摘要
采用分形维理论对经典的非催化气固相反应的缩核模型进行分形分析，提出非催化气固相反应的分维缩核模型。讨论了固体颗粒表面不规则性对气固相非催化反应的影响。通过积炭失活催化裂化催化剂的烧炭再生反应，对分维缩核模型进行了验证。结果表明，分维缩核模型的计算值比经典的二维缩核模型的计算值更接近实验值，平均相对偏差为２．５８％。
he concept of fractal was applied to analyzing the classical shrinkingcore model in two dimensions of reactions of solid particles with gasesA modified fractal shrinkingcore model was presented and was used to analyze the effect of the surface irregularity of the solid particles on the reactionThe fractal model was verified with the regenerative reaction of a deactivated cracking catalyst deposited with carbonIt is found the predicted results obtained with the fractal model were in better agreement with experimental values than those with the classical model;the average relative deviation was 258% with maximum of 548%
出处
《石油化工》
CAS
CSCD
北大核心
1998年第7期497-502,共6页
Petrochemical Technology
基金
中国石化总公司
留学回国服务中心资助项目
关键词
燃烧过程
分维缩核模型
气固相
非催化反应
fractal,fractal dimension,shrinkingcore model,fractal shrinkingcore model,regeneration
