Deep Desulfurization of Model Fuel by Vanadium-containing Po

发布时间：2021-11-06 10:18

　　从化石燃料中脱硫仍然存在许多环境问题、工业问题、甚至是经济问题。在很多情况下,硫化合物、脱硫成本高、催化性能不稳定和燃烧效率低都是非环境良性影响。因此,基于有效地脱硫方法的发展,人们坚持不懈的努力解决这些障碍以替代加氢脱硫,加氢脱硫技术效率低并且所需环境恶劣。催化氧化脱硫可以在温和的条件下进行,是一种非常具有前景的脱硫过程,但是催化剂的溶解性、溶剂的重复利用是获得超低硫柴油不可避免会面临的阻碍。利用离子液体代替复杂的有机溶剂不仅能够很容易的重复使用,而且还能提高催化效率。因此,我们采用离子液体和Keggin型含钒多金属氧酸盐进行催化氧化脱硫。结果清楚地表明,催化剂的催化氧化脱硫效率达到99.14%,并且循环使用5次整个催化体系的催化效果仍然很好。因此,催化氧化脱硫的简易性和高活性使得它能够代替加氢脱硫广泛地适用于工业脱硫。 

【文章来源】：东北师范大学吉林省 211工程院校 教育部直属院校

【文章页数】：51 页

【学位级别】：硕士

【文章目录】：
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
硕士期间公开发表论文及著作情况


【参考文献】：
期刊论文
[1]燃油氧化脱硫(英文)[J]. 蒋宗轩,吕宏缨,张永娜,李灿.  催化学报. 2011(05)



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