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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/1921
Title: Adsorptive desulfurization and denitrogenation by nickel impregnated activated carbon
Authors: Thaligari S.K.
Gupta S.
Srivastava, Vimal Chandra
Prasad, Basheshwar Rajendra
Published in: Indian Journal of Chemical Technology
Abstract: Nickel impregnated granular activated carbon (Ni-GAC) has been synthesized and characterized by various techniques like BET, FTIR, SEM, EDX and TGA. It is later employed for the individual adsorption of dibenzothiophene (DBT) and quinoline (QN). The influence of various factors such as percentage of Ni loading, initial concentration, time, adsorbent dose and temperature on the individual adsorption of DBT and QN from model fuel by Ni-GAC have been investigated. On the basis of the present study, 1%Ni-GAC is found to be the best among various wt.% Ni-GAC. Equilibrium time for DBT and QN adsorption is found to be 6 hr and 9 hr, respectively. The optimum adsorbent dose is found to be 20 g/L. Adsorption kinetics of the both DBT and QN are represented by pseudo-second-order kinetic model. For single component systems, the experimental equilibrium data is well matched with R-P isotherm. Values of change in enthalpy and entropy for DBT and QN were found to be 2.04, 1.55 kJ/mol and 10 and 20 J/mol K, respectively. Isosteric heat of adsorption is modeled in terms of surface heterogeneity. © 2018, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved.
Citation: Indian Journal of Chemical Technology (2018), 25(6): 522-530
URI: http://repository.iitr.ac.in/handle/123456789/1921
Issue Date: 2018
Publisher: National Institute of Science Communication and Information Resources (NISCAIR)
Keywords: Activated carbon
Adsorption kinetics
Denitrogenation
Desulfurization
Thermodynamic modeling
ISSN: 0971457X
Author Scopus IDs: 57057860900
56404877900
35565811700
15838004000
Author Affiliations: Thaligari, S.K., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Gupta, S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India, Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi 110 016, India
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Prasad, B., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Corresponding Author: Srivastava, V.C.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: vimalcsr@yahoo.co.in
Appears in Collections:Journal Publications [CH]

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