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摘要本文提出以有序复合材料为基体，负载氧化铈作为吸附剂，应用于燃油脱硫领域。从而降低燃油的硫含量，以此改善国内燃油的硫含量并使其尽量达到国际标准。
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实验通过自组装技术，选用酚醛树脂、硅酸乙酯、异丙醇铝或氯化铝为前驱体，三嵌段共聚物F127为结构导向剂合成酸性氧化物掺杂的介孔碳复合材料。实验结果表明：制备的有序介孔复合材料MP-SAC-x均具有有序的二文751方结构，比表面积为-439 m2/g，孔容为-0.45cm3/g，孔径为-6.4nm。
采用等体积浸渍法制备了载铈的Ce/MP-SAC-10吸附剂，经过热处理后成功在基体上引入氧化铈。以模拟燃油（二苯并噻吩+正辛烷）为原料，通过静态吸附脱硫方法，研究了有序介孔复合材料不同硅铝比下的吸附脱硫效果，以及负载金属前后的脱硫性能。23240
结果表明：负载氧化铈后如预期的提高了复合材料吸附剂的脱硫性能，CeO2负载量为1%时竞争吸附下脱硫效果有所提高。Ce/MP-SAC-10在有苯存在下，选择性吸附模拟燃油中的二苯并噻吩。
毕业论文关键词： 中孔炭；吸附；脱硫；金属吸附剂
Abstract
The ordered composite matrix, load cerium oxide as adsorbent, used in oil desulfurization. In order to reduce the sulfur content of fuel sulfur content, in order to improve the domestic fuel oil and make it as much as possible to achieve international standards.
Through the experiment of self-assembly technology, phenolic resin, ethyl silicate or aluminum chloride, aluminum isopropoxide as precursor selection, three block copolymer F127 as the mesoporous carbon composite structure directing agent synthesis of acidic oxide doped. The experimental results show that: the ordered mesoporous composite material prepared by MP-SAC-x has ordered six dimensional structure, specific surface area of -439 m2/g, Kong Rong -0.45cm3/g, aperture -6.4nm.
The prepared by impregnation of cerium loaded Ce/MP-SAC-10 adsorbent, after heat treatment success in the matrix into the ceria. In order to simulate the fuel (two benzothiophene + octane) as raw material, through the desulfurization method of static adsorption, ordered mesoporous composites with different Si / Al ratio of adsorption desulfurization effect is studied, the desulfurization performance before and after the metal has been loaded.
The results show that: the load of cerium oxide as expected increases the adsorption desulfurization agent composite, 1% CeO2 loading is competitive adsorption desulfurization effect increased. Ce/MP-SAC-10 in the presence of benzene, selective adsorption simulation of fuel in two benzene and thiophene.
Keywords: mesoporous carbon; adsorbent; desulfurization; adsorbent for metal ions
目录
1 绪论 1
1.1 燃油脱硫的重要性 1
1.1.1 燃油中硫化物的存在形式 1
1.1.2 世界各国对燃油含量的限制 1
1.1.3 燃油脱硫技术的发展和研究现状 2
1.2 中孔炭材料的制备方法及研究进展 2
1.2.1 中孔碳材料的制备方法 2
1.2.2 硅杂化中孔有序碳的研究 5
1.3 燃油脱硫的主要技术 6
1.4 本课题的选题思路 7
2 实验部分 8
2.1 试剂与仪器 8
2.2 实验步骤 9
2.2.1 酚醛树脂的制备 9
2.2.2 模板法合成中孔有序炭 9
2.2.3 用等体积浸渍法负载铈离子 10
2.2.4 静态脱硫实验 10
2.3 测试与分析 11
2.3.1 X-射线衍射（XRD）分析 11
2.3.2 热重（TG）分析 11
2.3.3 比表面测试（BET） 11