Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4598
Title: Activated carbon adsorption of fuel oxygenates MTBE and ETBE from water
Authors: İnal, Fikret
Yetgin, Senem
Aksu, Gülsüm T.
Şimşek, Selvi
Sofuoğlu, Aysun
Sofuoğlu, Sait Cemil
Keywords: Adsorption
ETBE
Fuel oxygenate
MTBE
Activated carbon
Activated carbon adsorption
Issue Date: Nov-2009
Publisher: Springer Verlag
Source: İnal, F., Yetgin, S., Aksu, G. T., Şimşek, S., Sofuoğlu, A., and Sofuoğlu, S. C. (2009). Activated carbon adsorption of fuel oxygenates MTBE and ETBE from water. Water, Air, and Soil Pollution, 204(1-4), 155-163. doi:10.1007/s11270-009-0034-8
Abstract: The aqueous phase adsorption of fuel oxygenates methyl tertiary butyl ether (MTBE) and ethyl tertiary butyl ether (ETBE) onto commercially available granular activated carbon (GAC; Norit GAC 1240) was investigated in a batch system at 27°C. The oxygenate concentrations were determined by headspace gas chromatography/mass spectrometry analyses. The experimental data were used with four two-parameter isotherm models (Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich) and two kinetic models (pseudo first-order and pseudo second-order) to determine equilibrium and kinetic parameters. Considering the correlation coefficient and root mean square error, Dubinin-Radushkevich isotherm showed better fit with the equilibrium data for MTBE. However, the performances of Langmuir and Dubinin-Radushkevich models were comparable for ETBE. The adsorption capacities were calculated as 5.50 and 6.92 mg/g for MTBE and ETBE, respectively, at an equilibrium solution concentration of 1 mg/L using Dubinin-Radushkevich isotherm. The differences between the model predictions and experimental data were similar for the pseudo first-order and pseudo second-order kinetic models. Gibbs free-energy changes of adsorption were found to be -22.59 and -28.55 kJ/mol for MTBE-GAC and ETBE-GAC systems, respectively, under the experimental conditions studied.
URI: http://doi.org/10.1007/s11270-009-0034-8
http://hdl.handle.net/11147/4598
ISSN: 0049-6979
0049-6979
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
4598.pdfMakale207.18 kBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

15
checked on Jan 28, 2023

WEB OF SCIENCETM
Citations

17
checked on Dec 24, 2022

Page view(s)

646
checked on Jan 30, 2023

Download(s)

274
checked on Jan 30, 2023

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.