Preparation and process optimization of Ag-Ce modified MIL-101 desulfurization adsorbent
GONG Ming-yue1, HE Ying-ming2, XIN Ying1, JIANG Wei1, WANG Dong-jun1
1. Daqing Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Daqing 163000, China; 2. The Research Institute of Exploration and Development, PetroChina Daqing Oilfield Company, Daqing 163000, China
Abstract: Ag-Ce/MIL-101 adsorbent is successfully prepared via loading Ag and Ce onto MIL-101(Cr),and characterized via XRD,SEM,BET and ICP methods.The effect of preparation conditions on the adsorption of benzothiophene (BT) by Ag-Ce/MIL-101 is evaluated.It is shown that the regular structure of MIL-101 remains unchanged after the loading of metals.Compared with MIL-101,the specific surface area and pore volume of Ag-Ce/MIL-101 drop to a certain extent.The optimal preparation conditions suitable for Ag-Ce/MIL-101 adsorbent are as follows:Ag is loaded before Ce,the loading concentration of both silver ion and cerium ion is 40 mmol·L-1,the dosages of AgNO3 solution and Ce(NO3)3 solution are both 2 mL,the loading temperature is 150℃,and the loading time is 9 h.The adsorption effect of Ag-Ce/MIL-101 on benzothiophene reaches 33.9 mg·g-1 when the dosage of adsorbent is 0.1 g,the dosage of model oil is 20 mL,and the adsorption has been performed at 30℃ for 12 h.
巩明月, 赫英明, 辛颖, 姜伟, 王东军. 银、铈改性MIL-101脱硫吸附剂的制备与优化[J]. 现代化工, 2022, 42(8): 188-192.
GONG Ming-yue, HE Ying-ming, XIN Ying, JIANG Wei, WANG Dong-jun. Preparation and process optimization of Ag-Ce modified MIL-101 desulfurization adsorbent. Modern Chemical Industry, 2022, 42(8): 188-192.
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