Study on the Desulfurization of High-Sulfur Crude Oil by the Electrochemical Method
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- 作者：Dong Liu ; Ming Li ; Raja L. Al-Otaibi ; Linhua Song ; Wen Li ; Qingyin Li ; Hamid O. Almigrin ; Zifeng Yan
- 刊名：Energy & Fuels
- 出版年：2015
- 出版时间：November 19, 2015
- 年：2015
- 卷：29
- 期：11
- 页码：6928-6934
- 全文大小：358K
- ISSN：1520-5029
文摘
The SnSb intermetallic compound was synthesized by chemical precipitation with NaBH4 as a reducer, and then it was applied in the electrodesulfurization of Saudi crude oil as functional desulfurization material. The prepared SnSb intermetallic compound was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectrometry (EDS). Additionally, the raw material and treated oil were analyzed through gas chromatography鈥損ulsed flame photometric detector (GC鈥揚FPD) and gas chromatography鈥搈ass spectrometry (GC鈥揗S). The results showed that the SnSb intermetallic compound was restored with NaBH4 with a larger particle size, lower surface area, lower crystallinity, and 鈥渂rick-shaped鈥?structure. The desulfurization efficiency for sulfocompounds with a small molecular weight is higher. It should be especially noted that benzonaphthothiophene was hardly removed by traditional hydrogenation desulfurization, whereas it could be subtracted partly via electrochemical adsorption desulfurization. The proposed desulfurization mechanism would be attributed to the adsorption reactions on the surface of the SnSb intermetallic compound.