摘要
采用直接法即通过求解常微分方程边值问题形式的催化剂粒内反应扩散模型 ,得到粒内浓度分布 ,进而由定义式经积分求得复杂动力学模型的催化剂内扩散有效因子。微分方程的求解采用打靶法和正交配置法等数值解法 ,内扩散有效因子的计算通过Gauss Legendre数值积分求得。
The internal reaction\|diffusion equation that is a differential equation boundary\|value problem was solved by using the orthogonal collocation method and the shooting method. Thus the profile of the conversion of component A , x A in the catalyst particle can be obtained. Moreover the effectiveness factor can be derived by numerical integration method.
出处
《计算机与应用化学》
CAS
CSCD
2000年第3期243-246,共4页
Computers and Applied Chemistry
关键词
内扩散有效因子
催化剂
化工计算
数值法
internal diffusion, effectiveness factor, numerical analysis
