Adsorption and Separation Research of CO₂/CH₄ on Modified Activated Carbon Fiber

Abstract:

In this paper, activated carbon fibers were modified by different chemical reagents. The modified adsorbents were used to investigate adsorption and separation performance of CO₂/CH₄ gases mixture, and then it could get the best modified adsorbent. The experimental results show that amine can't great grafting on activated carbon fiber. Compared with blank activated carbon fibers, the adsorption property of CO₂ did not have much influence on the activated carbon fiber modified by amine. However, it can increase the nitrogen functional groups and the specific surface area on the surface of activated carbon fiber that were modified with nitric acid and ammonia. The above two points were conductive to the adsorption and separation of CO₂/CH₄ mixture gases.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 13-16
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.13
• Online since: July 2014
• Authors: Qin Yuan, Hong Hong Yi*, Xiao Long Tang, Kai Li, Fen Rong Li, Yun Dong Li
• Keywords: Activated Carbon Fiber, Carbon Dioxide, Methane, Separation

References

[1] X.Z. Kong, Adsorption separation and regeneration of gas, Cryog. Eng, 4 (1999) 328-333.

[2] Y. C. Chang C.C. Lee, H．C.C. Lee，Characterization of microstructure and surface properties of heat-treated PAN-and rayon-based activated carbon fibers, J. Por. Mater., 14 (2007) 227-237.

DOI: 10.1007/s10934-006-9028-8

[3] C．A. Toles，W. E. Marshall, Johns．Surface functional groups on acid-activated nutshell carbons, Carbon, 37 (1999) 1207-1214.

DOI: 10.1016/s0008-6223(98)00315-7

[4] L. Fang, Y.C. Zhang, J.X. Zhou, The study of using activated carbon fiber to removal COS and H2S from carbon dioxide. Guangzhou, Chem, 33 (2008) 25-31.

[5] X. Xu, X. Zhao, L. Sun, Adsorption separation of carbon dioxide，methane and nitrogen on monoethanol amine modified β-zeolite, J. Nat. Gas Chem., 18 (2009) 167-172.

DOI: 10.1016/s1003-9953(08)60098-5

[6] P. D. Jadhav, R. V. Chatti, R. B. Biniwalem, Monoethanol amine modified zeolite 13X for CO2 adsorption at different temperatures, Energy Fuels, 21 (2007) 3555-3559.

DOI: 10.1021/ef070038y

[7] C. L. Mangun, K. R. Benak, Surface chemistry, pore sizes and adsorption properties of activated carbon fibers and precursors treated with ammonia, Carbon, 39 (2001) 1809-1820.

DOI: 10.1016/s0008-6223(00)00319-5

[8] B. Shen, Y. Zhou, Z. Shi, Research activated carbon fiber pretreatment and SCR catalytic activity, J. Fuel Chem. Technol. , 36 (2008) 376-380.

[9] F. S. Su , G. S. Lu, S. C. Kuo, Adsorption of CO2 on Amine Y-Type Zeolites, Energy Fuels, 24 (2010) 1441-1448.

DOI: 10.1021/ef901077k

[10] C.L. Wu, X.W. Liu, W. Su, SBA-15 modified with DIPA used in the study of separation performance of CO2/CH4, Chem. Ind. Nat. Gas, 35 (2010) 42-48.

[11] G. H. Meng, A. M. Li, Q. X. Zhang, Studies on the oxygen-containing functional groups of activated carbon and their effects on the adsorption character, Ion Exch. Adsorpt, 23 (2007) 88-94.

[12] H. K. Song, K. W. Cho, K. H. Lee, Adsorption of carbon dioxide on the chemical modified silica adsorbents, J. Non-Cryst Sol., (1998) 242: 69-80.

DOI: 10.1016/s0022-3093(98)00793-5