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Isopropylation of naphthalene over various zeolite catalysts
Author(s): 
Pages: 12-14
Year: Issue:  3
Journal: JOURNAL OF NANJING UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)

Keyword:  沸石催化剂烷基化26-二异丙基萘;
Abstract: 考察了USY、Hβ、HMCM-22、HM、HZSM-5等5种沸石分子筛在萘与异丙醇烷基化反应中的催化性能,并用XRD和NH3-TPD等手段对催化剂的物化性质进行了表征:实验结果发现,沸石分子筛的酸性质和孔结构是影响其活性和选择性的主要因素,以弱酸和中强酸为主的酸性中心以及十二元环开放的孔道有利于提高催化剂活性,而与目标产物2,6-二异丙基萘的分子直径接近的一维孔道有利于其选择性的提高.
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