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Reactive Adsorption of Gaseous Anisole by MCM–41-Supported Sulfuric Acid
| Content Provider | MDPI |
|---|---|
| Author | Zhao, Dandan Qian, Jinjin Wang, Yaxu Ma, Zichuan Ma, Xiaolong |
| Copyright Year | 2022 |
| Description | To achieve the efficient resource treatment of aromatic volatile organic compounds (VOCs) of high toxicity, this work chose anisole as a representative pollutant and investigated its removal by an MCM–41-supported sulfuric acid (SSA/MCM–41) adsorbent. The results indicate that the SSA/MCM–41 adsorbent exhibited a reactive temperature range of 110–140 °C, in which the anisole removal ratio $(X_{a}$) was greater than 95%. The collected breakthrough adsorption data fit the dose–response model. In the comprehensive analysis of the process conditions, reducing the flow rate enhanced the theoretical breakthrough time and adsorption capacity $(t_{B,th}$ and $Q_{B,th}$), while reducing the inlet concentration or raising the bed height resulted in a first increasing and then slightly decreasing trend in the $Q_{B,th}$. As a result, the highest $t_{B,th}$ and $Q_{B,th}$ were 73.82 min and 247.56 mg $g^{−1}$, respectively. The FTIR and$ ^{1}H/^{13}$C NMR results demonstrate that the adsorbed products included both 4-methoxybenzenesulfonic acid and 1-methoxy-4-(4-methoxyphenyl)sulfonylbenzene. Accordingly, the mechanism of reactive adsorption was proposed. Meanwhile, the spent SSA/MCM–41 could be desorbed and regenerated for cyclic reuse. It is believed that the results obtained will assist in promoting the application of the novel gas–solid adsorption approach in VOC treatment. |
| Starting Page | 942 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal12090942 |
| Journal | Catalysts |
| Issue Number | 9 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-25 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Water Science and Technology Supported Sulfuric Acid Mcm–41 Anisole Reactive Adsorption Sulfonation |
| Content Type | Text |
| Resource Type | Article |
