活性碳纤维对SO_2吸附性能的研究  

Studies On Adsorption Characteristics of Activated Carbon Fiber for SO_2

作　　者：罗德明[1] 刘中正[2] 串亚权[3] 尹华强[2] 华坚[4] 

机构地区：[1]成都科技大学分析测试中心 [2]成都科技大学环境工程系 [3]成都科技大学应用化学系 [4]成都科技大学纺织化工系

出　　处：《成都科技大学学报》1993年第4期1-7,共7页

基　　金：国家自然科学基金

摘　　要：本文首次用自制活性碳纤维(ACF)对模拟烟气中 SO_2的吸附行为进行了初步研究。此外,还较系统地研究了 ACF 对 SO_2—N_2混合气体的物理吸附特性及其规律。实验结果表明 ACF 对 SO_2吸附量很大,吸附、解吸速度快,对 SO_2—N_2混合气体的吸附具有较典型的物理吸附持性;扩散在吸附、脱附过程中为控制因素。相同条件下 ACF 对模拟烟气(SO_2—N_2—O_2—H_2O(汽)中 SO_2的平衡吸附量比活性碳大5～6倍,具育物理吸附及化学吸附特征,而氧气及水蒸气的存在有利于 SO_2的吸附。In this paper,the adsorptional and catalytic behavior of newly developed PAN—based acti vated carbon fibers(ACF) towards SO_2—O_2—H_2O—N_2 mixed gas was first inestigated.The ad sorptive properties and rules of ACF for SO_2—N_2 mixed gas were studied systematically.The ex periments revealed that the ACF possesses greate adsorption characteristics towards the SO_2—N_2 mixed gas.In the process of adsorption and desorption,diffusion is the dominant factor.ACF with typical physical and chemical adsorption characteristics,can adsorb much more SO_2 than granular activated carbon by a factor of more than 5～6 from a flowing 0.3% SO_2—6% O_2— H_2O—N_2 mixed gas at 25℃ and 220 ml/min.The preserce of O_2 and H_2O facilitates the adsorp tion of SO_2.

关 键 词：活性碳纤维 吸附 二氧化硫 

分 类 号：X511[环境科学与工程—环境工程]