丁烷吸附用颗粒活性炭的制备研究  

STUDY ON PREPARATION OF GRANULAR ACTIVATED CARBON FOR n-BUTANE ADSORPTION

作　　者：蒋剑春[1] 王志高[1] 邓先伦[1] 常侠[1] 张燕萍[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042

出　　处：《林产化学与工业》2005年第3期5-8,共4页Chemistry and Industry of Forest Products

摘　　要：以木屑为原料,采用磷酸活化法制备了丁烷吸附用颗粒活性炭,其性能优于进口丁烷颗粒炭,丁烷工作容量达到了12.0 g/100 mL,强度达到96.95 %.就制备过程中的磷酸浓度、磷木比、干燥硬化工艺等因素对丁烷颗粒炭的性能和强度的影响进行了考察,并通过增加成型时和成型后的特殊处理工艺,使得丁烷颗粒炭的性能得到了大大的提高.最后,探讨了丁烷吸附的机理和丁烷颗粒炭必须具备的条件,孔径在1.8～5 nm之间高孔容积的活性炭,其丁烷工作容量高.Granular activated carbon for n-butane adsorption was prepared from sawdust by activation with phosphoric acid. The results showed that this prepared activated carbon had better properties than the imported one：n-butane working capacity （BWC）12.0 g/100 mL, abrasion resistance 96.95 %. Effects of certain factors in preparing process, such as phosphoric acid concentration, mass ratio of phosphoric acid to sawdust, and drying technology on the properties were investigated, Through special treatment technologies during shaping and thereafter, all properties of granular activated carbon for n-butane adsorption were improved greatly. Besides, mechanism of the n-butane adsorp- tion was also discussed to show that activated carbon with high percentage of pore volume within the range of 1.8 - 5 nm possesses high n-butane adsorbability,

关 键 词：颗粒活性炭 丁烷吸附 磷酸活化 木屑 

分 类 号：TQ424[化学工程]