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低碳醇中水在分子筛上的吸附平衡与动力学
STUDY ON ADSORPTION EQUILIBRIUM AND KINETICS OF WATER IN LOWER ALCOHOLS ON MOLECULAR SIEVES
【摘要】 研究了低碳醇中水在3A分子筛上的吸附平衡与动力学曲线。对在35℃下的吸附等温线,用Freundlich方程拟合,得出了满意的结果。在消除外扩散影响的条件下,认为粒内扩散是物质传递的主要阻力,吸附动力学曲线可用单孔扩散模型的Crank方程很好地拟合。
【Abstract】 The adsorption dehydration of lower alcohols on molecular sieves has been studied. The adsorption isotherms of water on 3A molecular sieve at 35 ℃ were measured and correlated in terms of Freundlich equation. On condition that the external film resistance was eliminated, the results showed that intraparticle diffusion offers the main resistance to mass, and the adsorption kinetic curves can be fitted by single pore model.
- 【文献出处】 南京化工大学学报(自然科学版) ,JOURNAL OF NANJING UNIVERSITY OF CHEMICAL TECHNOLOGY , 编辑部邮箱 ,1998年03期
- 【分类号】TQ424.25
- 【被引频次】11
- 【下载频次】227