石油化工2011，Vol.40Issue(3)：279-284,6.
黏结剂对5A分子筛吸附正构烷烃行为的影响
Effect of Binder on Adsorption Equilibrium of N-Paraffins on 5A Molecular Sieves
摘要
Abstract
The influence of the binder on adsorption equilibrium of n-paraffins on 5A molecular sieves was investigated by the vacuum gravimetric method.Compared with binderless sample,5A molecular sieves with the binder showed low adsorption capacities, large correlation factors of characteristic curves and low heats of adsorption for n-paraffins.According to the results of the adsorption capacity comparison and SEM analysis, the influence of the binder on the adsorption capacities of n-paraffins on the 5A molecular sieves with the binder could be ascribed to the dilution and blocking of the pores on the molecular sieve crystal.The binder changes the polar interaction between the adsorbate molecules and the adsorption sites, so the adsorption characteristic curves are affected.The decrease of the heat of adsorption is mainly due to the adsorption of some adsorbate molecules on the binder.关键词
正构烷烃/吸附平衡/5A分子筛/黏结剂Key words
n-paraffins/ adsorption equilibrium/ 5A molecular sieve/ binder分类
化学化工引用本文复制引用
孙辉,沈本贤..黏结剂对5A分子筛吸附正构烷烃行为的影响[J].石油化工,2011,40(3):279-284,6.基金项目
国家重点基础研究发展规划项目(2006CB202501) （2006CB202501）
中国石油化工股份有限公司资助项目(105032). （105032）
