基于链流体状态方程的高压流体混合物的粘度模型  

A Viscosity Model of Liquid Mixtures under High Pressure Based on an Equation of State

作　　者：周永祥[1] 彭昌军[1] 裘德林[1] 黑恩成[1] 刘洪来[1] 

机构地区：[1]华东理工大学化学系,上海200237

出　　处：《华东理工大学学报（自然科学版）》2006年第8期953-957,共5页Journal of East China University of Science and Technology

基　　金：国家自然科学基金项目(20490200);上海市科委重大基础研究项目(05DJ14002);上海市教委资助项目

摘　　要：在压力型Eyring理论的基础上，结合链流体状态方程建立了一个高压流体混合物的粘度模型。对20个不同的二元体系和1个三元体系，温度在273～373K，压力在0．1～73MPa下，共3075个数据点的计算表明：用一个与温度无关的可调参数，本模型能相当满意地关联高压混合物的粘度，预测结果与文献数据相当吻合，总的平均误差为1．47％，预测平均误差为2．62％。对于烃类混合物，本模型明显优于f-SRK和f-PRSV模型。Combined with the state equation of chain-like fluids, a model for correlating and predicting viscosities of liquid mixtures under high pressures was established based on Eyring＇s absolute rate theory. Present model can be used to correlate satisfactorily the viscosity of liquid mixtures with only one adjustable and temperature independent parameter, and good agreements between the predicted values and experimental data for the selected systems are attained. For the 20 binary systems and one ternary system, 3 075 data points from 0. 1 MPa to 73 MPa, and from 273 K to 373 K, the overall average absolute correlated and predicted deviation is 1.47% and 2.62% respectively. Results calculated by this model are accurate than by the friction theory （f-theory） for hydrocarbon mixtures.

关 键 词：粘度 流体混合物 高压 状态方程 

分 类 号：O645.16[理学—物理化学]