一种新型活性半焦吸附剂的制备及其表面特征分析

李鸿伟; 李彦旭; 杜青平; 卢姿; 易长思

环境工程学报

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李鸿伟, 李彦旭, 杜青平, 卢姿, 易长思. 一种新型活性半焦吸附剂的制备及其表面特征分析[J]. 环境工程学报, 2013, 7(5): 1767-1772.

引用本文:

李鸿伟, 李彦旭, 杜青平, 卢姿, 易长思. 一种新型活性半焦吸附剂的制备及其表面特征分析[J]. 环境工程学报, 2013, 7(5): 1767-1772.

Li Hongwei, Li Yanxu, Du Qingping, Lu Zi, Yi Changsi. Preparation and surface characteristics analysis of a new activated semi-coke adsorbent[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1767-1772.

Citation:

Li Hongwei, Li Yanxu, Du Qingping, Lu Zi, Yi Changsi. Preparation and surface characteristics analysis of a new activated semi-coke adsorbent[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1767-1772.

一种新型活性半焦吸附剂的制备及其表面特征分析

1.
广东工业大学环境科学与工程学院,广州 510006
基金项目:
广东省科技计划项目(2008B030302045)
中图分类号: TQ174

Preparation and surface characteristics analysis of a new activated semi-coke adsorbent

1.
School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
Fund Project:

摘要: 对一种原料半焦进行粉碎、筛分,取其中10～20目的颗粒;用去离子水冲洗后高温下烘干至恒重;依次进行HNO3活化、KOH活化和加压水热化学活化,制备出活性半焦吸附剂。经实验证明,该活性半焦吸附剂对甲苯的吸附等温线符合Langmuir模型,其甲苯吸附容量可达207 mg/g,穿透时间由80 min延长至235 min。该活性半焦吸附剂的比表面积为555.56 m2/g,碘值为811.38 mg/g,表面酸碱总量为0.8649 mmol/g,并通过SEM扫描进行了表面微观形态分析。数据表明,经改性后制备出的新型活性半焦对甲苯的去除率明显增加,其表面物化性质也有明显改变,是一种优良的有机废气吸附剂。
- 半焦 /
- 活化 /
- 甲苯 /
- 表面分析
Abstract: We investigated preparation process, application, and surface characterization properties of activated semi-coke. Raw material was raw semi-coke, the preparation processes included crushing, screening, choosing, and activating. 10～20 mesh particles were chosen to be dried to constant weight after flushed several times with deionized water, and this semi-cokes were modified by HNO3, KOH and high pressure reactor successively. Results show that the adsorption isotherms of toluene on the different activated semi-coke samples were well fitted by the Langmuir equation. The adsorption capacity was 207 mg/g, the penetration time was extended from 80 min to 235 min. The specific surface area of activated semi-coke was 555.56 m2/g, the iodine value was 811.38 mg/g, the surface acid and alkali amount was 0.8649 mmol/g. Surface microstructure was scanned by scanning electron microscope (SEM).These results demonstrate that the toluene removal rate of the new activated semi-coke increased obviously. The physical and chemical properties of activated semi-coke surface greatly changed. It makes the activated semi-coke to an efficient adsorbent for organic waste gas.
- semi-coke /
- activation /
- toluene /
- surface analysis

[1]	上官炬,李转丽,杨直,等.高温热处理对活性半焦烟气脱硫的影响.太原理工大学学报,2005,36(2):134-136 Shang Guanju, Li Zhuanli, Yang Zhi, et al. The effect of heating semi-coke at high temperature on its SO₂ removal capacity.Journal of Taiyuan University of Technology,2005,36(2):134-136(in Chinese)
[2]	上官炬,杨直,苗茂谦.硝酸改性褐煤半焦制备烟气脱硫剂.太原理工大学学报,2007,38(3):229-232 Shang Guanju, Yang Zhi, Miao Maoqian. The SO₂ adsorbent prepared by the oxidation with HNO₃ from lignite semi-coke. Journal of Taiyuan University of Technology,2007,38(3):229-232(in Chinese)
[3]	冯治宇.活性焦制备与应用技术.大连:大连理工大学出版社,2007.68-90
[4]	上官炬.改性半焦烟气脱硫剂的物理结构和表面化学特性变化机理.太原:太原理工大学博士学位论文,2006.197-198 Shang Guanju. Change mechanism of physical structure and surface functional groups of activated semi-cokes used in SO₂ removal from flue gas. Taiyuan: Doctor Dissertation of Taiyuan University of Technology,2006,197-198(in Chinese)
[5]	张丽,李春虎,侯影飞,等.活性半焦吸附剂吸附脱除FCC汽油中硫的研究.环境化学,2008,27(3):301-304 Zhang Li, Li Chunhu, Hou Yingfei, et al. Study on absorptive removal of sulfur from FCC gasoline over activated semi-cokes adsorbent. Environmental Chemistry,2008,27(3):301-304(in Chinese)
[6]	Beatriz Cardoso, Ana S. Mestre, Ana P. Carvalho, et al. Activated carbon derived from cork powder waste by KOH activation: Preparation, characterization, and VOCs adsorption. Industrial and Engineering Chemistry Research, 2008, 47(16): 5841-5846
[7]	Jin Jin,Shunsuke Tanaka, Yasuyuki Egashira, et al.KOH activation of ordered mesoporous carbons prepared by a soft-templating method and their enhanced electrochemical properties.Carbon,2010,48(7):1985-1989
[8]	Rahimeh Naviri Fallah, Saeid Azizian. Removal of thiophenic compounds from liquid fuel by different modified activated carbon cloths.Fuel Processing Technology,2012,93(1):45-52
[9]	张丽丹,赵晓鹏,马群,等. 改性活性炭对苯废气吸附性能的研究.新型炭材料,2002,16(2):41-44 Zhang Lidan, Zhao Xiaopeng, Ma Qun, et al. Study of the adsorption of benzene-containing off-gases on a modified active carbon.New Carbon Materials, 2002, 16(2): 41-44(in Chinese)
[10]	李彦旭.活性半焦吸附剂及制备方法.中国专利:CN 201110036170.1,2011-02-11 Li Yanxu. Active carbocoal adsorbent and Its method of preparation.Chinese Patent: CN 201110036170.1, 2011-02-11(in Chinese)
[11]	Li Yanxu,Chen Jiangyao,Sun Yinghuang. Adsorption of multi-component volatile organic compounds on semi-coke.Carbon,2008,46(6):858-863
[12]	Zhang Peikun, Wang Li. Extended Langmuir equation for correlating multilayer adsorption equilibrium data. Separation and Purification Technology, 2010, 70(3): 367-371
[13]	Amphol Aworn, Paitip Thiravetyan,Woranan Nakbanpote. Preparation of CO₂ activated carbon from corncob for monoethylene glycol adsorption.Colloids and Surfaces A: Physicochemical and Engineering Aspects,2009,333(1-3): 19-25
[14]	Gul-e-Rana Jaffri, Zhang Jiyu.Catalytic gasification characteristics of mixed black liquor and calcium catalyst in mixing (air/steam) atmosphere. J. Fuel. Chem. Technol., 2008, 36(4): 406-414
[15]	Liu Shuqin, Wang Yuanyuan, Zhao Ke, et al. Enhanced-hydrogen gas production through underground gasification of lignite. Mining Science and Technology, 2009, 19 (3):0389-0394
[16]	RuLing Tseng, SzuKung Tseng, FengChin Wu,et al.Effects of micropore development on the physicochemical properties of KOH-activated carbons.Journal of the Chinese Institute of Chemical Engineers,2008,39(1):37-47
[17]	周金梅,李海燕,林国栋,等.多壁碳纳米管的纯化及其表面含氧基团的表征.物理化学学报, 2010,26(11):3080-3086 Zhou Jinmei, Li Haiyan, Lin Guodong, et al. Purification of multiwalled carbon nanotubes and characterization of their oxygen containing surface groups.Acta Physico Chimica Sinica,2010,26(11): 3080-3086(in Chinese)
[18]	Baba Jibril,Omar Houache,Rashid Al-Maamari,et al.Effects of H₃PO₄ and KOH in carbonization of lignocellulosic material. Journal of Analytical and Applied Pyrolysis,2008, 83(2):151-156
[19]	He Chaoxiong, Song Shuqin, Liu Jinchao, et al. KOH-activated multi-walled carbon nanotubes as platinum supports for oxygen reduction reaction. International Journal of Hydrogen Energy, 2010, 195(21): 7409-7414
[20]	Dabwan Ahmed H. A., Imai Daizo, Kaneco Satoshi. Water purification with sintered porous materials fab-ricated at 400℃ from sea bottom sediments.Journal of Environmental Sciences, 2008, 20(2):172-176
[21]	Jianbo Zhang, Lijun Jin, Xinfu He, et al. Catalytic methane decomposition over activated carbons prepared from direct coal liquefaction residue by KOH activation with addition of SiO₂ or SBA-15.International Journal of Hydrogen Energy,2011,36(15):8978-8984

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李鸿伟, 李彦旭, 杜青平, 卢姿, 易长思. 一种新型活性半焦吸附剂的制备及其表面特征分析[J]. 环境工程学报, 2013, 7(5): 1767-1772.

引用本文:

李鸿伟, 李彦旭, 杜青平, 卢姿, 易长思. 一种新型活性半焦吸附剂的制备及其表面特征分析[J]. 环境工程学报, 2013, 7(5): 1767-1772.

Citation:

一种新型活性半焦吸附剂的制备及其表面特征分析

1. 广东工业大学环境科学与工程学院,广州 510006

收稿日期: 2012-05-09

基金项目:

广东省科技计划项目(2008B030302045)

关键词:

半焦 /
活化 /
甲苯 /
表面分析

摘要: 对一种原料半焦进行粉碎、筛分,取其中10～20目的颗粒;用去离子水冲洗后高温下烘干至恒重;依次进行HNO3活化、KOH活化和加压水热化学活化,制备出活性半焦吸附剂。经实验证明,该活性半焦吸附剂对甲苯的吸附等温线符合Langmuir模型,其甲苯吸附容量可达207 mg/g,穿透时间由80 min延长至235 min。该活性半焦吸附剂的比表面积为555.56 m2/g,碘值为811.38 mg/g,表面酸碱总量为0.8649 mmol/g,并通过SEM扫描进行了表面微观形态分析。数据表明,经改性后制备出的新型活性半焦对甲苯的去除率明显增加,其表面物化性质也有明显改变,是一种优良的有机废气吸附剂。

English Abstract

Preparation and surface characteristics analysis of a new activated semi-coke adsorbent

1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China

Received Date: 2012-05-09

Fund Project:

Keywords:

Abstract: We investigated preparation process, application, and surface characterization properties of activated semi-coke. Raw material was raw semi-coke, the preparation processes included crushing, screening, choosing, and activating. 10～20 mesh particles were chosen to be dried to constant weight after flushed several times with deionized water, and this semi-cokes were modified by HNO3, KOH and high pressure reactor successively. Results show that the adsorption isotherms of toluene on the different activated semi-coke samples were well fitted by the Langmuir equation. The adsorption capacity was 207 mg/g, the penetration time was extended from 80 min to 235 min. The specific surface area of activated semi-coke was 555.56 m2/g, the iodine value was 811.38 mg/g, the surface acid and alkali amount was 0.8649 mmol/g. Surface microstructure was scanned by scanning electron microscope (SEM).These results demonstrate that the toluene removal rate of the new activated semi-coke increased obviously. The physical and chemical properties of activated semi-coke surface greatly changed. It makes the activated semi-coke to an efficient adsorbent for organic waste gas.

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一种新型活性半焦吸附剂的制备及其表面特征分析

Preparation and surface characteristics analysis of a new activated semi-coke adsorbent

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一种新型活性半焦吸附剂的制备及其表面特征分析

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Preparation and surface characteristics analysis of a new activated semi-coke adsorbent

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