无胺合成[Fe]ZSM-5分子筛的结构鉴定及其催化性能的研究  

Identification of Structure and Investigation of Catalytic Properties on [Fe]ZSM-5 Zeolite Synthesized Without Amines

作　　者：岳瑛[1] 沈文霞[1] 颜贻春 丁莹如[1] 

机构地区：[1]南京大学化学系,南京210008

出　　处：《高等学校化学学报》1992年第12期1503-1506,共4页Chemical Journal of Chinese Universities

摘　　要：不用有机胺为模板剂,在碱性介质中采用水热合成法成功地合成了[Fe]ZSM-5分子筛.用X射线衍射、透射电镜、红外光谱、顺磁共振谱、X射线光电子能谱和穆斯堡尔谱等对其结构进行了表征,结果表明,Fe原子进入了分子筛骨架,并处于四面体的配位环境.在由甲醇转化为汽油的过程中,以本文合成的[Fe]ZSM-5与用有机胺为模板剂合成的[Fe]ZSM-5分子筛为催化剂相比,其活性和选择性几乎相同,且都比通常的H[Al]ZSM-5好,C_5组分以上的选择性大于80％,且芳烃(包括脂环烃)和异构烃的含量达75％以上.[Fe]ZSM-5 Zeolite was synthesized successfully in a alkaline medium by the hydrothermal crystallization method without amines as the templates.The structure of [Fe]ZSM-5 zeolite was identified by means of XRD,TEM,IR,EPR,XPS and Mossbauer spectroscopies.It was proved that the structure of product is a typical ZSM-5 type and Fe3+ ions were introduced into the ZSM-5 framework and were in the lattice of zeolite with a tetrahedral environment.In the conversion reaction from methanol to gasoline he catalytic activity and selectivity of H[Fe]ZSM-5 zeolite synthesized without amines are the same as those of H[Fe]ZSM-5 zeolite synthesized with amine and are much better than those of H[Al]ZSM-5 zeolite.The selectivity for C5+ products is over 80% and the components of aromatic hydrocarbons and isoalkanes in Ct products are over 75%.

关 键 词：无胺合成 催化性能 分子筛 铁 

分 类 号：TQ028.8[化学工程]