摘要
高硅ZSM-48沸石分子筛在合成气转化催化剂中具有较好的催化性能,其特殊的中孔结构适宜于低碳碳氢化合物的生成。沸石的硅铝比,晶体形貌以及表面性质等不同程度地影响催化剂的性能。同时。
The synthesis of high-silica(K,Na)-ZSM-48 zeolites in a nonaqueous system in the presence of Na^+ or K^+ or both and two organoamines,has been systematically studied.The characteristics of(K,Na)-ZSM-48 were studied by X-ray diffraetion analysis,SEM,infrared spectroscopy,DTA and TG.The lattice parameters of K/Na-,K-,and Na-ZSM-48 were determined.The catalytic properties of ZSM-48 zeolites were investigated.These results show that ZSM-48 containing both K^+ and Na^+ has special physicochemical properties and fairly high activity and selectivity for the direct synthesis of light olefins from syngas.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1991年第3期272-276,共5页
Journal of Fuel Chemistry and Technology
关键词
沸石
合成
分子筛
吸附剂
nonaqueous system
ZSM-48 synthesis
CO+H_2
