缺陷型ZSM-5沸石金属改性特征  

Metal Modification Characteristics of Defective ZSM-5 Zeolite

作　　者：王吉垒 孙博[3] 林龙[2] 周琳[2] 李佩儒[2] WANG Jilei;SUN Bo;LIN Long;ZHOU Lin;LI Peiru(Zhanjiang New Zhongmei Chemical Industries Co.,Ltd.,Zhanjiang Guangdong 524000,China;Sinopec Maoming PetrochemicaL Branch Company.,Maoming Guangdong 525000,China;Petrochina Hohhot PetrochemicaL Branch Company.,Hohhot Inner Mongolia 010000,China)

机构地区：[1]湛江新中美化工有限公司,广东湛江524000 [2]中国石油化工股份有限公司茂名分公司,广东茂名525000 [3]中国石油天然气股份有限公司呼和浩特石化分公司,内蒙古呼和浩特010000

出　　处：《当代化工》2024年第9期2017-2020,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金项目(项目编号:22178037)。

摘　　要：MFI沸石中普遍存在骨架缺陷。但由于某些原因,迄今为止人们仅对于S-1沸石的骨架缺陷进行了一些较为系统的研究。实际上,与S-1沸石同样具有MFI拓扑结构的ZSM-5沸石也普遍存在不同程度的骨架缺陷。这些骨架缺陷会使ZSM-5沸石产生不同数量和形式的羟基窝缺陷位。然而,关于羟基窝对缺陷型ZSM-5沸石物化性质的研究却鲜有报道,所以有必要对缺陷型ZSM-5沸石中羟基窝的物化性质进行系统研究。因此,研究了缺陷型ZSM-5沸石的金属离子改性规律,考察羟基窝对金属离子在缺陷型HZSM-5上的改性行为,以便为将来开发利用缺陷型ZSM-5沸石打下基础。It is well known that there are skeleton defects in MFI zeolites.However,for some reason,so far,researchers only carried out some systematic research of skeleton defects on S-1.In fact,ZSM-5 zeolite,which have the same MFI topology as S-1 zeolite,also has some skeleton defects.These skeleton defects will cause ZSM-5 zeolite to produce different amounts and forms of hydroxyl nest defects.However,there are few reports on the physical and chemical properties of the detective ZSM-5 zeolite,so it is necessary to systematically study the physical and chemical properties of the hydroxyl nest in the defects.In this paper,the modification law of metal ions on defective ZSM-5 zeolite was studied,and the modification behavior of metal ions on defective HZSM-5 zeolite by hydroxyl groups was investigated,so as to lay a foundation for the development and utilization of defective ZSM-5 zeolite in the future.

关 键 词：ZSM-5沸石 羟基窝 锌离子 骨架缺陷 金属改性 

分 类 号：TQ424[化学工程] O643.36[理学—物理化学]