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Optimization of Activated Carbon Preparation from Desilicon Rice Huskvia Compound Agents by Response Surface Methodology
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[1]CHEN Jun-ying,FENG Xiang-ying,SHI Zhao-xia,et al.Optimization of Activated Carbon Preparation from Desilicon Rice Huskvia Compound Agents by Response Surface Methodology[J].Journal of Zhengzhou University (Engineering Science),2015,36(02):120-124.[doi:10.3969/ j.issn.1671 -6833.2015.02.026]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 36卷 Number of periods: 2015 02 Page number: 120-124 Column: Public date: 2015-04-30
Title:
Optimization of Activated Carbon Preparation from Desilicon Rice Huskvia Compound Agents by Response Surface Methodology
Author(s):
CHEN Jun-ying1; FENG Xiang-ying1; 2; SHI Zhao-xia’1; 3; FANG Shu-qi1; HAN Xiu-li1;  WANG Duo1
1.School Of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 ,China; 2. Shandong Xinhua Phar-maceutical Chemical Engineering Design Co. Ld., Zibo 255086 , Chinma; 3. Shandong Jiejing Group Co.L.d.，Rizhao 276826,China;4.State Key Laboratory of Motor Vehicle Biofuel Technology，Nanyang 473000,China
Keywords:
response surface method;  compound activating agent;  desilicon rice husk; activatedcarbon ;  characterization
CLC:
TQ424
DOI:
10.3969/ j.issn.1671 -6833.2015.02.026
Abstract:
The activated carbon was prepared from desilicon rice husk by compound activating agents ( NaOHand Na,CO,). The influence of four factors ( activation temperature,activation time,mixed ratio,mass con-centration of the impregnating solution) and three levels w investigated. The process was optimized by re-sponse surface methodology. The results showed that activation temperature and concentration of the impregna-ting solution were important factors on iodine adsorption value of activated carbon. The best conditions of pre-paring activated carbon the activation temperature of 635℃,activation time of 35 min,the mixing ratio of 4 :l,mass concentration of the impregnating solution of 40%.The iodine adsorption value was 1383.5 mg/g,which was consistent with the predicted values. The structure and morphology of samples characterized bySEM. The specific surface area and pore-size distribution calculated by the methods of BET and BJH, respec-tively. The activated rice husk carbon exhibit a high specific surface area of 1566.1m /g,average pore diam-eter of 2. 05 nm ,total pore volume of 0.80 cm’/ g.
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