乙基纤维素包覆成型活性炭的制备及其性能研究

doi:10.3969/j.issn.0253-2417.2017.02.006

林产化学与工业 ›› 2017, Vol. 37 ›› Issue (2): 49-56.doi: 10.3969/j.issn.0253-2417.2017.02.006

乙基纤维素包覆成型活性炭的制备及其性能研究

许伟¹, 刘军利¹, 缪存标², 孙康¹, 宋曜光¹

1. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042;
2. 福建元力活性炭股份有限公司, 福建南平 353000

收稿日期:2016-08-04 出版日期:2017-04-25 发布日期:2017-05-04
通讯作者: 刘军利(1974-),研究员,硕士生导师,主要从事生物质能源与炭材料的研究工作;E-mail:liujunli1974@126.com。 E-mail:liujunli1974@126.com
作者简介:许伟(1988-),男,山东日照人,研究实习员,硕士,主要从事炭质吸附材料的研究工作;E-mail：xxxuwei2008@163.com
基金资助:
“十二五”国家科技支撑计划资助（2015BAD14B06）

Preparation and Properties of Formed Activated Carbon Coated by Ethyl Cellulose

XU Wei¹, LIU Junli¹, MIAO Cunbiao², SUN Kang¹, SONG Yaoguang¹

1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SAF;Key Lab. of Biomass Energy and Materials, Jiangsu Province, Nanjing 210042, China;
2. Fujian Yuanli Active Carbon Co., Ltd., Nanping 353000, China

Received:2016-08-04 Online:2017-04-25 Published:2017-05-04

摘要/Abstract

摘要： 以乙基纤维素（EC）为包覆材料，无水乙醇为溶剂，在50 ℃溶解制成包膜液。将制备好的包膜液均匀地喷涂在成型活性炭的表面，经热处理后，制备得到包覆EC的活性炭产品。考察了包膜液的质量分数、喷涂体积及热处理温度对包覆活性炭强度和吸附性能的影响。结果发现：膜液质量分数4.23%、30 g活性炭喷涂20 mL膜液、热处理温度140 ℃条件下，制备的包覆活性炭产品强度达93.66%，相比原料活性炭提高7.35个百分点，丁烷工作容量为86.0 g/L，相比原料活性炭下降9.6 g/L，在活性炭表面形成了一层3~4 μm的薄膜。EC包覆没有改变活性炭内部的孔结构特征，但会影响活性炭表面的润湿性，经EC包覆后活性炭水接触角（θ）为89.76°（原料活性炭的θ为15.41°），疏水性能显著提高；包覆后的活性炭产品表面光滑平整，无浮尘，形状保持良好。

关键词: 成型活性炭, 表面包覆, 强度, 水接触角

Abstract: The coated liquid was prepared with ethyl cellulose as coating material and ethanol as the solvent by dissolving at 50 ℃. In order to prepare activated carbon products coated by EC, the coated liquid was uniformly sprayed on the surface of formed activated carbon before heat treatment. The influences of the mass fraction of coated liquid, spray volume and heat treatment temperature on the strength and adsorption properties of coated activated carbon were studied. It was found that under the mass fraction of coated liquid was 4.23%, the weight of activated carbon was 30 g, the spray volume was 20 mL, and the heat treatment temperature was 140 ℃, the strength of the coated activated carbon reached 93.66% and increased 7.35 percentage points compared with that of raw activated carbon and the butane working capacity reached 86.0 g/L and decreased by 9.6 g/L, a thin film with thickness 3-4 μm was formed on the surface of the activated carbon. EC coating did not change the pore structure of activated carbon, but it would affect the wet ability of activated carbon surface, the water contact angle of coated activated carbon was 89.76°, which of the raw activated carbon was 15.41°, and it meant the hydrophobic performance was significantly improved. The surface of the activated carbon products prepared by this method was smooth, no dust, and the shape kept well.

Key words: formed activated carbon, surface coating, strength, water contact angle

中图分类号:

TQ35
TQ424.1

许伟, 刘军利, 缪存标, 孙康, 宋曜光. 乙基纤维素包覆成型活性炭的制备及其性能研究[J]. 林产化学与工业, 2017, 37(2): 49-56.

XU Wei, LIU Junli, MIAO Cunbiao, SUN Kang, SONG Yaoguang. Preparation and Properties of Formed Activated Carbon Coated by Ethyl Cellulose[J]. Chemistry and Industry of Forest Products, 2017, 37(2): 49-56.

参考文献

[1] LIM W C,SRINIVASAKANNAN C,BALASUBRAMANIAN N. Activation of palm shells by phosphoric acid impregnation for high yielding activated carbon[J]. Journal of Analytical and Applied Pyrolysis,2010,88(2):181-186.
[2] NAHIL M A,WILLIAMS P T. Pore characteristics of activated carbons from the phosphoric acid chemical activation of cotton stalks[J]. Biomass and Bioenergy,2012,37(1):142-149.
[3] 林冠烽. 磷酸法自成型木质颗粒活性炭的制备过程与机理研究[D]. 北京:中国林业科学研究院博士学位论文,2013. LIN G F. Preparation of self-form granular activated carbon from lignocellulosic material by phosphoric acid activation and analysis of its self-from mechanism[D]. Beijing:Doctoral Dissertation of Chiese Academy of Forestry,2013.
[4] QIAO W,KORAI Y,MOCHIDA I,et al. Preparation of an activated carbon artifact:Factors influencing strength when using a thermoplastic polymer as binder[J]. Carbon,2001,39(15):2355-2368.
[5] 靳瑛. 压块活性炭生产中压块强度的影响因素分析[J]. 能源与节能,2013(12):139-141. JIN Y. Analysis of factors affecting briquetting intensity in producing briquette activated carbon[J]. Energy and Energy Conservation,2013(12):139-141.
[6] 刘桂香,徐仁贤. 乙基纤维素平板膜用于O₂-N₂气体分离性能和结构研究[J]. 膜科学与技术,1994,14(4):46-52. LIU G X,XU R X. Study on properties and structures of ethyl cellulose flat membrane applied to O₂-N₂ gas separation[J]. Membrane Science and Technology,1994,14(4):46-52.
[7] 黄雁,何希文,揣成智. 乙基纤维素水分散体在缓控释薄膜包衣领域中的应用[J]. 塑料,2007,36(3):37-40. HUANG Y,HE X W,CHUAI C Z. Application of ethylcellulose aqueous dispersion in controlled release coating[J]. Plastics,2007,36(3):37-40.
[8] 黄丽,刘石彩,朱光真,等. 活性炭对挥发性有机化合物的吸附回收研究进展[J]. 生物质化学工程,2016,50(1):50-56. HUANG L,LIU S C,ZHU G Z,et al. Recovery and adsorption of volatile organic compounds by activated carbon[J]. Biomass Chemical Engineering,2016,50(1):50-56.
[9] 王海东. 一种酒精蒸汽回收装置:CN103301647A[P]. 2013-09-18. WANG H D. An alcohol vapor recovery device:CN103301647A[P]. 2013-09-18.
[10] 姚从春. 乙基纤维素气体复合膜的制备与改性研究[D]. 大连:大连理工大学硕士学位论文,2013. YAO C C. Preparation and modification of EC-based gas composite membranes[D]. Dalian:Master Degree Thesis of Dalian University of Technology,2013.
[11] 高华生,王大犟,叶芸春,等. 空气湿度对低浓度有机蒸气在活性炭上吸附平衡的影响[J]. 环境科学学报,2002,22(2):194-198. GAO H S,WANG D J,YE Y C,et al.The influence of atmospheric humidity on the adsorption capacity of activated carbon for low-concentration VOCs[J].Acta Scientiae Circumstantiae,2002,22(2):194-198.
[12] YILDRIM H E. Surface Chemistry of Solid and Liquid Interfaces[M]. Oxford:Blackwell Publishing Ltd.,2006.

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乙基纤维素包覆成型活性炭的制备及其性能研究

Preparation and Properties of Formed Activated Carbon Coated by Ethyl Cellulose

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