催化氧化法去除渣油中硫化物的研究（英文撰写）
发布时间：2021-05-09 00:36
近年来随着环保要求日益严格,重质油脱硫已成为一项迫在眉睫的任务,研究开发新型的重质原料油脱硫技术势在必行。加氢脱硫是最传统的石油馏分脱硫技术,其能脱除大部分硫化物,但难以脱除噻吩类硫化物,而噻吩类硫化物却是渣油中的主要硫化物。氧化脱硫（ODS）通常在常压和中等温度下进行,且无需使用昂贵的氢气。除此之外,ODS常用于脱除轻质油品中难以脱除的噻吩硫。因此,本文利用噻吩类硫化物氧化后极性增加,提高其在极性溶剂中溶解度的原理,从而深度脱除重质油品中的硫化物。首先用过氧化物氧化剂搭配催化剂对模型油中的二苯并噻吩（DBT）进行氧化,选用乙腈作为萃取剂,利用红外光谱、气相色谱-质谱联用技术对反应产物进行分析,研究了氧化脱硫机理。然后使用减压渣油进行催化氧化萃取脱硫,考察了20O/S（摩尔比）、反应时间、反应温度等工艺参数对氧化脱硫性能的影响。得到结论如下:1.以过氧化环己酮和MoO3为氧化剂/催化剂体系,考察不同反应参数:反应温度,反应时间,催化剂用量和CYHPO/DBT摩尔比的影响。在120℃,反应时间6小时和O/S比为2.0的优化条件下,DBT的转化率达到了2095.6%。2.使用过氧化羟基异丙...
【文章来源】：华东理工大学上海市 211工程院校 教育部直属院校
【文章页数】：69 页
【学位级别】：硕士
【文章目录】：
Abstract
摘要
Chapter 1 Foreword
1.1 Research background
1.2 Research idea
1.3 Research content
Chapter 2 Research progress of crude oil desulfurization
2.1 Crude oil
2.1.1 Classification of crude oils
2.1.2 Chemical composition of crude oils
2.2 Existing forms of sulfur
2.3 Hazards of sulfur fuel combustion to the environment
2.4 Industrial status of residual oil
2.5 Development of desulfurization process
2.5.1 Hydrodesulfurization Technology
2.5.2 Biological desulfurization
2.5.3 Extractive desulfurization methods
2.5.4 Adsorption desulfurization
2.5.5 Oxidation desulfurization
2.6 Proposal for the subject
2.6.1 Research significance and content
Chapter 3 Chemical reagents and measurement methods
3.1 Experimental
3.1.1 Chemical reagents
3.1.2 Experimental instruments and devices
3.2 Model oil
3.2.1 Selection of sulfide
3.2.2 Selection of solvent
3.2.3 Preparation of model oil
3.3 Testing instruments
3.3.1 Sulfur detection apparatus
3.4 Flow chart of the experiment
3.5 Desulfurization rate with different oxidation agents
3.6 Selection of catalyst
3.7 Summary of this chapter
Chapter 4 Study on the oxidative desulfurization process of model oil
4.1 Experimental
4.1.1 Chemical reagent
4.1.2 Instruments and apparatus
4.1.3 Experimental steps
4.1.4 Micro high-pressure reactor
4.2 Testing methodology
4.2.1 Fourier infrared spectroscopy
4.2.2 Gas chromatography-mass spectrometry
4.3 Optimization of reaction conditions
4.3.1 Rate of desulfurization with temperature
4.3.2 Rate of desulfurization upon time
4.3.3 Rate of desulfurization upon pressure
4.3.4 Rate of desulfurization upon molar ratio (O/S)
4.4 FTIR Results
4.5 GC-MS results
4.6 Oxidative mechanism of DBT in model oil
4.7 Conclusion of this chapter
Chapter 5 Study on the oxidative desulfurization process of residual oil
5.1 Experimental
5.1.1 Chemical reagents
5.1.2 Experimental instruments and devices
5.1.3 Experimental steps
5.2 Process parameters optimization
5.2.1 Effects of temperature on desulfurization rate
5.2.2 Effect of pressure on desulfurization rate
5.2.3 Effect of O/S ratio on desulfurization rate
5.2.4 Effect of reaction time on desulfurization rate
5.3 Four-component separation analyses
5.3.1 Extraction of asphalt from crude oil
5.3.2 Saturated, aromatic, and colloidal separation (SARA)
5.3.3 Results of SARA analysis
5.4 Conclusion of this chapter
Chapter 6 Conclusion and future outlook
6.1 Conclusion
6.2 Future outlook
References
Acknowledgement
本文编号：3176267
【文章来源】：华东理工大学上海市 211工程院校 教育部直属院校
【文章页数】：69 页
【学位级别】：硕士
【文章目录】：
Abstract
摘要
Chapter 1 Foreword
1.1 Research background
1.2 Research idea
1.3 Research content
Chapter 2 Research progress of crude oil desulfurization
2.1 Crude oil
2.1.1 Classification of crude oils
2.1.2 Chemical composition of crude oils
2.2 Existing forms of sulfur
2.3 Hazards of sulfur fuel combustion to the environment
2.4 Industrial status of residual oil
2.5 Development of desulfurization process
2.5.1 Hydrodesulfurization Technology
2.5.2 Biological desulfurization
2.5.3 Extractive desulfurization methods
2.5.4 Adsorption desulfurization
2.5.5 Oxidation desulfurization
2.6 Proposal for the subject
2.6.1 Research significance and content
Chapter 3 Chemical reagents and measurement methods
3.1 Experimental
3.1.1 Chemical reagents
3.1.2 Experimental instruments and devices
3.2 Model oil
3.2.1 Selection of sulfide
3.2.2 Selection of solvent
3.2.3 Preparation of model oil
3.3 Testing instruments
3.3.1 Sulfur detection apparatus
3.4 Flow chart of the experiment
3.5 Desulfurization rate with different oxidation agents
3.6 Selection of catalyst
3.7 Summary of this chapter
Chapter 4 Study on the oxidative desulfurization process of model oil
4.1 Experimental
4.1.1 Chemical reagent
4.1.2 Instruments and apparatus
4.1.3 Experimental steps
4.1.4 Micro high-pressure reactor
4.2 Testing methodology
4.2.1 Fourier infrared spectroscopy
4.2.2 Gas chromatography-mass spectrometry
4.3 Optimization of reaction conditions
4.3.1 Rate of desulfurization with temperature
4.3.2 Rate of desulfurization upon time
4.3.3 Rate of desulfurization upon pressure
4.3.4 Rate of desulfurization upon molar ratio (O/S)
4.4 FTIR Results
4.5 GC-MS results
4.6 Oxidative mechanism of DBT in model oil
4.7 Conclusion of this chapter
Chapter 5 Study on the oxidative desulfurization process of residual oil
5.1 Experimental
5.1.1 Chemical reagents
5.1.2 Experimental instruments and devices
5.1.3 Experimental steps
5.2 Process parameters optimization
5.2.1 Effects of temperature on desulfurization rate
5.2.2 Effect of pressure on desulfurization rate
5.2.3 Effect of O/S ratio on desulfurization rate
5.2.4 Effect of reaction time on desulfurization rate
5.3 Four-component separation analyses
5.3.1 Extraction of asphalt from crude oil
5.3.2 Saturated, aromatic, and colloidal separation (SARA)
5.3.3 Results of SARA analysis
5.4 Conclusion of this chapter
Chapter 6 Conclusion and future outlook
6.1 Conclusion
6.2 Future outlook
References
Acknowledgement
本文编号：3176267
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