摘要近年来由于世界各地极端天气的爆发日益增多，大气污染成为已经成为人类急待解决的问题之一。在这一背景下，燃油的深度脱硫已经成为一项重要研究课题。
本文采用等体积浸渍法制备了铜改性的有序介孔碳硅复合材料(MCS) ，并将其与铜改性的纯硅(SBA-15)和纯碳(CMK-3)相比较，研究其燃油脱硫的性能。实验结果显示：与载铜的MCS与铜改性的纯硅(SBA-15)和纯碳(CMK-3)相比，铜改性的有序介孔碳硅复合材料(MCS)对含苯的模拟燃油中DBT的吸附具有更高的选择性。尤其是铜的质量分数为10％的改性有序介孔碳硅复合材料(MCS)对含苯的模拟燃油中DBT的选择性吸附最高。这主要是由于金属铜在MCS表面较高的分散性以及铜与炭组分对DBT的协同作用，而铜的高分散得益于硅和碳组分相互贯穿所形成的杂化孔表面。34162
毕业论文关键词： 介孔碳；铜改性；吸附脱硫；二苯并噻吩
Abstract
In recent years, all over the world since the outbreak of the increasing number of extreme weather, air pollution has become a problem which need to solve them urgently. Against this background, deep desulfurization of fuel has become an important research topic.
In this study, copper-modified ordered mesoporous carbon-silica nanocomposites (MCSs) were prepared by incipient wetness impregnation method. For comparison, the adsorptive desulfurization capacity for copper species supported on pure silica SBA-15 and pure carbonaceous CMK-3 was investigated. The experimental results show that: Compared with the pure silica SBA-15 and pure carbonaceous CMK-3 modified by copper, the copper-modified MCS has higher selectivity for DBT in competition with benzene. Specially, MCS with 10wt.％of copper performed highest selectivity for DBT in competition with benzene. The excellent performanceof copper-modified MCS could be attributed to its hybrid mesoporous carbon-silicanature which is favorable for high dispersion extent of copper and synergistic effect between the carbon substrate and the supported copper species.
Keywords:  mesoporous carbon; copper modified; Adsorptive desulfurization; Dibenzothiophene
目录
1 绪论    1
1.1 燃油脱硫背景    1
1.2 燃油脱硫技术概况    2
1.3 燃油脱硫的意义    5
2 实验部分    7
2.1 实验原料与仪器    7
2.1.1 实验试剂和原料    7
2.1.2 实验仪器及其主要参数    8
2.2 吸附剂的合成    8
2.2.1 介孔碳硅复合材料的制备    8
2.2.2 金属改性吸附剂的制备    9
2.3 脱硫实验    9
2.3.1 模拟燃油的配置    9
2.3.2 静态等温线测定    10
2.3.4 吸附等温线的测定    10
2.4测试与分析    10
2.4.1 热重分析    10
2.4.2 扫描电镜（SEM）分析    11
2.4.3 X-射线衍射（XRD)    11
2.4.4 气相色谱仪    11
3 实验结果与讨论    13
3.1 不同碳硅比的影响    13
3.1.1 热重分析    13
3.1.2  XRD分析    14
3.1.3 脱硫分析对比    15
3.2 浸渍法负载铜的条件优化    16
3.2.1 不同还原温度得到的样品XRD分析    16
3.2.2 不同浸渍方式得到的样品XRD分析    16
3.3 不同负载方式的影响    17
3.3.1 结构表征    18
3.3.2 对比吸附剂的选择    20
3.4 脱硫效果分析    20
3.5 等温吸附线    22 载铜有序介孔碳硅复合材料的制备及其对燃油吸附脱硫性能的研究:http://www.youerw.com/cailiao/lunwen_31613.html