天然气化工2012，Vol.37Issue(2)：7-11,5.
钾盐助剂对活性炭甲烷吸附性能及孔结构的影响
Influences of potassium promoters on methane storage performance of activated carbon and its pore structure
摘要
Abstract
The activated carbon was prepared with KOH as activation agent and petroleum coke as feedstock under low mass ratio of KOH to carbon of 2:1, and several promoters, KC1, K2CO3 and CH3COOK, were used to introduce K+, K20, and groups -OK* and -CO2K* into the activated carbon. The influences of the promoters on the methane adsorptive storage performance of the adsorbents and the pore structure were investigated. The mechanism for the adsorption capacity enhancement by using promoter was discussed. The results showed that KC1 could increase pore size and the volume of mesoporous and microporous structures, which improved methane absorption on the activated carbon; addition of K2CO3 wasn't favored to the adsorption of methane due to its obstruction of pore formation; and addition of CH3COOK didn' t show obvious effect on adsorption of methane on activated carbon, but could promote the formation of large quantities of micropore and increase the micropore volume ratio.关键词
甲烷吸附储存/活性炭吸附剂/制备/助剂/孔结构Key words
methane adsorption storage/activated carbon adsorbent/preparation/promoter/pore structure分类
化学引用本文复制引用
刘杰,徐卡秋,罗仕忠,李通..钾盐助剂对活性炭甲烷吸附性能及孔结构的影响[J].天然气化工,2012,37(2):7-11,5.基金项目
国家"八六三"计划重点项目(批准号:2008AA062402-1) （批准号:2008AA062402-1）
