Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic distillation system
Methanol and methyl acetate form an azeotrope in their mixtures at 34.78 mole % of methanol. It is difficult and may be impossible to separate azeotropic mixture using conventional distillation column. This phenomenon gives big challenges in the chemical industry in order to solve it. In this...
| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2008
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| Online Access: | http://eprints.uthm.edu.my/7137/ http://eprints.uthm.edu.my/7137/1/24p%20NOR%20FAIZAH%20RAZALI.pdf |
| _version_ | 1848889012037615616 |
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| author | Razali, Nor Faizah |
| author_facet | Razali, Nor Faizah |
| author_sort | Razali, Nor Faizah |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | Methanol and methyl acetate form an azeotrope in their mixtures at 34.78
mole % of methanol. It is difficult and may be impossible to separate azeotropic
mixture using conventional distillation column. This phenomenon gives big
challenges in the chemical industry in order to solve it. In this study, potassium
chloride was added in ultrasonic distillation system to study the combination effect
of salt and ultrasonic wave on methanol-methyl acetate mixture. The salt was added
with different range of concentration to select the optimum concentration that can
eliminate the azeotropic point. Ultrasonic wave with frequency of 25 kHz and
intensity of 200 W/A.cm were used. The studies on the effect of different salt
concentration at 0 wt%, 5 wt%, 10 wt% and 15 wt% to VLE of binary mixtures were
done at that frequency and intensity to obtain the best salt concentration. The results
obtained show that, as the salt concentration increased in the liquid phase, the
equilibrium line shifts upwards and in the same time, the azeotropic point also move
upward. The salt concentration used in this work give the results in the following
order 15 wt% >10 wt% > 5 wt% > 0 wt% where the azeotropes point form at 70
mole %, 54 mole %, 48 mole % and 38 mole % of methanol accordingly. As the
result, the best concentration of the potassium chloride for the methanol-methyl
acetate separation in this project was at 15 wt% of concentration. These results show
that the combination of ultrasonic and salt as a separating agent gave positive results
and have a potential to be apply for industry in the future. |
| first_indexed | 2025-11-15T20:19:24Z |
| format | Thesis |
| id | uthm-7137 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:19:24Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-71372022-06-08T02:13:19Z http://eprints.uthm.edu.my/7137/ Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic distillation system Razali, Nor Faizah QD Chemistry QD450-801 Physical and theoretical chemistry Methanol and methyl acetate form an azeotrope in their mixtures at 34.78 mole % of methanol. It is difficult and may be impossible to separate azeotropic mixture using conventional distillation column. This phenomenon gives big challenges in the chemical industry in order to solve it. In this study, potassium chloride was added in ultrasonic distillation system to study the combination effect of salt and ultrasonic wave on methanol-methyl acetate mixture. The salt was added with different range of concentration to select the optimum concentration that can eliminate the azeotropic point. Ultrasonic wave with frequency of 25 kHz and intensity of 200 W/A.cm were used. The studies on the effect of different salt concentration at 0 wt%, 5 wt%, 10 wt% and 15 wt% to VLE of binary mixtures were done at that frequency and intensity to obtain the best salt concentration. The results obtained show that, as the salt concentration increased in the liquid phase, the equilibrium line shifts upwards and in the same time, the azeotropic point also move upward. The salt concentration used in this work give the results in the following order 15 wt% >10 wt% > 5 wt% > 0 wt% where the azeotropes point form at 70 mole %, 54 mole %, 48 mole % and 38 mole % of methanol accordingly. As the result, the best concentration of the potassium chloride for the methanol-methyl acetate separation in this project was at 15 wt% of concentration. These results show that the combination of ultrasonic and salt as a separating agent gave positive results and have a potential to be apply for industry in the future. 2008-11 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/7137/1/24p%20NOR%20FAIZAH%20RAZALI.pdf Razali, Nor Faizah (2008) Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic distillation system. Masters thesis, Universiti Teknologi Malaysia. |
| spellingShingle | QD Chemistry QD450-801 Physical and theoretical chemistry Razali, Nor Faizah Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic distillation system |
| title | Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic
distillation system |
| title_full | Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic
distillation system |
| title_fullStr | Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic
distillation system |
| title_full_unstemmed | Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic
distillation system |
| title_short | Effects of salt concentration on vapor-liquid equilibrium (VLE) of azeotropic mixture in ultrasonic
distillation system |
| title_sort | effects of salt concentration on vapor-liquid equilibrium (vle) of azeotropic mixture in ultrasonic
distillation system |
| topic | QD Chemistry QD450-801 Physical and theoretical chemistry |
| url | http://eprints.uthm.edu.my/7137/ http://eprints.uthm.edu.my/7137/1/24p%20NOR%20FAIZAH%20RAZALI.pdf |