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Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents

Adsorption isotherm is an essential component in the understanding of the adsorption process. There are several ways and methods for the measurements, analysis and interpretation of adsorption isotherms either for gas or liquid phase adsorption. However, in the adsorption from solution were usually...

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Main Author: Nur Abidah Ramlan
Format: Thesis
Language:English
English
Published: 2015
Subjects:
TD419-428 Water pollution
Online Access:https://eprints.ums.edu.my/id/eprint/42643/1/24%20PAGES.pdf
https://eprints.ums.edu.my/id/eprint/42643/2/FULLTEXT.pdf
https://eprints.ums.edu.my/id/eprint/42643/
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spelling my.ums.eprints.426432025-01-17T06:22:06Z https://eprints.ums.edu.my/id/eprint/42643/ Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents Nur Abidah Ramlan TD419-428 Water pollution Adsorption isotherm is an essential component in the understanding of the adsorption process. There are several ways and methods for the measurements, analysis and interpretation of adsorption isotherms either for gas or liquid phase adsorption. However, in the adsorption from solution were usually conducted at low region of liquid concentration and the direct interpretation of excess adsorption isotherm as adsorption isotherm. Therefore, a study on the adsorption of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbent for whole range of liquid concentration is conducted. The study includes the measurement of excess adsorption isotherm, theoretical analysis, and interpretation of adsorption isotherm by using Pseudo Ideal Adsorption Model, Gibbs Dividing Plane Model and Langmuir- Freundlich Model as well as validation of theoretical analysis by direct measurement of adsorption. In this study, organic solvents such as acetone, methanol and propanol were chosen as the adsorbates whereas activated carbon and silicalite were chosen as the porous adsorbents. The measurement of excess isotherm was conducted using conventional method where known amount of adsorbent was mixed with known quantity and quality of organic solvent mixture in a sealed container and kept at constant temperature for a certain period to be equilibrated. Then the equilibrated liquid concentration was determined by standard procedure using Gas Chromatography Mass Spectrometer. The result of this study had shown that some agreement for the complete concentration range of adsorption isotherm trend for those interpreted and measured values, but not the magnitude. 2015 Thesis NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42643/1/24%20PAGES.pdf text en https://eprints.ums.edu.my/id/eprint/42643/2/FULLTEXT.pdf Nur Abidah Ramlan (2015) Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents. Masters thesis, Universiti Malaysia Sabah.
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TD419-428 Water pollution
spellingShingle TD419-428 Water pollution
Nur Abidah Ramlan
Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
description Adsorption isotherm is an essential component in the understanding of the adsorption process. There are several ways and methods for the measurements, analysis and interpretation of adsorption isotherms either for gas or liquid phase adsorption. However, in the adsorption from solution were usually conducted at low region of liquid concentration and the direct interpretation of excess adsorption isotherm as adsorption isotherm. Therefore, a study on the adsorption of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbent for whole range of liquid concentration is conducted. The study includes the measurement of excess adsorption isotherm, theoretical analysis, and interpretation of adsorption isotherm by using Pseudo Ideal Adsorption Model, Gibbs Dividing Plane Model and Langmuir- Freundlich Model as well as validation of theoretical analysis by direct measurement of adsorption. In this study, organic solvents such as acetone, methanol and propanol were chosen as the adsorbates whereas activated carbon and silicalite were chosen as the porous adsorbents. The measurement of excess isotherm was conducted using conventional method where known amount of adsorbent was mixed with known quantity and quality of organic solvent mixture in a sealed container and kept at constant temperature for a certain period to be equilibrated. Then the equilibrated liquid concentration was determined by standard procedure using Gas Chromatography Mass Spectrometer. The result of this study had shown that some agreement for the complete concentration range of adsorption isotherm trend for those interpreted and measured values, but not the magnitude.
format Thesis
author Nur Abidah Ramlan
author_facet Nur Abidah Ramlan
author_sort Nur Abidah Ramlan
title Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
title_short Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
title_full Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
title_fullStr Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
title_full_unstemmed Liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
title_sort liquid phase adsorption isotherm of azeotropic and non-azeotropic organic solvent mixture onto porous adsorbents
publishDate 2015
url https://eprints.ums.edu.my/id/eprint/42643/1/24%20PAGES.pdf
https://eprints.ums.edu.my/id/eprint/42643/2/FULLTEXT.pdf
https://eprints.ums.edu.my/id/eprint/42643/
_version_ 1823092339741032448
score 13.244413

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