萃余煤制备炭膜的炭化研究  

Research on Preparation of Carbon Membrane with Residue by Carbonization

作　　者：李新艳[1] 秦志宏[1] 张丽英[1] 陈冬梅[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《化工技术与开发》2011年第8期1-4,共4页Technology & Development of Chemical Industry

基　　金：国家自然科学基金(50874108);国家自然科学基金委员会创新研究群体科学基金(50921002);江苏省自然科学基金(BK2007038)

摘　　要：通过向萃余煤中添加黏结剂,按正交试验在设定条件下加压成型,炭化制备得到平板状炭膜,初步探讨了七个因素对炭膜孔隙率的影响,根据极差分析结果确定出最佳工艺条件。借助比表面积孔径测定仪对孔结构进行表征,结果表明,成型压力对炭膜的孔隙率影响最大,炭化终温保持时间的影响最小;最高孔隙率为23.29%;以中孔为主,孔径集中分布在20～300觷A。Through adding binder and pressing to molding,the residue was made into plate-shaped carbon mem-brane after carbonization under different conditions via orthogonal experiments.The effect of carbonization con-ditions was studied about seven conditions on porosity.The optimum condition was determined on the basis of the range analysis.The porosity parameters were analyzed using a specific surface area and pore size analyzer.The results showed that the effect of molding pressure on porosity was greatest while the effect of final holding time was minimum;the highest porosity was 23.29 %;most pores of carbon membrane were mesopores,and mainly distributed in the range of 20~300 .

关 键 词：萃余煤 炭膜 正交试验 炭化 

分 类 号：TQ536[化学工程—煤化学工程]