K2CO3-锯末干混合制备成型活性炭

doi:10.12034/j.issn.1009-606X.217218

过程工程学报 ›› 2018, Vol. 18 ›› Issue (1): 159-164.DOI: 10.12034/j.issn.1009-606X.217218

K2CO3-锯末干混合制备成型活性炭

马培勇^1,2，武晋州¹，张贤文^2,3^*，邢献军^1,2，郭晓薇²

1. 合肥工业大学机械工程学院，安徽合肥 230009；2. 合肥工业大学先进能源技术与装备研究院，安徽合肥 230009； 3. 合肥工业大学汽车与交通工程学院，安徽合肥 230009

收稿日期:2017-04-18 修回日期:2017-06-03 出版日期:2018-02-22 发布日期:2018-01-29
通讯作者: 张贤文 xianwen.zhang@hfut.edu.cn

Preparation of Biomass Granular Activated Carbon with K2CO3 and Sycamore Tree Sawdust via Dry Mix Process

Peiyong MA^1,2, Jinzhou WU¹, Xianwen ZHANG^2,3^*, Xianjun XING^1,2, Xiaowei GUO²

1. School of Mechanical Engineering, Hefei University of Technology, Hefei, Anhui 230009, China; 2. Aadvanced Energy Technology and Equipment Research Institute, Hefei University of Technology, Hefei, Anhui 230009, China; 3. School of Automobile and Transportation Engineering, Hefei University of Technology, Hefei, Anhui 230009, China

Received:2017-04-18 Revised:2017-06-03 Online:2018-02-22 Published:2018-01-29

摘要/Abstract

摘要： 以梧桐锯末为基体、无水K2CO3为活化剂，采用干混合法制备成型活性炭颗粒，通过单因素实验考察盐料质量比、活化温度、活化时间及成型密度对活性炭吸附碘性能的影响，并对其进行了表征. 结果表明，在盐料质量比2.0、活化温度950℃、活化时间80 min、成型密度1.3 g/cm3的条件下，所制成型活性炭对碘的吸附容量达1323.25 mg/g. 成型活性炭具有发达的孔结构，比表面积为1432.59 m2/g，平均孔径为1.70 nm，总孔容为0.772 cm3/g，其中微孔比表面积为1302.75 m2/g，孔容为0.566 cm3/g，微孔率达73.3%.

关键词: 干混合, K2CO3, 生物质, 成型活性炭, 孔隙结构表征

Abstract: The granular activated carbon particles were produced by dry mix method with the sycamore tree sawdust and K2CO3. The influences of salt/sawdust mass ratio, activation temperature, activation time and granular density on the granular activated carbon adsorptive property were investigated. The results indicated that the optimal preparation conditions for making granular activated carbon were mass ratio of salt to sawdust 2.0, activation temperature 950℃, activation time 60 min and granular density 1.3 g/cm3, where the granular activated carbon obtains the best iodine adsorption capacity (1323.25 mg/g). The granular activated carbon has the developed pore structure and large specific surface area (1432.59 m2/g), the total pore volume is 0.772 cm3/g, and the average pore diameter is 1.7 nm. Particularly, the micro-pore specific surface area as well as 1302.75 m2/g and pore volume 0.566 cm3/g respectively, microporous rate reached 73.3%.

Key words: dry mix process, potassium carbonate, biomass, formed activated carbon, pore structure characterization

马培勇武晋州张贤文邢献军郭晓薇. K2CO3-锯末干混合制备成型活性炭[J]. 过程工程学报, 2018, 18(1): 159-164.

Peiyong MA Jinzhou WU Xianwen ZHANG Xianjun XING Xiaowei GUO. Preparation of Biomass Granular Activated Carbon with K2CO3 and Sycamore Tree Sawdust via Dry Mix Process[J]. Chin. J. Process Eng., 2018, 18(1): 159-164.

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K2CO3-锯末干混合制备成型活性炭

Preparation of Biomass Granular Activated Carbon with K2CO3 and Sycamore Tree Sawdust via Dry Mix Process

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