Resumo

COLLAZZO, G. C. et al. Thermal reactivation of a spent bleaching clay: kinetic and thermodynamic. Lat. Am. appl. res. [online]. 2013, vol.43, n.1, pp. 55-58. ISSN 1851-8796.

Spent bleaching clay from the oil refining industry was subjected to heat regeneration in a box furnace with air. The heat reactivation was conducted without previous extraction of residual oil and with previous extraction of oil using organic solvent. The experimental temperature ranged from 723 at 873 K. A model for the kinetic of thermal reactivation of spent adsorbent has been proposed. The activation energy involved on the desorption phenomenon was determined.

Palavras-chave : Spent Bleaching Clay; Thermal Reactivation; Kinetic.