Petroleum Science >2016,??Issue 4:??760-769 DOI: https://doi.org/10.1007/s12182-016-0127-0
Extractive oxidative desulfurization of model oil/crude oil using KSF montmorillonite-supported 12-tungstophosphoric acid Open?Access
文章信息
作者：Ezzat Rafiee,Sadegh Sahraei and Gholam Reza Moradi
作者單位：
Faculty of Chemistry, Razi University, Kermanshah 67149, Iran; Institute of Nano Science and Nano Technology, Razi University, Kermanshah 67149, Iran;Department of Chemical Engineering, Faculty of Engineering, Razi University, Kermanshah 67149, Iran;Department of Chemical Engineering, Faculty of Engineering, Razi University, Kermanshah 67149, Iran
投稿時間：2015-11-23
引用方式：Rafiee, E., Sahraei, S. & Moradi, G.R. Pet. Sci. (2016) 13: 760. https://doi.org/10.1007/s12182-016-0127-0
文章摘要
12-Tungstophosphoric acid (PW) supported on KSF montmorillonite, PW/KSF, was used as catalyst for deep oxidative desulfurization (ODS) of mixed thiophenic compounds in model oil and crude oil under mild conditions using hydrogen peroxide (H2O2) as an oxidizing agent. A one-factor-at-a-time method was applied for optimizing the parameters such as temperature, reaction time, amount of catalyst, type of extractant and oxidant-tosulfur compounds (S-compounds) molar ratio. The corresponding products can be easily removed from the model oil by using ethanol as the best extractant. The results showed high catalytic activity of PW/KSF in the oxidative removal of dibenzothiophene (DBT) and mixed thiophenic model oil under atmospheric pressure at 75℃ in a biphasic system. To investigate the oxidation and adsorption effects of crude oil composition on ODS, the effects of cyclohexene, 1,7-octadiene and o-xylene with different concentrations were studied.
關鍵詞
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Tungstophosphoric acid · Montmorillonite · Catalyst · Oxidative desulfurization · Clean fuel