發(fā)布時間：2021-11-06 10:18

　　從化石燃料中脫硫仍然存在許多環(huán)境問題、工業(yè)問題、甚至是經(jīng)濟(jì)問題。在很多情況下,硫化合物、脫硫成本高、催化性能不穩(wěn)定和燃燒效率低都是非環(huán)境良性影響。因此,基于有效地脫硫方法的發(fā)展,人們堅持不懈的努力解決這些障礙以替代加氫脫硫,加氫脫硫技術(shù)效率低并且所需環(huán)境惡劣。催化氧化脫硫可以在溫和的條件下進(jìn)行,是一種非常具有前景的脫硫過程,但是催化劑的溶解性、溶劑的重復(fù)利用是獲得超低硫柴油不可避免會面臨的阻礙。利用離子液體代替復(fù)雜的有機(jī)溶劑不僅能夠很容易的重復(fù)使用,而且還能提高催化效率。因此,我們采用離子液體和Keggin型含釩多金屬氧酸鹽進(jìn)行催化氧化脫硫。結(jié)果清楚地表明,催化劑的催化氧化脫硫效率達(dá)到99.14%,并且循環(huán)使用5次整個催化體系的催化效果仍然很好。因此,催化氧化脫硫的簡易性和高活性使得它能夠代替加氫脫硫廣泛地適用于工業(yè)脫硫。 

【文章來源】：東北師范大學(xué)吉林省 211工程院校 教育部直屬院校

【文章頁數(shù)】：51 頁

【學(xué)位級別】：碩士

【文章目錄】：
摘要
Abstract
Abbreviations
Chapter1: Introduction
    1.1 General context
    1.2 Scopes and Objectives of this thesis
    1.3 Desulfurization technologies
        1.3.1 Hydrodesulfurization: current process
        1.3.2 Non-Hydrodesulfurization processes
    1.4 Polyoxometalates
        1.4.1 A little bite of history
        1.4.2 Synthesis methods of polyoxometalates
        1.4.3 Polyoxometalates- properties
        1.4.4 Potential and current applications of polyoxometalates
    1.5 Desulfurization using POMs as catalysts
Chapter2: Experimental Section
    2.1. Materials and instruments
    2.2. Preparation of ionic liquid and model oil
    2.3. Preparation of model oil
    2.4. Synthesis of Vanadium-containing POMs
        2.4.1. Synthesis of H4PW11VO40 (PW11V),
        2.4.2. Synthesis of K6PW9V3O40 (PW9V3)
        2.4.3 Synthesis of Surfactant-Encapsulated POMs (SEPs)
    2.5 ECODS for oil model
Chapter3: Results and Discussion
    3.1. FTIR spectroscopy
    3.2. UV absorption
    3.3. TGA analysis
    3.4. Influence of different desulfurization systems on removal of DBT
    3.5. Activity of various surfactant-encapsulated POMs on the oxidation of DBT
    3.6. Influence of oil/ (STA)6PW9V3 (mass ratio) and O/S (molar ratio)
    3.7. Influence of temperature on DBT removal
    3.8. Kinetic study on catalytic oxidation of sulfur compounds
    3.9. Influence of different sulfur-containing compounds
    3.10. System Recycle
    3.11. Mechanism of the oxidation reaction
Chapter4: Conclusion and Future prospective
    4.1. Conclusion
    4.2. Feature Perspective
References
Appendices
Acknowledgement
碩士期間公開發(fā)表論文及著作情況


【參考文獻(xiàn)】：
期刊論文
[1]燃油氧化脫硫(英文)[J]. 蔣宗軒,呂宏纓,張永娜,李燦.  催化學(xué)報. 2011(05)



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