Ti改性活性炭分离CH<sub>4</sub>/N<sub>2</sub>的实验研究

Ti改性活性炭分离CH₄/N₂的实验研究

摘要: 针对甲烷气体(煤矿乏风瓦斯)的富集与分离,研究了活性炭吸附材料(AC)的Ti改性方法,讨论了对CH₄/N₂分离性能的影响.结果表明:Ti改性炭活性在1 100℃、N₂保护焙烧后孔径分布更均一;CH₄的吸附量达到34.4 mL/g,比未改性的活性炭和160℃水热方法 Ti改性的活性炭增加了51.5%;CH₄常压穿透曲线的穿透点比未改性的活性炭和160℃水热方法 Ti改性的活性炭分别滞后了41%和50%.

Abstract: For methane(coal mine ventilation air methane) enrichment and separation,Ti modified method of activated carbon adsorption material(AC) was studied.The effect on separation performance of CH₄/N₂ was discussed.The results show that pore diameter distribution of Ti modified activated carbon after roasting at 1 100 ℃ and N₂ protection is more uniform;CH₄ adsorption quantity reaches 34.4 mL/g and increases 51.5% compared with unmodified activated carbon and Ti modified activated carbon at 160 ℃ hydrothermal method;CH₄ breakthrough point of atmospheric breakthrough curve lags 41% and 50% respectively compared with unmodified activated carbon and Ti modified activated carbon at 160 ℃ hydrothermal method.