定态法、数值积分应用于H_2和Br_2间反应机理中的问题  

The Problems on Application of Steady-state Approach and Digital Integral to the Reaction between H_2 and Br_2

作　　者：李汝雄[1] 

机构地区：[1]北京石油化工学院化工系

出　　处：《北京石油化工学院学报》1993年第2期30-35,共6页Journal of Beijing Institute of Petrochemical Technology

摘　　要：将定态近似法在603K、1003K、1403K不同程度地用于H_2+Br_2→2HBr反应,计算出c—t数据。在603K左右对[H]、[Br]均可用定态法处理,在1003K左右只能对[H]用定态法处理,在1403K左右只有在较高转化率下才能对[H]用定态法处理。当可以使用定态法时,必须使用有关近似公式,才可顺利进行数值积分,否则因步长不能放大,难以实现。The steady-state approach is used for the analysis of the reaction H2+Br2→ 2HBr to calculate the data of concentration vs time at three temperature 603K,1003K, 1403K, respectively. It is found that this approach is applicable for both [H]and [Br] at temperature round 603K,only for [H]at about 1003K, and for [H]only at higher conversion at about 1403K. when the steady-state approach can be used to some degrees, the approximate equations related must be applied to digital integral. If not, because integral lenghth cann't enlarge, digital integral hardly achieve

关 键 词：溴化氢 反应机理 定态法 近似求积 

分 类 号：TE-55[石油与天然气工程]