SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD

SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD

The sorption kinetics of some aromatics (toluene, p-xylene, o-xylene and p-diethylbenzene) was studied experimentally with a high sensitivity microbalance (± 1µg) at temperatures between 150 and 210oC and concentrations in the adsorbed phase of a maximum of 1 mmol/g. In general, the sorption rates d...

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Main Authors: C.L. Cavalcante Jr., V.E. Lima, I.G. Souza, O.L.S. Alsina
Format: Article
Language:English
Published: Brazilian Society of Chemical Engineering 1997-09-01
Series:Brazilian Journal of Chemical Engineering
Subjects:
Sorption kinetics
gravimetric method
diffusion models
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321997000300001
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spelling doaj-b53f255d1e9642e1949df05e8b68b0462020-11-25T01:59:40ZengBrazilian Society of Chemical EngineeringBrazilian Journal of Chemical Engineering0104-66321678-43831997-09-0114310.1590/S0104-66321997000300001SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHODC.L. Cavalcante Jr.V.E. LimaI.G. SouzaO.L.S. AlsinaThe sorption kinetics of some aromatics (toluene, p-xylene, o-xylene and p-diethylbenzene) was studied experimentally with a high sensitivity microbalance (± 1µg) at temperatures between 150 and 210oC and concentrations in the adsorbed phase of a maximum of 1 mmol/g. In general, the sorption rates decreased in the following order: toluene > p-xylene > o-xylene > p-diethylbenzene. Two diffusion models were tested against the experimental results. One model considers the mass transfer inside the zeolitic micropores as the controlling diffusion step. The other model supposes that resistance to mass transfer in the macropores (formed during pelletization of the crystals with the amorphous ligand) is the limiting step. The results observed for both models are presented and analyzedhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321997000300001Sorption kineticsgravimetric methoddiffusion models
collection DOAJ
language English
format Article
sources DOAJ
author C.L. Cavalcante Jr.
V.E. Lima
I.G. Souza
O.L.S. Alsina
spellingShingle C.L. Cavalcante Jr.
V.E. Lima
I.G. Souza
O.L.S. Alsina
SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD
Brazilian Journal of Chemical Engineering
Sorption kinetics
gravimetric method
diffusion models
author_facet C.L. Cavalcante Jr.
V.E. Lima
I.G. Souza
O.L.S. Alsina
author_sort C.L. Cavalcante Jr.
title SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD
title_short SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD
title_full SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD
title_fullStr SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD
title_full_unstemmed SORPTION KINETICS OF AROMATICS IN Y ZEOLITE PELLETS USING THE GRAVIMETRIC METHOD
title_sort sorption kinetics of aromatics in y zeolite pellets using the gravimetric method
publisher Brazilian Society of Chemical Engineering
series Brazilian Journal of Chemical Engineering
issn 0104-6632
1678-4383
publishDate 1997-09-01
description The sorption kinetics of some aromatics (toluene, p-xylene, o-xylene and p-diethylbenzene) was studied experimentally with a high sensitivity microbalance (± 1µg) at temperatures between 150 and 210oC and concentrations in the adsorbed phase of a maximum of 1 mmol/g. In general, the sorption rates decreased in the following order: toluene > p-xylene > o-xylene > p-diethylbenzene. Two diffusion models were tested against the experimental results. One model considers the mass transfer inside the zeolitic micropores as the controlling diffusion step. The other model supposes that resistance to mass transfer in the macropores (formed during pelletization of the crystals with the amorphous ligand) is the limiting step. The results observed for both models are presented and analyzed
topic Sorption kinetics
gravimetric method
diffusion models
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321997000300001
work_keys_str_mv AT clcavalcantejr sorptionkineticsofaromaticsinyzeolitepelletsusingthegravimetricmethod
AT velima sorptionkineticsofaromaticsinyzeolitepelletsusingthegravimetricmethod
AT igsouza sorptionkineticsofaromaticsinyzeolitepelletsusingthegravimetricmethod
AT olsalsina sorptionkineticsofaromaticsinyzeolitepelletsusingthegravimetricmethod
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