反应物的投料浓度对其自身转化率的影响  

Influence of Feed Concentration of a Reactant on Its Conversion Ratio

作　　者：王郁文[1] 王学文[2] 张平民[2] 

机构地区：[1]井冈山师范学院化学系,江西吉安343009 [2]中南大学化学化工学院,湖南长沙410083

出　　处：《稀有金属》2003年第1期128-131,共4页Chinese Journal of Rare Metals

摘　　要：一个化学反应 ,如果有两种或两种以上的反应物在其平衡常数关系中有浓度因子 ,且其中某一反应物的计量系数大于所有生成物的计量系数之和 ,在其它条件不变的情况下 ,该反应物的转化率随其自身投料浓度的变化存在极值。由平衡常数关系式可导出α Pα函数关系式 ,进而由α P(α)函数关系式和平衡常数关系式组合又可求出该反应物的最佳投料浓度和最大转化率。介绍了α P(a)函数关系式的推导过程及最佳投料浓度和最大转化率的确定方法 。For a chemical reaction, if there are two or more reactants which have their concentration factors in the equilibrium constant relation, and one of them has the factor which is bigger than total that of all products, the conversion a of this reactant will have a maximum with the change of its feed concentration P . The functional relation of a-Pa can be deduced from the equilibrium constant relation. Then the optimum feed concentration and the maximum conversion of this reactant can be calculated. The deduction of the functional relation and the determination of the optimum feed concentration and the maximum conversion ratio were presented, and the relation between a and P under different conditions was discussed.

关 键 词：化学平衡 函数 最佳投料浓度 最大转化率 

分 类 号：TF01[冶金工程—冶金物理化学]