Al／P—SBA-15介孔分子筛催化剂合成及其对萘与异丙醇的烷基化反应的催化性能  

SYNTHESIS OF MESOPOROUS AI/P-SBA-15 CATALYSTS AND RELATED CATALYTIC PERFORMANCE FOR ALKYLATION OF NAPHTHALENE WITH ISOPROPANOL

作　　者：任传利[1] 仇深杰[1] 付文文[1] 刘宗昉[1] 孙继红[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124

出　　处：《石油学报（石油加工）》2008年第B10期333-337,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金重大研究计划项目（20590367）资助

摘　　要：在磷酸体系中合成了SBA-15介孔分子筛，采用嫁接法进-步合成了Al／P—SBA-15介孔分子筛催化剂，并通过XRD和TEM分析手段对其结构进行了表征，初步考察了催化剂用量、催化剂粒度和反应物进料速率对该催化剂催化萘与异丙醇反应性能的影响。结果表明，所合成的Al／P—SBA-15介孔分子筛催化剂具有高度有序结构，但反应后催化剂的结构有序度下降；同时找出了消除内外扩散对萘烷基化反应影响的最佳条件：催化剂用量为0．5g，催化剂粒度40～80目，反应物进料速率0．05ml／min。Mesoporous SBA-15 molecular sieves were synthesized in phosphoric acidmedia and then the mesoporous Al/P-SBA-15 catalysts were prepared via grafted method. The structure and morphology of SBA-15 and Al/P-SBA-15 were characterized by means of XRD and TEM analysis, meanwhile, the effects of catalyst amount, catalyst mush and reactant liquid speed on the catalytic performances of Al/P-SBA-15 in naphthalene alkylation with isopropanol were discussed. The results indicated that the Al/P-SBA-15 was of highly ordered structure, and its ordered degree was decreased after catalytic reaction. The optimum reaction conditions of eliminating external and internal diffusion in naphthaleue alkylation were obtained as follows： the catalyst amount of around 0. 5 g, the catalyst particle size between 40--80 mush and reactant feeding speed of 0.05ml/min, respectively.

关 键 词：Al/PSBA-15 萘 烷基化 

分 类 号：O643[理学—物理化学]