TY - JOUR
T1 - High pressure adsorption isotherms of nitrogen onto granular activated carbon for a single bed pressure swing adsorption refrigeration system
AU - Palodkar, Avinash V.
AU - Anupam, Kumar
AU - Roy, Zunipa
AU - Saha, B. B.
AU - Halder, G. N.
N1 - Funding Information:
Authors are thankful to the Ministry of Science and Technology, Government of India for the financial assistance through the project DST/ FTYS/ Dec. 9-10. Authors are also grateful to Anoar Ali Khan and Sumit Dhawane, research scholars of Department of Chemical Engineering National Institute of Technology Durgapur for their immense technical support during the execution of this work. Authors declare that the research work has no conflict of interest.
Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Adsorption characteristics of nitrogen onto granular activated carbon for the wide range of temperature (303–323 K) and pressure (0.2027–2.0265 MPa) have been reported for a single bed pressure swing adsorption refrigeration system. The experimental data were fitted to Langmuir, Dubinin-Astakhov and Dubinin-Radushkevich (D-R) isotherms. The Langmuir and D-R isotherm models were found appropriate in correlating experimental adsorption data with an average relative error of ±2.0541% and ±0.6659% respectively. The isosteric heat of adsorption data were estimated as a function of surface coverage of nitrogen and temperature using D-R isotherm. The heat of adsorption was observed to decrease from 12.65 to 6.98 kJ.mol−1 with an increase in surface concentration at 303 K and it followed the same pattern for other temperatures. It was found that an increase in temperature enhances the magnitude of the heat of adsorption.
AB - Adsorption characteristics of nitrogen onto granular activated carbon for the wide range of temperature (303–323 K) and pressure (0.2027–2.0265 MPa) have been reported for a single bed pressure swing adsorption refrigeration system. The experimental data were fitted to Langmuir, Dubinin-Astakhov and Dubinin-Radushkevich (D-R) isotherms. The Langmuir and D-R isotherm models were found appropriate in correlating experimental adsorption data with an average relative error of ±2.0541% and ±0.6659% respectively. The isosteric heat of adsorption data were estimated as a function of surface coverage of nitrogen and temperature using D-R isotherm. The heat of adsorption was observed to decrease from 12.65 to 6.98 kJ.mol−1 with an increase in surface concentration at 303 K and it followed the same pattern for other temperatures. It was found that an increase in temperature enhances the magnitude of the heat of adsorption.
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U2 - 10.1007/s00231-017-2057-9
DO - 10.1007/s00231-017-2057-9
M3 - Article
AN - SCOPUS:85019227190
VL - 53
SP - 3155
EP - 3166
JO - Warme - Und Stoffubertragung
JF - Warme - Und Stoffubertragung
SN - 0947-7411
IS - 10
ER -