华中科技大学学报：自然科学版2012，Vol.40Issue(12)：112-116,5.
竹炭对糠醛的吸附特性及动边界模型研究
Characteristics of furfural′s adsorbing bamboo charcoal and its mobile boundary model
摘要
Abstract
Bamboo charcoal from pyrolysis was used as an adsorbent to absorb the furfural in the solution.The effects of contact time,initial concentrations of furfural and temperature on the absorptive characteristics of furfural were evaluated and an integrating equation of moving boundary model was used to describe the kinetics.The general kinetical equation was obtained.The results indicate that the dominant procedure is diffusion through particles.The higher the initial concentration of furfural,the strengthen particle diffusion control is.As the temperature increases,the particle diffusion control mechanism is weakened.The apparent reaction order of adsorption is 0.96 and the apparent activation energy is calculated to be 3.02 kJ·mol-1,which indicate that it belongs to physics adsorption.This study is confirmed that the behavior of adsorption and ion exchange process has a certain similarity and compatibility in the kinetic description.关键词
竹炭/糠醛/吸附/动力学/动边界模型Key words
bamboo charcoal/furfural/adsorption/kinetics/moving boundary model分类
能源科技引用本文复制引用
李允超,王贤华,杨海平,陈汉平..竹炭对糠醛的吸附特性及动边界模型研究[J].华中科技大学学报：自然科学版,2012,40(12):112-116,5.基金项目
国家自然科学基金资助项目 （）
国家高技术研究发展计划资助项目 （）
