两种杂原子复配对Y型分子筛结晶性能的影响  

Effect of two hetero-atom collaboration on crystallinity of zeolite Y

作　　者：陈然[1] 沈志虹[1] 李聃[1] 齐欣[1] 

机构地区：[1]中国石油大学(北京)中国石油天然气集团公司催化重点实验室,北京102249

出　　处：《燃料化学学报》2008年第1期118-121,共4页Journal of Fuel Chemistry and Technology

基　　金：国家重点基础研究计划(973计划;2004CB217806)

摘　　要：Zeolites Y of FAU type containing different transition metal hetero-atoms(MY or M1M2Y,where M = Ti,Co,Ni,Mo,Zr,etc) in the framework were synthesized.The effect of different hetero-atoms on the crystallinity of zeolite Y was characterized by XRD and SEM.The zeolites MY or M1M2Y exhibit the same phase profiles as zeolite Y by XRD.SEM results showed that MY zeolite is provided with well-defined crystal and larger crystal size.Zeolite Y containing single transition metal hetero-atom(MY) exhibits lower crystallinity than zeolite Y.However,the zeolite Y containing two suitable hetero-atoms(M1M2Y) has a much higher crystallinity than MY due to the collaboration of M1 and M2;there is an optimum composition for two hetero-atoms to get a high crystallinity.Zeolites Y of FAU type containing different transition metal hetero-atoms （MY or M1M2Y, where M = Ti, Co, Ni, Mo, Zr, etc） in the framework were synthesized. The effect of different hetero-atoms on the crystallinity of zeolite Y was characterized by XRD and SEM. The zeolites MY or M1M2Y exhibit the same phase profiles as zeolite Y by XRD. SEM results showed that MY zeolite is provided with well-defined crystal and larger crystal size. Zeolite Y containing single transition metal hetero-atom （MY） exhibits lower crystallinity than zeolite Y. However, the zeolite Y containing two suitable hetero-atoms （M1M2Y） has a much higher crystallinity than MY due to the collaboration of M1 and M2 ; there is an optimum composition for two heteroatoms to get a high crystallinity.

关 键 词：双杂原子 Y分子筛 结晶度 

分 类 号：TQ424.25[化学工程]