CAJ | 학술논문

以杉木屑为原料,在传统磷酸法工艺过程中添加辅助催化剂浓硫酸,制备超高比表面积颗粒活性炭。研究浓硫酸添加量、浸渍时间以及浸渍比对颗粒活性炭比表面积的影响。结果表明,浓硫酸添加量和浸渍时间在磷酸法制备超高比表面积颗粒活性炭中发挥着重要的作用,当浸渍时间为15 h、浓硫酸添加量为6%、浸渍比为2.1：1和浸渍时间为5 h、浓硫酸添加量为3%、浸渍比为2.1：1时,分别制备出比表面积为2825、2811 m2/g 的颗粒活性炭、总孔容分别为1.60、1.59 cm3/g,丁烷工作容量分别为154.8、157.3 g/L。
이삼목설위원료,재전통린산법공예과정중첨가보조최화제농류산,제비초고비표면적과립활성탄。연구농류산첨가량、침지시간이급침지비대과립활성탄비표면적적영향。결과표명,농류산첨가량화침지시간재린산법제비초고비표면적과립활성탄중발휘착중요적작용,당침지시간위15 h、농류산첨가량위6%、침지비위2.1：1화침지시간위5 h、농류산첨가량위3%、침지비위2.1：1시,분별제비출비표면적위2825、2811 m2/g 적과립활성탄、총공용분별위1.60、1.59 cm3/g,정완공작용량분별위154.8、157.3 g/L。
Super-high specific surface area granular activated carbon ( GAC) from China fir sawdust was prepared through adding concentrated sulfuric acid in the traditional technology by phosphoric acid activation method. Influences of different dosage of concentrated sulfuric acid, impregnation time and impregnation ratio on specific surface area was studied. The results showed that both of the dosage of concentrated sulfuric acid and impregnation time had great influence on specific surface area of GAC by phosphoric acid method. The GACs prepared under the conditions of impregnation time 15 h, dosage of concentrated sulfuric acid 6 %, impregnation ratio 2. 1:1 and impregnation time 5h, dosage of concentrated sulfuric acid 3 %, impregnation ratio 2. 1:1 gave the BET surface area of 2 825 and 2 811 m2/g, the total pore volume of 1. 60 and 1. 59 cm3/g, and butane working capacity (BWC) of 154. 8 and 157. 3 g/L, respectively.