大庆油页岩及其半焦孔结构研究  

Study on the specific area and porous structure Of Daqing oil shale and semi-coke

作　　者：赵娜[1] 吴国光[1] 王盘成[1] 苗真勇[1] 李萍[1] 王志华[1] 

机构地区：[1]中国矿业大学化工学院

出　　处：《洁净煤技术》2009年第4期76-78,共3页Clean Coal Technology

摘　　要：采用比表面积吸附仪测定大庆油页岩及其半焦的低温氮吸附等温线，结果表明油页岩及不同干馏终温下的半焦均属于II型吸附等温线，说明其具有较连续的完整的孔系统，孔径范围小至分子级孔，大至无上限孔（相对而言）。各干馏终温半焦的比表面积及孔径分布具有相似的特点，分布曲线起始部分有较大程度的上翘，在孔直径40～50h内出现一个小的峰值。试验条件下，随着干馏终温的增加，试样的比表面积和孔容积均有增大趋势。N2 adsorption isotherms at the low temperature were obtained by auto-adsorption analyzer. The absorption isotherms of Daqing oil shale and semi-coke samples are all type II isotherms, which indicates that those samples consist of continuous and complete system of pores. The diameter of pores ranges from molecular scale to upper limit scale （ contrast to normal one）. There are similar in the specific surface area and the pore size distribution of different samples that is the profiles turn up at the initial part and small peaks of curves show up in the range of diameters between 40A and 50A. Under the experimental condition, the specific area and volume of pores are all increased as the final temperature of dry distillation increasing.

关 键 词：油页岩 半焦 氮吸附 孔结构 

分 类 号：TE13[石油与天然气工程—油气勘探]