Skip to main content
Log in

Low-temperature regeneration of activated carbon

II. Kinetic evaluation of consecutive o-NO2-phenol thermodesorptions

  • Published:
Journal of thermal analysis Aims and scope Submit manuscript

Abstract

Activated granular carbon samples, routinely equilibrated with synthetic aqueous solutions of o-NO2-phenol, were regenerated by heating up to 500 °C in a dynamic N2 atmosphere. Kinetic evaluation of five subsequent thermodesorption cycles was accomplished by two different non-isothermal computation methods. Quantitative estimation of adsorbent-adsorbate interactions was carried out by means of the thermal coefficient of the massive adsorbate release.

Zusammenfassung

Routinemäßig mit synthetischen wässrigen Lösungen von o-Nitrophenol äquilibrierte, granulierte Aktivkohle-Proben wurden durch Aufheizen auf 500 °C in einer dynamischen N2-Atmosphäre regeneriert. Fünf aufeinanderfolgende Thermodesorptionszyklen wurden nach zwei verschiedenen nicht-isothermen Berechnungsmethoden kinetisch ausgewertet. Die quantitative Bestimmung der Adsorbent-Adsorbat-Wechselwirkungen wurde mittels der thermischen Koeffizienten der massiven Adsorbatdesorption ausgeführt.

Резюме

Образцы гранулирова нного активированно го углерода, обычно нахо дящиеся в равновесии с водными растворами о-нитрофе нола, были регенерированы нагр еванием их до 500 °С в динамической атмосфере азота. Кине тическая оценка пяти последов ательных термодесорбционных циклов была проведен а двумя различными неизотер мическими расчетными методами. Количественное опре деление взаимодействия типа адсорбент—адсорбат осуществлено с помощ ью термического коэф фициента разъединения массив ного адсорбата.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. V. Amicarelli, G. Baldassarre and L. Liberti, J. Thermal Anal., 18 (1980) 155.

    Google Scholar 

  2. V. Amicarelli, G. Baldassarre and L. Liberti, Proc. VI ICTA, Bayreuth, 1980, p. 433.

  3. G. Baldassarre, in F. Sandrolini (Ed.), Proc. 1st Nat. Meet. ASMI, Pitagora Publs., Bologna, 1983, p. 625.

    Google Scholar 

  4. V. Amicarelli, G. Baldassarre and L. Liberti, Thermochim. Acta, 30 (1979) 255.

    Google Scholar 

  5. R. C. Mackenzie, J. Thermal Anal., 21 (1981) 173.

    Google Scholar 

  6. D. T. Y. Chen and Kai Wing Lai, J. Thermal Anal., 20 (1981) 233.

    Google Scholar 

  7. J. Zsakó, J. Thermal Anal., 15 (1979) 369.

    Google Scholar 

  8. A. W. Coats and J. P. Redfern, Nature, 201 (1964) 68.

    Google Scholar 

  9. V. M. Gorbachev, J. Thermal Anal., 26 (1983) 319.

    Google Scholar 

  10. S. Boy and K. Böhme, Thermochim. Acta, 75 (1984) 263.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Baldassarre, G., Amicarelli, V. Low-temperature regeneration of activated carbon. Journal of Thermal Analysis 30, 339–343 (1985). https://doi.org/10.1007/BF02156499

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02156499

Keywords

Navigation