摘要
根据大庆常压渣油催化裂解实验和C4、丙烯的二次反应结果,确定了重油催化裂解九集总反应网络。通过合理假设,推导了集总反应的数学模型和催化剂失活函数,采用子模型分步法求取了模型中的反应速率常数,并对模型进行了检验和统计分析。模型验证的结果表明,柴油、汽油、丙烯、乙烯等催化裂解主要产品的预测值与实验值吻合良好,说明求取的速率常数可靠、采用子模型分步法进行集总动力学模型参数估计的方法可行。
Based on the product distribution of catalytic pyrolysis of Daqing atmospheric residue and secondary reaction resuits of C4 and propylene, a nine-lump reaction network was developed. Mathematical model and catalyst deactivation expression were developed based on some reasonable assumptions. The reaction rate constants of catalyst deactivation were estimated by sub-models method. Relative error and statistical analysis were used to test the model. The predicted values of diesel, gasoline, propylene and ethylene agree well with the experimental values. The results show that the rate constants estimated by sub-models method are reliable, and the sub-models method can be used to estimate the rate constants of more lumps kinetic models.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第5期137-141,共5页
Journal of China University of Petroleum(Edition of Natural Science)
基金
中国石油天然气股份有限公司科学研究与技术开发项目(W07-06-05-01)
关键词
催化裂解
动力学模型
集总
子模型
参数估计
catalytic pyrolysis
kinetic model
lump
sub-models
parameter estimation
