan Zhao0Yuheng Liu1Xiaolong Ma2Jinjin Qian3Zichuan Ma4Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, ChinaHebei Key Laboratory of Innovative Drug Research and Evaluation, College of Pharmaceutical Sciences, Hebei Medical University, Shijiazhuang 050017, ChinaSchool of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, ChinaHebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, ChinaHebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, ChinaEfficient removal of cumene from gaseous streams and recovery of its derivatives was accomplished using a MCM-41-supported sulfuric acid (SSA/MCM-41) adsorbent. The results indicated that the removal performance of the SSA/MCM-41 for cumene was significantly influenced by the process conditions such as bed temperature, inlet concentration, bed height, and flow rate. The dose–response model could perfectly describe the collected breakthrough adsorption data. The SSA/MCM-41 adsorbent exhibited a reactive temperature region of 120–170 °C, in which the cumene removal ratios (<i>X</i><sub>c</sub>) were greater than 97%. Rising the bed height or reducing the flow rate enhanced the theoretical adsorption performance metrics, such as theoretical breakthrough time (<i>t</i><sub>B,th</sub>) and theoretical breakthrough adsorption capacity (<i>Q</i><sub>B,th</sub>), whereas increasing the inlet concentration resulted in <i>t</i><sub>B,th</sub> shortening and <i>Q</i><sub>B,th</sub> rising. As demonstrated in this paper, the highest <i>t</i><sub>B,th</sub> and <i>Q</i><sub>B,th</sub> were 69.60 min and 324.50 mg g<sup>−1</sup>, respectively. Meanwhile, the spent SSA/MCM-41 could be desorbed and regenerated for cyclic reuse. Moreover, two recoverable adsorbed products, 4-isopropylbenzenesulfonic acid and 4, 4′-sulfonyl bis(isopropyl-benzene), were successfully separated and identified using FTIR and <sup>1</sup>H/<sup>13</sup>C NMR characterization. Accordingly, the relevance of a reactive adsorption mechanism was confirmed. This study suggests that the SSA/MCM-41 has remarkable potential for application as an adsorbent for the resource treatment of cumene pollutants.https://www.mdpi.com/1420-3049/27/16/5129supported sulfuric acidMCM-41cumenereactive adsorptionsulfonation |
| spellingShingle | Dandan Zhao Yuheng Liu Xiaolong Ma Jinjin Qian Zichuan Ma Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid Molecules supported sulfuric acid MCM-41 cumene reactive adsorption sulfonation |
| title | Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid |
| title_full | Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid |
| title_fullStr | Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid |
| title_full_unstemmed | Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid |
| title_short | Reactive Adsorption Performance and Behavior of Gaseous Cumene on MCM-41 Supported Sulfuric Acid |
| title_sort | reactive adsorption performance and behavior of gaseous cumene on mcm 41 supported sulfuric acid |
| topic | supported sulfuric acid MCM-41 cumene reactive adsorption sulfonation |
| url | https://www.mdpi.com/1420-3049/27/16/5129 |
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