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Research on the Synthesis of Ionic Liquids/Layered Double Hydroxides Intercalation Composites and Their Application on the Removal of Naphthenic Acid from Oil
Energy & Fuels ( IF 5.3 ) Pub Date : 2017-09-14 00:00:00 , DOI: 10.1021/acs.energyfuels.7b01879
XiangSheng Shao 1 , Guanhao Liu 1 , Jingyi Yang 1 , Xinru Xu 1
Affiliation  

Three kinds of imidazolium ionic liquids were synthesized, and [Bmim][CH3COO] was selected as a result of its higher deacidification rate at a lower cost. Then, the synthetic ionic liquid was immobilized by layered double hydroxides, and the composites were characterized by Fourier transform infrared (FTIR) spectroscopy, proton nuclear magnetic resonance (1H NMR), carbon-13 nuclear magnetic resonance (13C NMR), electrospray ionization mass spectrometry (ESI–MS), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and N2 adsorption–desorption isotherms. The results showed that [Bmim][CH3COO] synthesized by the intercalation method exhibited a better deacidification property compared to the dipping method. When [Bmim][CH3COO]/Mg0.5Ca2.5Al1 (I) synthesized by the intercalation method was used as a reagent, the deacidification rate reached 97.61%. The optimum reaction conditions were at the reagent/oil mass ratio of 0.08, the reaction temperature of 313 K, and the reaction time of 1 h. Moreover, the composites still had excellent performance on deacidification after being repeatedly used 6 times.

中文翻译:

离子液体/层状双氢氧化物插层复合材料的合成及其在去除油中环烷酸中的应用研究

合成了三种咪唑鎓离子液体,并以较高的脱酸率和较低的成本选择了[Bmim] [CH 3 COO]。然后,用层状双氢氧化物固定合成离子液体,并通过傅里叶变换红外光谱(FTIR),质子核磁共振(1 H NMR),碳13核磁共振(13 C NMR),电喷雾对复合材料进行表征。电离质谱(ESI–MS),X射线衍射(XRD),扫描电子显微镜(SEM),能量色散谱(EDS)和N 2吸附-解吸等温线。结果表明,[Bmim] [CH 3与浸渍法相比,通过插层法合成的COO]表现出更好的脱酸性能。当通过插层法合成的[Bmim] [CH 3 COO] / Mg 0.5 Ca 2.5 Al 1(I)用作试剂时,脱酸率达到97.61%。最佳反应条件为:试剂/油质量比为0.08,反应温度为313 K,反应时间为1 h。而且,该复合物在重复使用6次后仍具有优异的脱酸性能。
更新日期:2017-09-14
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