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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2750
Title: Studies of adsorption kinetics and regeneration of aniline, phenol, 4-chlorophenol and 4-nitrophenol by activated carbon | Proučavanje kinetike adsorpcije i regeneracije anilina, fenola, 4-hlorfenola i 4-nitrofenola pomoću aktivnog uglja
Authors: Suresh S.
Srivastava, Vimal Chandra
Mishra I.M.
Published in: Chemical Industry and Chemical Engineering Quarterly
Abstract: The present paper reports kinetic studies of the adsorption of aniline (AN), phenol (P), 4-chlorophenol (CP) and 4-nitrophenol (NP) from aqueous solution onto granular activated carbon (GAC). In FTIR spectral analysis, the transmittance of the peaks gets increased after the loading of AN, P, CP and NP signifying the participation of these functional groups in the adsorption and it seems that the adsorption of AN, P, CP and NP is chemisorptive in nature. The rates of adsorption were found to obey a pseudo-second order model and that the dynamics of AN, P, CP and NP adsorption are controlled by a combination of surface and pore diffusion. The diffusion coefficients were of the order of 10-10 m2 s-1. Thermal desorption at 623 K was found to be more effective than solvent desorption. GAC performed well for at least five adsorption-desorption cycles, with continuous decrease in adsorption efficiency after each thermal desorption. Owing to its relative high heating value, the spent GAC can be used as a co-fuel for the production of heat in a boiler or a furnace.
Citation: Chemical Industry and Chemical Engineering Quarterly (2013), 19(2): 195-212
URI: https://doi.org/10.2298/CICEQ111225054S
http://repository.iitr.ac.in/handle/123456789/2750
Issue Date: 2013
Keywords: Aniline
Desorption
GAC
Kinetics
Phenols
Pseudo-first-order
Pseudo-second- order
Solvent
Thermal
ISSN: 14519372
Author Scopus IDs: 22935957500
35565811700
23668474600
Author Affiliations: Suresh, S., Department of Chemical Engineering, Maulana Azad National Institute of Technology Bhopal, Bhopal, India
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Mishra, I.M., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Corresponding Author: Suresh, S.; Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, India; email: sureshpecchem@gmail.com
Appears in Collections:Journal Publications [CH]

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