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

doi:10.3969/j.issn.0438-1157.2012.10.002

CIESC Journal ›› 2012, Vol. 63 ›› Issue (10): 3017-3026.DOI: 10.3969/j.issn.0438-1157.2012.10.002

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

CHEN Jianyu, LIU Ziwen, LI Ping, YU Jianguo

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2012-02-24 Revised:2012-07-20 Online:2012-10-05 Published:2012-10-05
Supported by:
supported by the High-tech Research and Development Program of China(2008AA062302),Shanghai Pujiang Talent Program(08PJ14034)and Shanghai International Cooperation Project(08160704000).

改性蜂窝状活性炭吸附二氧化碳和氮气的热力学

陈建宇, 刘资文, 李平, 于建国

华东理工大学化学工程联合国家重点实验室, 上海 200237

通讯作者: 李平
作者简介:李平,陈建宇(1986- ),男,硕士研究生。
基金资助:
国家高技术研究发展计划项目(2008AA062302);上海市浦江人才项目(08PJ14034);上海市国际合作项目(08160704000)。

Abstract

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.

Key words: activated carbon monolith, carbon dioxide adsorption, surface modification, adsorption isotherms, carbon dioxide capture

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。

关键词: 蜂窝状活性炭, CO₂吸附, 表面改性, 吸附等温线, CO₂捕集

CLC Number:

TQ021

CHEN Jianyu, LIU Ziwen, LI Ping, YU Jianguo. Thermodynamic study of CO₂ and N₂ adsorption on modified activated carbon monolith[J]. CIESC Journal, 2012, 63(10): 3017-3026.

陈建宇, 刘资文, 李平, 于建国. 改性蜂窝状活性炭吸附二氧化碳和氮气的热力学[J]. 化工学报, 2012, 63(10): 3017-3026.

References 23

[1]	Core Writing Team P R K,Reisinger A.IPCC Fourth Assessment Report:Climate Change 2007.Geneva,Switzerland,2007:2-23
[2]	Cavenati S,Grande C A,Rodrigues A E.Adsorption equilibrium of methane,carbon dioxide,and nitrogen on zeolite 13X at high pressures[J].Journal of Chemical&Engineering Data,2004,49(4):1095-1101
[3]	Zhao Huiling(赵会玲),Hu Jun(胡军),Wang Jianjun(汪建军),Zhou Lihui(周丽绘),Liu Honglai(刘洪来).CO2 capture by the amine-modified mesoporous materials[J].Acta Physico-Chimica Sinica(物理化学学报),2007,23(6):801-806
[4]	Millward A R,Yaghi O M.Metal-organic frameworks with exceptionally high capacity for storage of carbon dioxide at room temperature[J].Journal of the American Chemical Society,2005,127(51):17998-17999
[5]	Yin C Y,Aroua M K,Daud W M A W.Review of modifications of activated carbon for enhancing contaminant uptakes from aqueous solutions[J].Separation and Purification Technology,2007,52(3):403-415
[6]	Drage T C,Arenillas A,Smith K M,et al.Preparation of carbon dioxide adsorbents from the chemical activation of urea-formaldehyde and melamine-formaldehyde resins[J].Fuel,2007,86(1/2):22-31
[7]	Thote J A,Iyer K S,Chatti R,et al.In situ nitrogen enriched carbon for carbon dioxide capture[J].Carbon,2010,48(2):396-402
[8]	Yuwen Z,Yuyuan W,Jianying G,et al.The experimental study on the performance of a small-scale oxygen concentration by PSA[J].Separation and Purification Technology,2005,42(2):123-127
[9]	Nitta T S T,Kurooka M,Katayama T.An adsorption isotherm of multi-site occupancy model for homogeneous surface[J].Journal of Chemical Engineering of Japan,1984,17(1):39-45
[10]	Barrer R M.Sorption in porous crystals-equilibria and their interpretation[J].Journal of Chemical Technology and Biotechnology,1981,31(2):71-85
[11]	Kiselev A V.Vapor adsorption on zeolites considered as crystalline specific adsorbents[J].Advances in Chemistry Series,1971(102):37-39
[12]	Grande C A,Lopes F V S,Ribeiro A M,et al.Adsorption of off-gases from steam methane reforming(H2,CO2,CH4,CO and N2)on activated carbon[J].Separation Science and Technology,2008,43(6):1338-1364
[13]	Shen C Z,Grande C A,Li P,et al.Adsorption equilibria and kinetics of CO2 and N2 on activated carbon beads[J].Chemical Engineering Journal,2010,160(2):398-407
[14]	Wang Yinjie(王银杰),Qi Lu(其鲁),Wang Weijun(汪卫军).Effect of doping K element on properties of lithium silicate as CO2 absorbent[J].Transactions of Beijing Institute of Technology(北京理工大学学报),2006,26(5):458-460
[15]	Groen J C,Peffer L A A,Pérez-Ramírez J.Pore size determination in modified micro-and mesoporous materials.Pitfalls and limitations in gas adsorption data analysis[J].Microporous and Mesoporous Materials,2003,60(1/2/3):1-17
[16]	Pan Hongyan(潘红艳),Li Zhong(李忠),Xia Qibin(夏启斌),Xi Hongxia(奚红霞),Li Jing(李晶).Adsorption of styrene on ammonia-treated activated carbon fibers[J].Journal of Functional Materials(功能材料),2008,39(2):324-327
[17]	Zhang Z,Xu M,Wang H,et al.Enhancement of CO2 adsorption on high surface area activated carbon modified by N2,H2 and ammonia[J].Chemical Engineering Journal,2010,160(2):571-577
[18]	Przepiorski J,Skrodzewicz M,Morawski A W.High temperature ammonia treatment of activated carbon for enhancement of CO2 adsorption[J].Applied Surface Science,2004,225(1/2/3/4):235-242
[19]	Zhang Lidan(张丽丹),Wang Xiaoning(王晓宁),Han Chunying(韩春英),Guo Kunmin(郭坤敏).Properties of activated carbon for carbon dioxide adsorption[J].Journal of Beijing University of Chemical Technology(北京化工大学学报),2007,34(1):76-80
[20]	Plaza M G,Pevida C,Arenillas A,et al.CO2 capture by adsorption with nitrogen enriched carbons[J].Fuel,2007,86(14):2204-2212
[21]	Walton K S,Abney M B,LeVan M D.CO2 adsorption in Y and X zeolites modified by alkali metal cation exchange[J].Microporous and Mesoporous Materials,2006,91(1/2/3):78-84
[22]	Diana Paola Vargas,Liliana Giraldo.CO2 adsorption on binderless activated carbon monoliths[J].Adsorption,2011,17:497-504
[23]	Liu Z,Grande C A,Li P,et al.Adsorption and desorption of carbon dioxide and nitrogen on zeolite 5A[J].Separation Science and Technology,2011,46(3):434-451

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

改性蜂窝状活性炭吸附二氧化碳和氮气的热力学

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