期刊论文

Liu, J.

中文

过程工程学报

1009-606X

2015

15

2

341-345

21176086:国家自然科学基金 :湖南省重点学科建设项目(十二五) :湖南省高等学校科技创新团队支持计划

本校为第一且通讯机构

通过湿法造纸技术制备了微纤包覆活性炭复合材料,研究了甲苯和对二甲苯在基于微纤复合材料结构化固定床上的吸附透过行为.结果表明,颗粒活性炭被很好地包覆在烧结锁定的三维网络中,活性炭包覆前后的比表面积分别为976和955 m~2/g,微孔体积分别为0.261和0.247 cm~3/g:甲苯和对二甲苯在单一颗粒碳固定床和结构化固定床上的吸附均展示出竞争吸附特性,在两床层中均是甲苯先透过.在5%透过浓度下,甲苯和对二甲苯在结构化固定床上的透过时间较在颗粒碳固定床上分别延长了20和30 min,甲苯和对二甲苯分离时间增加了10 min.采用Yoon-Nelson模型对透过曲线进行拟合,相关系数R~2>0.98,甲苯和对二甲苯在结构化...

Microfibrous entrapped activated carbon composite was prepared by wet layer paper-making technique. The adsorption breakthrough behaviors of volatile organic compounds (toluene and p-xylene) on microfibrous composites in a structured fixed bed were studied. The results showed that the activated carbon particles were well entrapped into the locked three-dimensional porous networks. The specific surface areas of the activated carbon before and after entrapment were 976 and 955 m2/g, and the mircopore volumes 0.261 and 0.247 cm3/g, respectively. T...