Influence of High Gravity on Desorption of Phenol from Activated Carbon
WU Xiao-na 1,LIU You-zhi 2,JIAO Wei-zhou 1
1. Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology, North University of China, Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering
2. Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology, North University of China, Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, Taiyuan
Abstract：We investigated the desorption of phenol from activated carbon with high gravity technology and the desorption kinetics, compared the results with that of the traditional desorption method. Under the optimal conditions, high gravity factor of 55.14, flow rate of 40 L/h, concentration of NaOH of 0.5 mol/L, the desorption time of 90 min, the phenol desorption efficiency was reached up to 93.01%, 3.88 times higher than that of the traditional desorption method under the same conditions. The pseudo-second-order model was used to study the desorption kinetics. The desorption rate constant improved from 13.66?10?4 to 29.59?10?4 compared with the traditional desorption method. The results showed that the mass transfer between liquid and solid was intensified by high gravity technology, which do favor to desorption process. Moreover, the desorption efficiency by NaOH solution was higher than that of deionized water under two methods.
武晓娜 刘有智 焦纬洲. 超重力对活性炭上苯酚脱附性能的影响[J]. 过程工程学报, 2016, 16(5): 744-750.
WU Xiao-na LIU You-zhi JIAO Wei-zhou. Influence of High Gravity on Desorption of Phenol from Activated Carbon. Chin. J. Process Eng., 2016, 16(5): 744-750.
2016, Vol. 16 
