化工进展2017，Vol.36Issue(2)：588-594,7.DOI:10.16085/j.issn.1000-6613.2017.02.026
超重力技术制备多级孔ZSM-5分子筛
Synthesis of hierarchical ZSM-5 zeolite by high gravity technology
摘要
Abstract
HierarchicalZSM-5 zeolite was prepared in a novel impinging stream-rotating packed bed reactor(IS-RPB)by a toilless salt-aided seed-induced route. The effects of rotation speed,colloidal silica flow rate,natrium aluminate mixture flow rate and cycle time on the structure of mesopores were investigated. The high gravity technology was compared with traditional hydrothermal synthesis method. The as-prepared hierarchicalZSM-5 zeolite was characterized by XRD,SEM,the laser particle size analyzer and N2 adsorption-desorption techniques. The experimental results indicated that the optimum operating condition was:the rotation speed of 1200r/min,colloidal silica flow rate of 30mL/min and natrium aluminate mixture flow rate of 20L/h. The remarkable micromixing property of the IS-RPB led to the formation of hierarchicalZSM-5 zeolite with narrow particle size distribution and regular morphology with obviously decreased crystallization time. This work provided a new method for the industrial production of hierarchicalZSM-5 zeolite.关键词
超重力/ZSM-5/分子筛/撞击流-旋转填料床Key words
high gravity/Socong Mobil#5/moleclar sieves/impinging stream-rotating packed bed reactor分类
化学化工引用本文复制引用
成尚元,刘有智,祁贵生..超重力技术制备多级孔ZSM-5分子筛[J].化工进展,2017,36(2):588-594,7.基金项目
国家自然科学基金（21376229）及山西省青年基金（2015021033）项目。 （）
