石油化工2016，Vol.45Issue(8)：976-981,6.DOI:10.3969/j.issn.1000-8144.2016.08.015
NaA分子筛膜的合成及条件优化
Synthesis of NaA zeolite membranes
张青鹏 1周志辉 1郭大鹏 1尧鹏魁 1李向波 1徐嘉晨1
作者信息
- 1. 武汉科技大学 冶金矿产资源高效利用与造块湖北省重点实验室，湖北 武汉 430081
- 折叠
摘要
Abstract
Based on the secondary growth method,continuous and compact NaA zeolite membranes were synthesized onα-Al2O3 support through hot dip-coating. They were characterized by means of XRD and SEM,and applied in the dehydration of ethanol. Through changing the synthesis conditions,namely aluminum source,stirring speed,crystallization time,crystallization temperature and crystallization times,the synthesis process of the NaA zeolite membranes was optimized. It was shown that the synthesized NaA zeolite membranes had high crystallinity. The synthesized NaA zeolite membranes exhibited high performances in the pervaporization with the flux of 1.36 kg/(m2·h) and the separation factor of 12 730 under the synthesis conditions of NaAlO2(Na2O content 38%(w),Al2O3 content 50%(w),water content 11%(w) as the aluminum source in the synthesizing solution,stirring speed 90 r/min,crystallization temperature 97℃,crystallization twice and each crystallization time 3.6 h.关键词
NaA分子筛膜/乙醇脱水反应/渗透汽化Key words
NaA zeolite membrane/ethanol dehydration/pervaporization分类
化学化工引用本文复制引用
张青鹏,周志辉,郭大鹏,尧鹏魁,李向波,徐嘉晨..NaA分子筛膜的合成及条件优化[J].石油化工,2016,45(8):976-981,6.
