| 助剂对Pt/ZSM-8催化剂的结构和酸性能的影响 |
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| 引用本文： | 陈建,郭强,朱宇君,宋华,王光维.助剂对Pt/ZSM-8催化剂的结构和酸性能的影响[J].黑龙江大学自然科学学报,2005,22(3):359-362. |
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| 作者姓名： | 陈建 郭强 朱宇君 宋华 王光维 |
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| 作者单位： | 大庆石油学院,化学化工学院,黑龙江,大庆,163318;中国石化,大庆炼化公司,黑龙江,大庆,163411;黑龙江大学,化学化工与材料学院,黑龙江,哈尔滨,150080 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目(10551251) |
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| 摘 要： | 将ZSM-8沸石经离子交换、挤条成型、浸渍、焙烧等一系列处理后制成Pt/ZSM-8催化剂,并通过程序升温脱附(TPD)、X射线衍射(XRD)、红外光谱(IR)等表征方法研究了助剂对Pt/ZSM-8催化剂的影响。XRD结果表明,ZSM-8沸石经助剂改性后主体结构没有发生较大的变化,助剂均匀分布在载体上;催化剂的活性与催化剂的酸性中心有很大的关系,NH3-TPD谱表明,催化剂有强、弱两种酸性中心,IR谱上出现了B酸中心(1546cm-1)和L酸中心(1454cm-1)的特征吸收谱峰,说明催化剂上同时存在B酸中心和L酸中心,助剂的加入对于催化剂的酸量、酸强度、酸性等都有较大的影响。
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| 关 键 词： | ZSM-8沸石 助剂 改性 催化剂 |
| 文章编号： | 1001-7011(2005)03-0359-04 |
| 修稿时间： | 2005年1月16日 |
Effects on the structure and acidic property of Pt/HZSM- 8 catalysts with the addition of aids |
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| CHEN Jian,GUO Qiang,ZHU Yu-jun,SONG Hua,WANG Guang-wei.Effects on the structure and acidic property of Pt/HZSM- 8 catalysts with the addition of aids[J].Journal of Natural Science of Heilongjiang University,2005,22(3):359-362. |
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| Authors: | CHEN Jian GUO Qiang ZHU Yu-jun SONG Hua WANG Guang-wei |
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| Institution: | CHEN Jian 1,GUO Qiang 2,ZHU Yu-jun 3,SONG Hua 1,WANG Guang-wei 1 |
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| Abstract: | Effects of the addition of aids to Pt/HZSM-8 catalysts were investigated using temperature-programmed desorption (TPD), X-ray diffraction (XRD) and infrared spectroscopy (IR) techniques. The XRD results show that for the crystal structure of Pt/HZSM-8 catalysts with the addition of aids was not changed much. The TPD shows that there were strong acidity center and the weak acidity center in the Pt/HZSM-8. The IR indicates that 1546cm -1and 1454cm -1 absorptions were B acidic center and L acidic center in the Pt/HZSM-8, respectively. |
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| Keywords: | ZSM-8 zeolite aids modifying catalyst |
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