甲烷在高比表面积活性炭上吸附行为的初步研究  

Adsorption 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] 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1期6-9,共4页Natural Gas Chemical Industry

基　　金：国家自然科学基金;国家煤转化重点实验室基金

摘　　要：采用以石油焦为原料、ＫＯＨ为活化剂制得的高比表面积活性炭作为吸附剂，研究了甲烷在这种活性炭上的吸附行为，探讨了活性炭的比表面积和孔结构与其甲烷吸附性能的关系以及吸附温度对甲烷吸附行为的影响。结果发现，活性炭的比表面积和孔结构是决定其甲烷吸附性能的主要因素；活性炭对甲烷的吸附量随吸附温度的升高逐渐减少；比表面积为２９５３ｍ２／ｇ的高比表面积活性炭在２６℃、３．５ＭＰａ下对甲烷的质量吸附量为０．２８９ｇ／ｇ，换算为标准状态（ＳＴＰ）下的体积吸附量为１２１Ｖ／Ｖ。The adsorption behavior of methane was studied on activated carbon derived from petroleum coke by chemical activation. The results revealed that both surface area and pore structure of the activated carbon had much influence on its adsorption capacity of methane. The effect of adsorption temperature was also preliminarily discussed. A methane adsorption capacity of 0 289g/g was obtained on an activated carbon with BET surface area of 2953 m 2/g at 26℃ and 3 5 MPa.

关 键 词：甲烷 高比表面积 活性炭 吸附剂 吸附天然气 ANG 

分 类 号：O623.11[理学—有机化学] O647.33[理学—化学]