Desorption of toluene from modified clays using supercritical carbon dioxide



Document title: Desorption of toluene from modified clays using supercritical carbon dioxide
Journal: Brazilian journal of chemical engineering
Database: PERIÓDICA
System number: 000308922
ISSN: 0104-6632
Authors: 1

Institutions: 1Universidade Federal Rural do Rio de Janeiro, Departamento de Engenharia Quimica, Rio de Janeiro. Brasil
Year:
Season: Dic
Volumen: 21
Number: 4
Pages: 641-646
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract The main objective of this work is to study the regeneration capacity of modified clays using supercritical fluid. These modified clays are used as organic compound adsorvents. The experimental step was done using a packed column with the clay contaminated by toluene. The results obtained showed the influence of the density of the supercritical CO2 and of the organic modifier in the desorption process. These data were modeled with first- and second-order models. Better results were obtained using the second-order model. This study makes possible the scale-up of the desorption process for regeneration of solid matrices using supercritical fluids
Disciplines: Química
Keyword: Química orgánica,
Ingeniería química,
Tolueno,
Desorción,
Fluidos supercríticos,
Arcillas
Keyword: Chemistry,
Organic chemistry,
Chemical engineering,
Toluene,
Desorption,
Supercritical fluids,
Clays
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