Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received September 18, 2008
Accepted April 3, 2009
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Hydrogen sorption characteristics of Zonguldak region coal activated by physical and chemical methods
Department of Chemistry, Zonguldak Karaelmas University, 67100 Zonguldak, Turkey
Korean Journal of Chemical Engineering, November 2009, 26(6), 1700-1705(6), 10.1007/s11814-009-0250-3
Download PDF
Abstract
Hydrogen sorption characteristics of activated carbons (ACs) produced by physical and chemical activations from two coal mines (Kilimli and Armutcuk) in the Zonguldak region, Turkey were investigated by a volumetric technique at 77 K. H2 adsorption isotherms were obtained on the samples exposed to pyrolytic thermal treatments in a temperature range of 600-900 ℃ under N2 flow and chemical activation using different chemical agents such as KOH, NH4Cl, ZnCl2 from the two mines. Experimental hydrogen adsorption isotherm data at 77 K were used for the evaluation of the adsorption isotherm constants of the Brunauer-Emmett-Teller (BET) and the Langmuir models, and also the amount of hydrogen adsorbed on the various samples was evaluated by using the adsorption isotherm data. Higher hydrogen adsorption capacity values were obtained for all the heat and the chemically treated activated carbon samples from the Kilimli coal samples than Armutcuk. The amount of H2 adsorbed on the original Kilimli coal samples was 0.020 wt%, and it was increased to 0.89 wt% on the samples pyrolyzed at 800 ℃. The highest value of hydrogen adsorption obtained was 1.2 wt% for the samples treated with KOH+NH4Cl mixture at 750 ℃ followed by oxidation with ZnCl2. It was shown that chemical activations were much more effective than physical activations in increasing the surface area, pore volume and the hydrogen sorption capacities of the samples.
References
Jeong BM, Ahn ES, Yun JH, Lee CH, Choi DK, Sep. Purif. Technol., 55(3), 335 (2007)
Zielinski M, Wojcieszak R, Monteverdi S, Mercy M, Bettahar MM, Int. J. Hydrogen Energy, 32, 1024 (2007)
Jagiello J, Ania CO, Parra JB, Jagiello L, Pis JJ, Carbon, 45, 1066 (2007)
Panella B, Hirscher M, Ludescher B, Microporous and Mesoporous Materials, 103, 230 (2007)
Kopac T, Toprak A, Int. J. Hydrogen Energy, 32, 5005 (2007)
Swesi Y, Kerleau P, Pitault I, Heurtaux F, Ronze D, Sep. Purif. Technol., 56(1), 25 (2007)
Jorda-Beneyto M, Suarez-Garcia F, Lozano-Castello D, Cazorla-Amoros D, Linares-Solano A, Carbon, 45, 293 (2007)
Hwang KS, Gong SY, Lee WK, Korean J. Chem. Eng., 8(3), 148 (1991)
Chambers A, Park C, Baker RTK, Rodriguez NM, J. Phys. Chem. B, 102(22), 4253 (1998)
Chen CH, Huang CC, Int. J. Hydrogen Energy, 32, 237 (2007)
Konstantakou A, Steriotis TA, Papadopoulos GK, Kainourgiakis M, Kikkinides ES, Stubos AK, Appl. Surf. Sci., 253(13), 5715 (2007)
Erdogan FO, Kopac T, Int. J. Hydrogen Energy, 32, 3448 (2007)
Shindo K, Kondo T, Sakurai Y, J. Alloys Comp., 379, 252 (2004)
Hirscher M, Panella B, J. Alloys Comp., 404, 399 (2005)
Kopac T, Karaaslan T, Int. J. Hydrogen Energy, 32, 3990 (2007)
Kocabas S, Kopac T, Dogu G, Dogu T, Int. J. Hydrogen Energy, 33, 1693 (2008)
Benard P, Chahine R, Chandonia PA, Cossement D, Dorval-Douville G, Lafi L, Lachance P, Paggiaro R, Poirier E, J. Alloys Comp., 446, 380 (2007)
Texier-Mandoki N, Dentzer J, Piquero T, Saadallah S, David P, Vix-Guterl C, Carbon, 42, 2735 (2004)
Schobert HH, Song C, Fuel, 81, 15 (2002)
Kang HY, Park SS, Rim YS, Korean J. Chem. Eng., 23(6), 948 (2006)
Lee SH, Lee CD, Korean J. Chem. Eng., 18(1), 26 (2001)
Quantachrome Instruments NOVAWin V.1.12 User Manual (2002)
Zielinski M, Wojcieszak R, Monteverdi S, Mercy M, Bettahar MM, Int. J. Hydrogen Energy, 32, 1024 (2007)
Jagiello J, Ania CO, Parra JB, Jagiello L, Pis JJ, Carbon, 45, 1066 (2007)
Panella B, Hirscher M, Ludescher B, Microporous and Mesoporous Materials, 103, 230 (2007)
Kopac T, Toprak A, Int. J. Hydrogen Energy, 32, 5005 (2007)
Swesi Y, Kerleau P, Pitault I, Heurtaux F, Ronze D, Sep. Purif. Technol., 56(1), 25 (2007)
Jorda-Beneyto M, Suarez-Garcia F, Lozano-Castello D, Cazorla-Amoros D, Linares-Solano A, Carbon, 45, 293 (2007)
Hwang KS, Gong SY, Lee WK, Korean J. Chem. Eng., 8(3), 148 (1991)
Chambers A, Park C, Baker RTK, Rodriguez NM, J. Phys. Chem. B, 102(22), 4253 (1998)
Chen CH, Huang CC, Int. J. Hydrogen Energy, 32, 237 (2007)
Konstantakou A, Steriotis TA, Papadopoulos GK, Kainourgiakis M, Kikkinides ES, Stubos AK, Appl. Surf. Sci., 253(13), 5715 (2007)
Erdogan FO, Kopac T, Int. J. Hydrogen Energy, 32, 3448 (2007)
Shindo K, Kondo T, Sakurai Y, J. Alloys Comp., 379, 252 (2004)
Hirscher M, Panella B, J. Alloys Comp., 404, 399 (2005)
Kopac T, Karaaslan T, Int. J. Hydrogen Energy, 32, 3990 (2007)
Kocabas S, Kopac T, Dogu G, Dogu T, Int. J. Hydrogen Energy, 33, 1693 (2008)
Benard P, Chahine R, Chandonia PA, Cossement D, Dorval-Douville G, Lafi L, Lachance P, Paggiaro R, Poirier E, J. Alloys Comp., 446, 380 (2007)
Texier-Mandoki N, Dentzer J, Piquero T, Saadallah S, David P, Vix-Guterl C, Carbon, 42, 2735 (2004)
Schobert HH, Song C, Fuel, 81, 15 (2002)
Kang HY, Park SS, Rim YS, Korean J. Chem. Eng., 23(6), 948 (2006)
Lee SH, Lee CD, Korean J. Chem. Eng., 18(1), 26 (2001)
Quantachrome Instruments NOVAWin V.1.12 User Manual (2002)
