| 硅烷化改性ZSM-5分子筛用于催化脱蜡催化剂 |
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| 引用本文： | 刘丽芝,郭洪臣. 硅烷化改性ZSM-5分子筛用于催化脱蜡催化剂[J]. 石化技术与应用, 2009, 27(3): 242-245 |
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| 作者姓名： | 刘丽芝 郭洪臣 |
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| 作者单位： | 1. 大连理工大学,化工学院,辽宁,大连,116012;北京三聚环保新材料股份有限公司,北京,100080
2. 大连理工大学,化工学院,辽宁,大连,116012 |
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| 摘 要： | 利用分子模拟技术，筛选分子大小合适的硅烷化合物A对ZSM-5分子筛进行表面修饰，并对改性分子筛性质进行了表征。结果表明，在改性温度50℃，硅烷化合物A质量分数为5％的条件下，可制备选择性良好的改性ZSM-5分子筛。将其用于制备新型催化脱蜡催化剂，在压力为6．5MPa，氢气／原料油（体积比）为500，空速为1．0h^-1的条件下，与未改性者相比，前者柴油收率提高了2．7个百分点，凝点降低了2℃。改性后的分子筛对正己烷的吸附选择性增加，对环己烷的吸附含量减小。
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| 关 键 词： | 催化脱蜡 催化剂 分子模拟软件 分子筛 硅烷化改性 选择性 |
Silanizing-modified zeolite catalyst ZSM-5 for catalytic dewaxing |
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| Liu Lizhi,Guo Hongchen. Silanizing-modified zeolite catalyst ZSM-5 for catalytic dewaxing[J]. Petrochemical Technology & Application, 2009, 27(3): 242-245 |
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| Authors: | Liu Lizhi Guo Hongchen |
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| Affiliation: | 1.College of Chemical Engineering;Dalian University of Science and Technology;Dalian 116012;China;2.Beijing SJ Environmental Protection and New Materials Co Ltd;Beijing 100080;China |
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| Abstract: | ZSM -5 zeolite was modified by the silane compound A using a molecule simulation technique. The property of modified zeolite ZSM -5 was characterized. The results showed that the modified zeolite with better selectivity was prepared at temperature 50 ℃ ,the mass fraction of silane compound A 5%. The modified zeolite has good selectivity. Then the catalyst for catalytic dewaxing was made from the modified zeolite. Under the condition of pressure 6.5 MPa, hydrogen/oil （ volume ratio） 500,space velocity 1.0 h^-1, the yield of low solidification diesel oil increased by 2.7 percentiles compared with the unmodified one, and the solidification point lowed by 2℃. The adsorption selectivity of the modified zeolite increased, while adsorbing ability for cy- clohexane reduced. |
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| Keywords: | catalytic dewaxing catalyst molecule simulation software zeolite silanizing modification selectivity |
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