天然气化工（C1化学与化工）2016，Vol.41Issue(3)：37-42,6.
碱改性活性炭富集低浓度含氧煤层气甲烷的研究
Methane enrichment from low concentration of coal mine methane by alkali-modified activated carbons
摘要
Abstract
Alkali modified activated carbons were prepared by treating the activated carbons (AC) with NH 3 and KOH solution, respectively, and characterized by N2 adsorption, acid-base titration and FTIR, and the adsorption breakthrough curves of CH4in low concentration of coal mine methane (CMM) over the modified activated carbons were measured. Results show that with the increase of ammonia or KOH concentration, the micropore volume of the modified activated carbons first increased and then decreased and the total basic radical amounts on the surfaces of activated carbons increased gradually. The activated carbon K-2/AC modified by KOH solution of 2% by mass had the largest micropore volume (0.64mL/g) and more basic radical (1.51mmol/g), which exhibited the largest CH4 adsorption capacity of 7.16mL/g, increasing by 31.4%compared to the AC.关键词
煤层气/活性炭/碱改性/甲烷/富集Key words
coal mine methane/activated carbon/alkali treatment/methane/enriching分类
化学化工引用本文复制引用
赵敏,潘红艳,郑蓓蕾,万俊桃,林倩..碱改性活性炭富集低浓度含氧煤层气甲烷的研究[J].天然气化工（C1化学与化工）,2016,41(3):37-42,6.基金项目
国家自然科学基金(21366008)，贵州省基金黔科合 JZ 字[2014]2008号，贵州省基金黔教合KY 字[2014]267号。贵州大学研究生创新基金（研理工2015034）。 （21366008）
