低碳烷烃分子在分子筛中扩散的经验规律

CIESC Journal

低碳烷烃分子在分子筛中扩散的经验规律

梁五更,陈诵英,彭少逸

中国科学院山西煤炭化学研究所,中国科学院山西煤炭化学研究所,中国科学院山西煤炭化学研究所太原 ,太原 ,太原

出版日期:1990-10-25 发布日期:1990-10-25

Empirical Rule of Diffusion of Low Carbon n-Alkanes in Molecular Sieves

Liang Wugeng, Chen Songying and Peng Shaoyi Institute of Coal Chemistry, Academia Sinica, Taiyuan

Online:1990-10-25 Published:1990-10-25

摘要/Abstract

摘要： <正>分子筛中的扩散是很重要而又非常复杂的问题.由于扩散机理复杂,影响因素又多,受研究方法所限,人们对分子筛中扩散规律的认识还很不够,因此各种研究分子筛中扩散的某些经验规律的工作是有意义的.

Abstract: Good linear relationships between the logarithm of diffusivities and dav defined as equation (1) are obtained for low carbon n-alkanes in zeolites 4A, 5A, silicalite and NaX. There is also a good linear relationship between the logarithm of diffusivities and the pore diameter of zeolite (dp) for low carbon w-alkanes. So the diffusivity for a diffusate in a zeolite can be described by the equation as follows: a and b are constants. This relation could be used to estimate the pore diameter of new zeolite molecular sieves from the measurements of diffusivities of low carbon n-alkanes in them.

梁五更,陈诵英,彭少逸. 低碳烷烃分子在分子筛中扩散的经验规律 [J]. CIESC Journal.

Liang Wugeng, Chen Songying and Peng Shaoyi Institute of Coal Chemistry, Academia Sinica, Taiyuan. Empirical Rule of Diffusion of Low Carbon n-Alkanes in Molecular Sieves[J]. .