全浓度二组分体系液—固吸附计量置换模型的研究——Ⅰ.理论模型  

Study on Stoichiometric Displacement Model of Adsorption from Binary Component Mixtures in Liquid—Solid System Ⅰ. Theoretical Model

作　　者：耿信鹏[1] 

机构地区：[1]西北纺织工学院,西安710048

出　　处：《纺织基础科学学报》1992年第4期301-307,共7页

摘　　要：在全浓度二组分液一固吸附体系中,按组分Ⅰ、组分Ⅱ和吸附剂间相互作用的热力学平衡推导出一个计量置换吸附模型(SDM—A),并从理论上研究了该模型的两种表达式的特征以及与Freundlich经验式的联系与区别。依据两个表达式线性作图得到的两个斜率的相对值,提出了理想吸附体系与非理想吸附体系的观点。A theoretical model, Stoichiometric Displacement Model of Adsorption (SDM-A) from binary liquid mixture with complete range of concentration in liquid-solid system, is proposed according to the thermodynamic equilibria among the components Ⅰ and Ⅱ as well as adsorbent. The characteristics of the two expressions of the SDM-A and the connection and difference between the SDM-A and Freundlich Empirical Equation are studied theoretically. Based on the relative values of the two slopes for the plots by the two expressions, respectively, a new definition about distinguishing an adsorption system being ideal or non-ideal is presented.

关 键 词：吸附 模型 二组分 液-固体系 计量置换模型 

分 类 号：O647.31[理学—物理化学]