Paper Title:
Development of Monolithic Materials with and without a Binder with Carbon Molecular Sieving Properties
  Abstract

In this work we studied the production of activated carbon fibres in monolith shape from a commercial textile acrylic fibre. The monoliths were produced with and without a binder. The binders tested were phenolic resin, polystyrene, polymethylmethacrylate and clay. We also tested the influence of using a solvent. The SEM analysis indicates that the monoliths are made of filaments that can be considered activated carbon fibres. The type of binder influences the fibre orientation, degradation and materials shrinkage, the worst results being obtained from the use of polymethylmethacrylate and polystyrene in toluene. The best results are obtained when the monoliths were produced only with acrylic fibre and with phenolic resin as binder. The use of solvents has opposite effects for the carbonised and activated samples. In the former case it seems that the water can be fibre protective but during activation the presence of water leads to an increase in the monolith’s burn-off. The methodology used leads to the formation of excellent samples for performing the gas separations O2/N2 and CO2/CH4. Some samples show maximum selectivity for the referred separations because N2 and CH4 are almost totally excluded from the porous structure which indicates a good potential to be utilised in PSA systems or for natural gas purification. The adsorption capacity is very dependent on the conditions used. Nevertheless, the best sample has a considerably high adsorption capacity (32cm3g-1 for CO2 and 4cm3g-1 for O2, after 200s contact time).

  Info
Periodical
Materials Science Forum (Volumes 587-588)
Edited by
António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira
Pages
805-809
DOI
10.4028/www.scientific.net/MSF.587-588.805
Citation
J.M. Valente Nabais, A. Padre-Eterno, P. J.M. Carrott, M. M.L. Ribeiro Carrott, C. Galacho, "Development of Monolithic Materials with and without a Binder with Carbon Molecular Sieving Properties", Materials Science Forum, Vols. 587-588, pp. 805-809, 2008
Online since
June 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hai Lan Huang, Guo Ming Wang, Rong Jun Qu, Xu Bo
Abstract:A novel chelating resin, crosslinking polystyrene-supported glucosamine (PS-GA), was prepared and its static adsorption properties for Ag(Ⅰ)...
478
Authors: Ping Tang, Xiong Yang, Ying Shu Liu
Abstract:Five types of active carbon’s adsorption isotherm of nitrogen at 77K were measured, and their adsorption characteristic were analysed. The...
586
Authors: Xiong Yang, Ying Shu Liu, Yong Ling Li
Chapter2: Research on Material Engineering and Material Applications
Abstract:Nine types of active carbon materials’ adsorption isotherm of nitrogen at 77K were measured, and their surface texture parameters were...
177
Authors: Paul Ewart, Harrisson Jull, Rainer Künnemeyer, Peter N. Schaare
Chapter 3: Metal Injection Moulding
Abstract:The chemical elements used in the binder system for the injection moulding of titanium metal powders will change the final composition when...
161
Authors: Mariane Silva da Silveira, Cristina Moniz Araujo Lopes, Francisco C.L. Melo, Rosa Maria Rocha
Chapter 2: Glasses, Glass Ceramics and Correlated Materials
Abstract:The aim of this work was to fabricate glass-ceramic substrates using aqueous tape casting technique of the parent glass powder in the...
71