| 制备条件对Co-Mo/TiO_2-Al_2O_3汽油HDS催化剂性能的影响 |
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| 引用本文： | 张舜光,段艳,侯凯湖.制备条件对Co-Mo/TiO_2-Al_2O_3汽油HDS催化剂性能的影响[J].化工学报,2011,62(10). |
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| 作者姓名： | 张舜光 段艳 侯凯湖 |
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| 作者单位： | 河北工业大学化工学院,天津,300130 |
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| 基金项目： | 中国石油天然气股份有限公司科学研究与技术开发项目(06-03A-01-01-03); 河北省自然科学基金项目(B2010000036)~~ |
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| 摘 要： | 以蔗糖为辅助剂,采用溶胶-凝胶法制备了介孔氧化铝及相应的Co-Mo/TiO2-Al2O3汽油脱硫催化剂,并对其进行了TEM、XRD和N2吸附表征。以FCC汽油重馏分为原料,重点考察了不同条件下制得的Al2O3对催化剂选择性加氢脱硫性能的影响。结果表明,蔗糖(sucrose)添加量和pH值对Al2O3织构产生影响,进而影响到对应催化剂的加氢脱硫性能;在Al/sucrose摩尔比1∶1、pH值5.4时Al2O3的比表面积最大、孔径分布最窄,对应催化剂的选择性加氢脱硫活性最好;Al2O3的最可几孔径随pH值的增加而增大;溶胶老化温度对Al2O3的比表面积和孔容影响较大,但对最可几孔径和孔径分布影响较小。与Co-Mo/TiO2-sAl2O3(以sAl2O3表示市售Al2O3)催化剂相比,Co-Mo/TiO2-Al2O3催化剂具有较好的选择性加氢脱硫活性,在考察的条件范围内,脱硫率相同时其对应的烯烃饱和度低5%～15%左右。
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| 关 键 词： | 介孔氧化铝 蔗糖 加氢脱硫 催化剂 |
Effect of preparation conditions on performance of Co-Mo/TiO_2-Al_2O_3 catalysts for FCC gasoline hydrodesulfurization |
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| ZHANG Shunguang,DUAN Yan,HOU Kaihu.Effect of preparation conditions on performance of Co-Mo/TiO_2-Al_2O_3 catalysts for FCC gasoline hydrodesulfurization[J].Journal of Chemical Industry and Engineering(China),2011,62(10). |
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| Authors: | ZHANG Shunguang DUAN Yan HOU Kaihu |
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| Affiliation: | ZHANG Shunguang,DUAN Yan,HOU Kaihu(School of Chemical Engineering and Technology,Hebei University of Technology,Tianjin 300130,China) |
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| Abstract: | Mesoporous alumina was prepared by the sol-gel method using sucrose as assistant agent and the corresponding Co-Mo/TiO2-Al2O3 catalysts were obtained.The samples were characterized by TEM,XRD and N2 adsorption.The effects of Al2O3 prepared under different conditions on the selective HDS performance of the catalysts for FCC gasoline heavy fraction hydrodesulfurization were investigated.The results showed that sucrose and pH affected Al2O3 structure,which in turn affected the HDS performance of the correspond... |
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| Keywords: | mesoporous alumina sucrose hydrodesulfurization catalyst |
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