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间接模板剂法合成介孔SAPO-11 分子筛及其加氢异构化性能
作者:吴海琳1  娜1 2 王海彦1 2 吴晓娜1 王钰佳1 杨占旭1 
单位:1. 辽宁石油化工大学化学化工与环境学部 辽宁 抚顺 113001  2. 中国石油大学(华东)化学工程学院 山东 青岛 266580 
关键词:SBA-15 分子筛 介孔 SAPO-11 分子筛 加氢异构化 
分类号:O643.36
出版年,卷(期):页码:2018,46(10):0-0
DOI:10.14062/j.issn.0454-5648.2018.10.15
摘要:

 :采用水热合成法,将未焙烧的介孔材料SBA-15 作为硅源合成介孔SAPO-11 分子筛。利用X 射线衍射、N2 吸附-脱

附等温曲线,BET 物理吸附,NH3-TPD 以及扫描电子显微镜等对分子筛的形貌和孔结构性质进行表征。将正十二烷作为原
料,考察负载量为0.5%的Pt/SAPO-11 分子筛催化剂的加氢异构化反应催化性能。结果表明:以未焙烧的SBA-15 作为硅源
制备介孔SAPO-11 分子筛,介孔比表面积为77.2 m2/g 以及介孔孔容为0.261 m3/g,有效降低孔道传质阻力,酸量显著增加,
活性位增多,使长链烷烃加氢异构化的选择性达到65.21%。

 The hierarchical SAPO-11 molecular sieves were synthesized by a hydrothermal method with mesoporous material

SBA-15 as a silica source. The morphology and the pore structure of zeolites were characterized by X-ray diffraction and N2
adsorption-desorption isothermal analysis, specific surface area measurement, NH3-TPD and scanning electron microscopy
respectively. The catalyst loading of hydroisomerization catalytic performance of Pt/SAPO-11 molecular sieve prepared with
dodecane is 0.5%. The result shows that the uncalcined SBA-15 can be used as a silica source for the synthesis of mesoporous
SAPO-11 molecular sieve with the mesoporous specific surface area of 77.2 m2/g and the mesoporous volume of 0.261 m3/g. This
sieve can effectively reduce the pore mass transfer resistance, and increase the number of active sites, and the selectivity of long chain
alkanes hydroisomerization reaches 65.21%.
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作者简介:
参考文献:

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