摘要
多元物系传质过程与二元物系传质过程有着本质的区别,由于组分间的交互作用,多元物系传质各组分传质效率不相等,其分布范围可在-∞至-∞之间,某些组分可能产生逆向传质、渗透传质、传质障碍等传质奇异现象,这些现象用传统的二元物系传质规律如Fick定律等无法做出解释,必须用Maxwell-Stefan方程进行描述,先概述了Maxwell-Stefan方程的由来、求解方法,然后具体介绍在多元相间传质中的应用。
There exists substantial difference between multicomponent mass transfer process and dicompo-nent mass transfer process. Because of the interactions among the components, the transfer rates of various components do not equal which are in the range from - ∞ to + ∞ , while some components may have strange mass transfer phenomena such as converse mass transfer, pervasion mass transfer, mass transfer clog etc. All these phenomena should be described by Maxwell-Stefan Equation rather than by Pick Law which has been traditionally used in the dicomponent systems. The origin and computational methods of Maxwell-Stefan Equation are summarized firstly, and then the applications in the multicomponent mass transfer are introduced in detail.
出处
《山东理工大学学报（自然科学版）》
CAS
2003年第4期80-83,共4页
Journal of Shandong University of Technology:Natural Science Edition
