A highly active and stable organic-inorganic combined solid acid for the transesterification of glycerol under mild conditions
作者:Yuanyuan Jiang、Ruru Zhou、Huaiyuan Zhao、Boyong Ye、Yihua Long、Zhengbao Wang、Zhaoyin Hou
DOI:10.1016/s1872-2067(21)63811-1
日期:2021.10
Solid acid catalyst plays a crucial role in the petroleum refinery industry and bio-refinery technology. In this work, p-phenolsulfonic acid (PSA) was successfully grafted onto the surface of KH560-modified zirconium phosphate (K-ZrP) in a facile routine. The structure and property of this organic-inorganic combined solid acid PSA/K-ZrP-x were characterized via XRD, FTIR, 13C solid-state NMR, TG, N2
固体酸催化剂在石油炼制工业和生物炼制技术中起着至关重要的作用。在这项工作中,对苯酚磺酸 (PSA) 成功地接枝到了 KH560 改性的磷酸锆 (K-ZrP) 的表面上。该有机-无机复合固体酸PSA / K-ZrP-的结构和属性X进行了表征通过XRD,FTIR,13为固体状态NMR,TG,N 2吸附-脱附,SEM,吡啶吸附FTIR和XPS技术. 表征结果表明,用的ZrP KH560可以结合和促进PSA的接枝K-的ZrP的表面上通过其环氧环与PSA中酚羟基的缩合反应。因此,PSA/K-ZrP-2在所测试的H 3 PW 12 O 40、Amberlyst-45、HBEA、HZSM-5、ZrP、AlCl 3和FeCl 3催化剂中在甘油和乙酸甲酯之间的酯交换中表现出优异的性能和稳定性. 计算的甘油转化率达到 81.3%,对单醋精 (MAG) 和双醋精 (DAG) 的选择性为 97.9%,[H + ]剂量为