| 新型固体超强酸催化剂的制备与裂解性能研究 |
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| 引用本文： | 赵国良,张武阳,滕加伟,宋庆英,林文勇. 新型固体超强酸催化剂的制备与裂解性能研究[J]. 分子催化, 2002, 16(3): 191-194 |
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| 作者姓名： | 赵国良 张武阳 滕加伟 宋庆英 林文勇 |
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| 作者单位： | 1. 上海石油化工研究院,上海,201208
2. 吉林大学,化学系,吉林长春,130023 |
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| 摘 要： | 采用浸渍法，将活性超强酸SO4^2-/ZrO2引入Si-MCM-41介孔分子筛，得到一种新型的固体超强酸催化剂SO4^2-/ZrO2 /Si-MCM-41，其PKA值可达-12.7，酸度分布曲线表明强酸中心数量远低于弱酸中心，XRD结果显示，Si-MCM-41骨架部分塌陷，但保留了主要骨架结构，采用Py-IP法，测定SO4^2-/ZrO2 /Si-MCM-41上酸类型以L酸为主，在催化1，3，5-三异丙苯裂解反应中该催化剂的性能优于微孔分子筛。
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| 关 键 词： | 固体超强酸催化剂 制备 裂解性能 介孔分子筛 1 3 5－三异丙苯 MCM－41 |
| 文章编号： | 1001-3555(2002)03-0191-04 |
Study on Synthesis of a New Solid Superacid Catalyst and their Cracking Properties |
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| ZHAO Guo-liang+,ZHANG Wu-yang+,TENG Jia-wei+,SONG Qing-ying+,LIN Wen-yong+. Study on Synthesis of a New Solid Superacid Catalyst and their Cracking Properties[J]. Journal of Molecular Catalysis (China), 2002, 16(3): 191-194 |
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| Authors: | ZHAO Guo-liang+ ZHANG Wu-yang+ TENG Jia-wei+ SONG Qing-ying+ LIN Wen-yong+ |
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| Affiliation: | ZHAO Guo-liang+1,ZHANG Wu-yang+2,TENG Jia-wei+1,SONG Qing-ying+1,LIN Wen-yong+2 |
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| Abstract: | The active superacid SO+{2-}-4/ZrO-2 component was successfully supported on the surface of Si-MCM-41 mesoporous sieve to form a new SO+{2-}-4/ZrO-2/Si-MCM-41 superacid catalyst with an acid strength of -12.7. The curve of acid intensity distribution showed that the strong acid sites are less than weak acid sites. XRD pattern showed that the mesoporous structure of Si-MCM-41 collapsed partly but keep the main framework. Py-IR were used for this new catalyst to measure the presence of Brnsted and Lewis acid sites, which showed that Lewis acid sites of SO-4+{2-}/ZrO-2/Si-MCM-41 were much stronger than that of Brnsted acid. The results of cracking of 1,3,5-triisopropylbenene elucidated the unique advantages that microporous sieve couldn't possess. |
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| Keywords: | Solid Superacid MCM-41 Synthesis Cracking |
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