| 三元低共熔溶剂促进球磨后高硫石油焦氧化脱硫 |
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| 引用本文： | 龚佳鸿,华明清,杨宁,张森琪,吴沛文,朱文帅.三元低共熔溶剂促进球磨后高硫石油焦氧化脱硫[J].石油学报(石油加工),2023,39(2):331-339. |
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| 作者姓名： | 龚佳鸿 华明清 杨宁 张森琪 吴沛文 朱文帅 |
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| 作者单位： | 江苏大学 化学化工学院，江苏 镇江 212013 |
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| 基金项目： | 国家自然科学基金项目（22178154）和江苏省自然科学基金项目（BK20190852）资助 |
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| 摘 要： | 为实现高硫石油焦的有效脱硫使其“变废为宝”，本研究提出了一种基于机械球磨的高硫石油焦氧化脱硫新方法。首先使用球磨技术对高硫石油焦进行预处理，以增加石油焦的比表面积，暴露更多硫参与氧化。实验结果表明：与氧化钙共球磨后石油焦比表面积增加了8倍以上；在高硫石油焦球磨预处理的基础上，以苯磺酸基三元低共熔溶剂(DES)为反应溶剂及催化剂，30%双氧水(H2O2)为氧化剂，在70℃的温和条件下成功实现高硫石油焦的氧化脱硫，其硫质量分数可从4.46%降至2.09%。通过X射线衍射(XRD)、拉曼光谱(Raman)及扫描电子显微镜(SEM)探究了石油焦球磨及氧化脱硫前后结构的变化。通过傅里叶变换红外光谱(FT-IR)、X射线光电子能谱(XPS)以及XRD分析了石油焦中硫的转化。通过电子自旋共振(ESR)试验证实了苯磺酸基三元DES的催化作用。
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| 关 键 词： | 高硫石油焦 机械球磨 低共熔溶剂 氧化脱硫 温和条件 |
| 收稿时间： | 2021-11-18 |
Oxidation Desulfurization of Ball-Milled High-Sulfur Petroleum Coke Promoted by Ternary Deep Eutectic Solvent |
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| GONG Jiahong,HUA Mingqing,YANG Ning,ZHANG Senqing,WU Peiwen,ZHU Wenshuai.Oxidation Desulfurization of Ball-Milled High-Sulfur Petroleum Coke Promoted by Ternary Deep Eutectic Solvent[J].Acta Petrolei Sinica (Petroleum Processing Section),2023,39(2):331-339. |
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| Authors: | GONG Jiahong HUA Mingqing YANG Ning ZHANG Senqing WU Peiwen ZHU Wenshuai |
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| Affiliation: | School of chemistry and chemical engineering, Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | To realize the efficient desulfurization of high sulfur petroleum coke, a new method of oxidative desulfurization of high sulfur petroleum coke based on mechanical ball milling is proposed to make waste profitable. Firstly, high sulfur petroleum coke was pretreated by ball milling to increase the specific surface area of petroleum coke and expose more sulfur to participate in oxidation. The experimental results show that the specific surface area of petroleum coke is increased by more than 8 times after ball milling with calcium oxide. Based on the ball milling pretreatment of high sulfur petroleum coke, the oxidative desulfurization of high sulfur petroleum coke has been successfully realized under the mild condition of 70 ℃ when using benzene sulfonic acid based ternary deep eutectic solvent (DES) as solvent and catalyst, and 30% hydrogen peroxide (H2O2) as oxidant, the mass fraction of sulfur can be reduced from 4.46% to 2.09%. The structural changes of petroleum coke before and after ball grinding and oxidative desulfurization were explored by X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscope (SEM). The sulfur conversion in petroleum coke was analyzed by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and XRD. The catalysis of benzenesulfonic acid ternary DES was confirmed by electron spin resonance (ESR) test. |
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| Keywords: | high-sulfur petroleum coke mechanical ball milling deep eutectic solvent oxidative desulfurization mild condition |
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