石油化工2017，Vol.46Issue(3)：327-333,7.DOI:10.3969/j.issn.1000-8144.2017.03.011
La/活性炭吸附脱硫动力学模型的研究
Study on kinetic models of adsorption desulfurization on La/activated carbon
摘要
Abstract
The adsorption desulfurization process of simulated oils(n-octane containing dibenzothiophene) on La/AC was simulated by means of two kinetic models,namely the pseudo-second-order(PSO) model and the modified pseudo-n-order(MPnO).The coefficients of determination(R2),root-mean-square errors(RMSE) and Akaike information criterion(AICc) were applied to evaluate the simulation.It was showed that,the MPnO model was superior to the PSO model,the parameters of the PSO model could exactly be obtained but the parameters(namely reaction order,rate constant and equilibrium adsorption sulfer capacity) of the MPnO model were uncertain;and there was over-parameterization of the MPnO model due to the linear relationship between the rate constant and the equilibrium adsorption sulfer capacity.To obtain the significant parameter estimation,the adjustable parameters in the MPnO model was reduced to 2.The results demonstrated that the MPnO model with three adjustable parameters was superior to the MPnO model with two adjustable parameters,but kinetics data could exactly estimate the parameters of the MPnO model with two parameters(reaction order and rate constant).关键词
吸附动力学/拟合度指标/吸附脱硫/二苯并噻吩Key words
adsorption kinetics/indicators of fitting/adsorption desulfurization/dibenzothiophene分类
化学化工引用本文复制引用
刘会鹏,王建红,许梦宇,杨浩,乔聪震..La/活性炭吸附脱硫动力学模型的研究[J].石油化工,2017,46(3):327-333,7.基金项目
河南大学大学生创新项目(15NB008). （15NB008）
