有序中孔炭负载金属吸附剂用于燃油深度脱硫的应用研究 摘要
本次项目提出以有序中孔炭为原料，搭载金属吸附剂作为脱硫剂并应用于燃油脱硫。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。实验通过软模板法自主组装、硬模板法制备有序中孔炭，以蔗糖、酚醛树脂作为碳源，在模板中负载金属吸附剂，来制备燃油深度脱硫的中孔炭。
实验结果表明：制备的SBA-15具有有序的二文优方结构，且比表面积、孔体积、平均孔径都比较大。CMK-3有序的二文优方结构完全是SBA-15有序结构的复制。CMK-3经过氢氧化钠的刻蚀，介孔碳中的硅模板几乎被完全出去。负载金属Ni与预期想象的不一样生成了Ni2Si而不是Ni或者NiO2。可能是600℃下Ni和SiC反映生成了Ni2Si。MP-CS-32具有有序的二文优方结构，且刻蚀质量分数为10%的NaOH能有效的去除MP-CS-32孔道内堆积的二氧化硅，MP-CS-32孔道内的SiO2的量随着加入的F127、酚醛树脂的量的增多而减少。
关键词： 中孔炭；吸附；脱硫；金属吸附剂
Abstract
This project proposes to ordered mesoporous carbon as raw material, with metal adsorbent as desulfurization agent and its application 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 possible to meet international standards. Through the experiment of soft template self-assembly, hard template synthesis of ordered mesoporous carbon, sucrose, phenolic resin as carbon source, in the template loading metal adsorbent, preparation of mesoporous carbon to deep desulfurization of fuel.
The experimental results show that: the prepared SBA-15 has ordered six dimensional structure, and specific surface area, pore volume, average pore diameter are bigger. CMK-3 ordered six dimensional structure is completely SBA-15 ordered structure replication. CMK-3 after sodium hydroxide etching silicon templates, mesoporous carbon was almost completely out of. Supported metal Ni and expected not to generate the Ni2Si rather than Ni or NiO2. May be Ni and SiC at 600 ℃ reflect the formation of Ni2Si. MP-CS-32 has ordered six dimensional structure, and impregnating the mass fraction of 10% NaOH can effectively remove the silica pores of MP-CS-32 accumulation, SiO2 MP-CS-32 channel in the volume decreases with increasing the addition of F127, the amount of phenolic resin.
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燃油中硫化物的组成 1
1.1.2世界各国对燃油含量的限制 1
1.1.3燃油脱硫的重要意义 1
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中孔碳的表面化学改性 4
1.3燃油深度脱硫的主要技术 6
1.4本课题的选题思路 9
2 实验部分 10
2.1试剂与仪器 10
2.2实验步骤 11
2.2.1硬模板法合成中孔有序炭 11
2.2.2硬模板法负载金属NI 12
2.2.3软模板法合成中孔有序炭 12
2.3测试方法及条件 13
2.3.1热重分析 13
2.3.2X-射线衍射（XRD）分析 14
2.3.3扫描电镜（SEM）分析 14
2.3.4比表面测试（BET） 14
3结果与讨论 15
3.1SBA-15性能与测定 15
3.1.1小角度XRD分析 15
3.1.2SEM分析 15
3.1.3SBA-15的孔隙结构分析 16
3.2CMK-3性能与测定 18
3.2.1热重分析 18
3.2.2小角度XRD分析 19
3.2.3大角度XRD分析 20
3.3CMK-3负载金属Ni性能及测定 21
3.1.1小角度XRD分析 21
3.1.2大角度XRD分析 22
3.4软模板法合成MP-CS-32性能及测定 23
3.4.1BET分析 23
3.4.2小角度XRD分析 26
3.4.3不同F127、酚醛树脂含量的影响 27
4结论 30
致谢 31
参考文献 32，3545
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