甲烷在高比表面活性炭上脱附行为的研究  

Desorption behavior of methane on activated carbon with high surface area

作　　者：刘海燕[1] 凌立成[1] 刘植昌[1] 乔文明[1] 樊彦贞[1] 刘朗[1] 

机构地区：[1]中国科学院山西煤炭化学研究所

出　　处：《天然气化工—C1化学与化工》1999年第3期12-16,共5页Natural Gas Chemical Industry

基　　金：国家自然科学基金;煤转化国家重点实验室基金

摘　　要：用以石油焦为原料、ＫＯＨ为活化剂制得的高比表面积活性炭作为吸附剂，研究了甲烷在这种吸附剂上的脱附行为，探讨了活性炭的ＢＥＴ比表面积和孔结构与甲烷脱附性能的关系以及脱附温度和脱附时间对甲烷脱附行为的影响。结果发现：在这种高比表面积活性炭上，甲烷存在着明显的不可逆吸附；活性炭的比表面积和孔结构对甲烷的脱附性能有一定影响，并且随着脱附温度的升高和脱附时间的延长。Desorption behavior of methane on activated carbon derived from petroleum coke by chemical activation was studied The results revealed that there existed signficant irreversible adsorption of methane on the activated carbon Both surface area and pore structure had much influence on the methane desorption time on desorption of methane were also discussed The desorption ratio of methane increased with the increasing of surface area of the activated carbon, and remained stable at further increase of surface area more than 2520m2/g Small amount of narrow micropore, high temperature and long holding time are beneficial for the desorption

关 键 词：吸附天然气 吸附剂 ANG 甲烷 高比表面积 活性炭 

分 类 号：O623.11[理学—有机化学] O647.33[理学—化学]