Rosalinda Santos - Academia.edu (original) (raw)
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Papers by Rosalinda Santos
The Canadian Journal of Chemical Engineering, 2009
The adsorption of cobalt phthalocyanine dye onto activated carbon in a continuous stirred tank ad... more The adsorption of cobalt phthalocyanine dye onto activated carbon in a continuous stirred tank adsorber was studied. The variables investigated were: adsorbent mass, adsorbent particle size and fluid flowrate. Several models based on film, pore and surface diffusion were constructed and fitted to the experimental data. Experimental results showed: (i) the increasing importance of the film mass transfer resistance for increasing adsorbent loads; (ii) the increasing importance of the surface diffusion mechanism for increasing adsorbent loads; and (iii) the better discrimination among different models for higher adsorbent loads and lower flowrate. On a ttudiC I'adsorption de colorant de phthalocyanine de cobalt sur du carbone active dans un adsorbeur B reservoir agite continu. Les variables Ctudiees sont les suivantes: la masse de I'adsorbant, la taille des particules de I'adsorbant et le debit du fluide. Plusieurs modkles bases sur la diffusion du film, des pores et de la surface ont 6te mis au point et adaptes aux donnCes experimentales Les risultats expkrjmentaux montrent (i) ]'importance croissante de la rCsistance de transfert de matibre du film et (ii) I'importance croissante du mecanisme de diffusion en surface lorsque I'on augmente la charge en adsorbant et (iii) une meilleure discrimination parmi les diffkrents modkles pour les grandes charges en adsorbant et les faibles debits.
The Canadian Journal of Chemical Engineering, 2009
The adsorption of cobalt phthalocyanine dye onto activated carbon in a continuous stirred tank ad... more The adsorption of cobalt phthalocyanine dye onto activated carbon in a continuous stirred tank adsorber was studied. The variables investigated were: adsorbent mass, adsorbent particle size and fluid flowrate. Several models based on film, pore and surface diffusion were constructed and fitted to the experimental data. Experimental results showed: (i) the increasing importance of the film mass transfer resistance for increasing adsorbent loads; (ii) the increasing importance of the surface diffusion mechanism for increasing adsorbent loads; and (iii) the better discrimination among different models for higher adsorbent loads and lower flowrate. On a ttudiC I'adsorption de colorant de phthalocyanine de cobalt sur du carbone active dans un adsorbeur B reservoir agite continu. Les variables Ctudiees sont les suivantes: la masse de I'adsorbant, la taille des particules de I'adsorbant et le debit du fluide. Plusieurs modkles bases sur la diffusion du film, des pores et de la surface ont 6te mis au point et adaptes aux donnCes experimentales Les risultats expkrjmentaux montrent (i) ]'importance croissante de la rCsistance de transfert de matibre du film et (ii) I'importance croissante du mecanisme de diffusion en surface lorsque I'on augmente la charge en adsorbant et (iii) une meilleure discrimination parmi les diffkrents modkles pour les grandes charges en adsorbant et les faibles debits.