摘要
文章重点研究超高交联树脂NDA-100对苯酚的静态吸附动力学,通过动力学实验探讨了不同温度和初始浓度对吸附苯酚的影响,实验结果表明:苯酚在NDA-100树脂上的静态吸附动力学过程符合准二级动力学方程,其吸附速率受膜扩散和颗粒内扩散共同控制,对于高浓度的苯酚溶液微孔填充占主导作用,而低浓度的苯酚溶液表现为先经过大孔吸附后经由微孔填充两个阶段,低浓度吸附时出现双平台动力学现象。进一步阐述了超高交联树脂对于酚类化合物的吸附机理,为树脂固定床吸附酚类化合物的研究和实际工业应用提供理论基础。
This paper studies the static adsorption kinetics of hyper cross linked resin NDA-100 for phenol.Through kinetics experiments it discusses the effect of different temperatures and initial concentration to phenol adsorption.The results show that the static adsorption kinetics process of phenol in NDA-100 resin corresponds with quasi-second-order kinetics equation and the phenol's adsorption rate is controlled by both membrane diffusion and inner granule diffusion.Micropore filling plays a leading role for phenol with high concentration and phenol with light concentration goes through two phases: macropore adsorption and micropore filling.Dual-platform kinetics phenomenon appears during low concentration adsorption.Then the paper expands the adsorption mechanism of hyper cross linked resin for phenolic compounds which provides theoretical basis for the research and practical industrial application of phenolic compound adsorption by resin fixed bed.
出处
《油气田环境保护》
CAS
2011年第4期24-27,35,共5页
Environmental Protection of Oil & Gas Fields
关键词
树脂
酚类化合物
吸附动力学
resin
phenolic compound
adsorption kinetics
