木屑制备高孔隙成型活性炭及Doehlert设计法优化

doi:10.3969/j.issn.1673-5854.2017.06.004

bce ›› 2017, Vol. 51 ›› Issue (6): 19-25.doi: 10.3969/j.issn.1673-5854.2017.06.004

Previous Articles Next Articles

Preparation of High Porosities Active Carbon Monoliths from Sawdust and Doehlert Matrix Method Optimization

YIN Mengmeng¹, TANG Ruiyuan², LÜ Bingyong³, QIAO Yingyun², TIAN Yuanyu^1,2

1. Key Laboratory of Low Carbon Energy and Chemical Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum(EastChina), Qingdao 266580, China;
3. Binnan Oil Production Factory of Shengli Oilfield Management Zone Seven Injection Station, Binzhou 256600, China

Received:2016-11-09 Online:2017-11-30 Published:2017-12-08

Abstract

Abstract: Sawdust was used as precursor to prepare binderless high porosities active carbon monoliths(ACMs) with H₃PO₄ as activator and without binder. The influences of temperature(500-700 ℃) and activation time(1-3 h) on the properties of ACMs were analyzed by N₂ adsorption-desorption, X-ray diffraction(XRD) and compression test. The results showed that the ACMs had high specific surface area, porosity, yield, apparent density, compressive strength and total pore volume and they could reach 1 022.6 m²/g, 32.2 %, 0.62 g/cm³, 5.23 MPa, 0.49 cm³/g and 91.8 % when the activation temperature was 600 ℃ and the activation time was 1 h. The Doehlert matrix method was used to optimize the reaction conditions and the optimal temperature and time were 590 ℃ and 2.1 h. Under these conditions the yield, compressive strength and density of ACMs were 31.8%, 5.54 MPa and 0.87 g/cm³. It was found that the theoretical value was consistent with experimental value and the theoretical model was reliable.

Key words: active carbon monoliths, high porosities, phosphoric acid, Doehlert matrix method, activation time

CLC Number:

TQ35

YIN Mengmeng, TANG Ruiyuan, LÜ Bingyong, QIAO Yingyun, TIAN Yuanyu. Preparation of High Porosities Active Carbon Monoliths from Sawdust and Doehlert Matrix Method Optimization[J]. bce, 2017, 51(6): 19-25.

References

[1] 郑青榕,顾安忠,蔡振雄,等. 成型前后活性炭储氢性能的初步研究[J]. 热能动力工程,2008,23(6):682-684,694.
[2] 孟庆函,刘玲,宋怀河,等. 超级电容器用复合炭极板电极的电化学性能[J]. 电源技术,2004,28(7):405-407.
[3] DE LATHOUDER K M,LOZANO-CASTELLO D,LINARES-SOLANO A,et al. Carbon-ceramic composites for enzyme immobilization[J]. Microporous and Mesoporous Materials,2007,99(1/2):216-223.
[4] 周建斌,高尚愚,胡成文,等. 气相吸附用活性炭成型物的研究[J]. 南京林业大学学报:自然科学版,1999,23(6):43-46.
[5] 宋燕,凌立成,李开喜,等. 成型活性炭对甲烷吸附性能研究[J]. 新型炭材料,2000,15(4):13-16.
[6] QIAO W M,KORAI Y,MOCHIDA I,et al. Preparation of an activated carbon artifact:Oxidative modification of coconut shell-based carbon to improve the strength[J]. Carbon,2002,40(3):351-358.
[7] MCRAE PETER D A,ZHANG T J,WALKER DAVID R B. Method of making shaped activated carbon:US 6696384[P]. 2004-02-24.
[8] BOX G E P,WILSON K B. On the experimental attainment of optimum conditions[J]. Journal of the Royal Statistical Society-B,1951,13(2):1-45.
[9] HAMEED B H,TAN I A W,AHRNAD A L. Preparation of oil palm empty fruit bunch-based activated carbon for removal of 2,4,6-trichlorophenol:Optimization using response surface methodology[J]. Journal of Hazardous Materials,2009,164(2/3):1316-1324.
[10] ZAKY R R,HESSIEN M M,EL-MIDANY A A,et al. Preparation of silica nanoparticles from semi-burned rice straw ash[J]. Powder Technology,2008,185(1):31-35.
[11] NAKAGAWA Y,MOLINA-SABIO M,RODRIGUEZ-REINOSO F. Modification of the porous structure along the preparation of activated carbon monoliths with H₃PO₄ and ZnCl₂[J]. Microporous and Mesoporous Materials,2007,103(1/2/3):29-34.
[12] YU X Q,LIU Y,ZHANG G D. Study on preparation and performance of formed activated carbon with deposited TiO₂ thin films[J]. Journal of Anhui University of Technology,2008,3(3):279-283.
[13] SING K S W. Use of physisorption for the characterization of microporous carbons[J]. Carbon,1989,27(1):5-11.
[14] ROSAS J M,BEDIA J,RODRIGUEZ-MIRASOL J,et al. Preparation of hemp-derived activated carbon monoliths:Adsorption of water vapor[J]. Industrial & Engineering Chemistry Research,2008,47(4):1288-1296.
[15] 王玉新,苏伟,时志强,等. 高比表面积椰壳活性炭的制备及其应用[J]. 天津大学学报:自然科学与工程技术版,2008,41(6):703-708.

Preparation of High Porosities Active Carbon Monoliths from Sawdust and Doehlert Matrix Method Optimization

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 6

Recommended Articles

Metrics

Comments

[1]	Xueqin LI,Zhiwei WANG,Miao YANG,Tingzhou LEI,Haiyan XU,Xiaofeng HE. Optimization of Preparation Technology of Peanut Shell Based Activated Carbon by Response Surface Model [J]. Biomass Chemical Engineering, 2019, 53(2): 54-60.
[2]	YANG Qiao-wen, CHEN Si, LI Peng-fei. Preparation of Activated Carbon from Furfural Residues by Phosphoric Acid Activation [J]. bce, 2015, 49(3): 23-26.
[3]	LIN Guan-feng, WU Kai-jin, CHANG Ying-cui, CHEN Han, YU Jin. Preparation of Unshaped Granular Activated Carbon from Coconut Shell by Phosphoric Acid Activation [J]. bce, 2015, 49(3): 49-51.
[4]	TAN Fei, LIN Yong-mei, WANG Su-mei, ZHENG Zhang-wei, HUANG Biao. Optimization of Lignin Extraction from Black Liquor by Phosphoric Acid Using Response Surface Methodology [J]. bce, 2014, 48(2): 8-12.
[5]	LIN Guan-feng;JIANG Jian-chun;WU Kai-jin. Preparation of Hemi-cellulose-based Granular Activated Carbon by Phosphoric Acid Activation [J]. , 2013, 47(3): 6-10.
[6]	JIANG Ying-ti;CHEN Shun-wei;ZHUANG Xiao-wei;PAN Xin;ZHANG Jiang-li. Preparation of Activated Carbon from Oil Camellila Nutshell by Phosphoric Acid Activation Using Microwave Heating [J]. , 2011, 45(2): 34-36.