Thermodynamic study of CO<sub>2</sub> and N<sub>2</sub> adsorption on modified activated carbon monolith

CHEN Jianyu; LIU Ziwen; LI Ping; YU Jianguo

doi:10.3969/j.issn.0438-1157.2012.10.002

您当前的位置：

首页 >

文章列表页 >

Thermodynamic study of CO₂ and N₂ adsorption on modified activated carbon monolith

更新时间：2025-12-10

- Thermodynamic study of CO₂ and N₂ adsorption on modified activated carbon monolith
- CIESC Journal Issue 10, Pages: 3017-3026(2012)
- 作者机构：
  
  华东理工大学化学工程联合国家重点实验室,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.10.002
  CLC： Q021
- Online First：05 October 2012，
  
  Published：05 October 2012
- 稿件说明：
移动端阅览
CHEN Jianyu, LIU Ziwen, LI Ping, et al. Thermodynamic study of CO₂ and N₂ adsorption on modified activated carbon monolith[J]. CIESC Journal, 2012, (10): 3017-3026. DOI: 10.3969/j.issn.0438-1157.2012.10.002.
DOI：

CHEN Jianyu, LIU Ziwen, LI Ping, et al. Thermodynamic study of CO₂ and N₂ adsorption on modified activated carbon monolith[J]. CIESC Journal, 2012, (10): 3017-3026. DOI: 10.3969/j.issn.0438-1157.2012.10.002. DOI：

摘要

蜂窝状活性炭具有较高的比表面积、多孔道、压降低、吸脱附速率快、不易堵塞等优点

因此被认为是捕集烟道气中CO2重要吸附材料。选用蜂窝状煤基和椰壳两种活性炭吸附剂

采用磁悬浮热天平分别测定了CO2和N2的吸附等温线。采用1 mol·L-1 K2CO3对蜂窝状活性炭材料进行浸渍改性

提高在低二氧化碳分压下的CO2吸附性能。采用Langmuir、multi-site Langmuir和Virial 3种模型对吸附平衡数据进行拟合

得出热力学参数

为后续吸附工艺优化设计提供基础数据。结果表明在实验范围内3种模型均能对实验测量的等温线进行较好的拟合

Langmuir模型总体拟合效果最好。

Abstract

Activated carbon(AC)monolith has the advantages of higher specific surface area

multi channels of pores

higher adsorption and desorption rates and lower pressure drop.So it is generally considered as a promising adsorbent material to capture CO2.In this paper

two commercial coal/coconut AC monoliths were used as adsorbents to capture CO2 from flue gas.These adsorbent materials were soaked in K2CO3 solution to improve CO2 adsorption capacity and selectivity of CO2/N2.Adsorption equilibrium isotherms of CO2 and N2 on coal/coconut AC monoliths(before/after soaking in K2CO3 solution)were measured by using magnetic suspension balance.The experimental data were fitted with Langmuir

multi-site Langmuir and Virial models

respectively.Three models fitted well with the measured isotherms in the whole experimental range

and Langmuir model was the best one.

关键词

Keywords

references

Views

280

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Flow boiling pressure drop characteristics of CO2 in horizontal micro tube

Influence mechanism of H2S on reactivity of NiFe2O4 oxygen carriers for chemical looping combustion

Synthesis of mesoporous Cr(OH)3 and its adsorption of vanadium(Ⅴ) ion from V containing solution

Effect of sulfolane on CO2 absorption and desorption by monoethanolamine aqueous solution

Preparation and performance of Pr3+: Y2SiO5/TiO2 composites deposited on activated carbon fiber

Related Author

JIANG Linlin

LIU Jianhua

ZHANG Liang

ZHAO Yue

DAI Jinxin

LIU Jing

LIU Feng

LI Hualin

Related Institution

Institute of Refrigeration Technology, University of Shanghai for Science and Technology

Shanghai Institute of Metrology and Measurement Technology

State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology

School of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences

⁰

Thermodynamic study of CO2 and N2 adsorption on modified activated carbon monolith

DOI：10.3969/j.issn.0438-1157.2012.10.002

摘要

Abstract

关键词

Keywords

references

Thermodynamic study of CO₂ and N₂ adsorption on modified activated carbon monolith