Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin

Removing of CO2 gases is very important process in many chemical industries today. Alkanolamines are mature in technology for efficiently capturing CO2. However, even if the reaction between CO2 and these amines is significantly fast, their potential application in CO2 capture encounters several dra...

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Main Author:	Jamaludin, Siti Nabihah
Format:	Thesis
Language:	English
Published:	2019
Subjects:	Carbon Activated
Online Access:	https://ir.uitm.edu.my/id/eprint/79248/1/79248.pdf
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spelling	my-uitm-ir.792482023-09-08T04:13:44Z Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin 2019 Jamaludin, Siti Nabihah Carbon, Activated Removing of CO2 gases is very important process in many chemical industries today. Alkanolamines are mature in technology for efficiently capturing CO2. However, even if the reaction between CO2 and these amines is significantly fast, their potential application in CO2 capture encounters several drawbacks. Alternatively, ionic liquids (ILs) seem very attractive with a great advantage. However, gas dissolution into ILs is a physical phenomenon with no chemical reaction and the absorption rate is quite slow. To achieve better performance, some special groups were introduced to the anion. In recent years, the mixed solutions consisted of amine and ILs have received particular interest. Generally, CO2 capture with amine-ILs mixture have been reported having low capability of CO2 loading. However, by tuning the ILs may increase the capacity of CO2 absorption. Hence, the studies on the potential of different types of ionic liquid toward CO2 absorption performance is necessary. Most of CO2 capture with amine-ILs mixture also focused on absorption ability at ambient pressures, while seldom research was concerned at high pressure. This not only limits the CO2 absorption application at high pressure, but also the determination of the operation condition. This work mainly reported CO2 solubilities in aqueous Diethanolamine (DEA) mixed with pyrrolidinium based ILs; 1 -Butyl-1-Methylpyrrolidinium Dicyanamide [BmPyrr][DCA] and 1-Butyl 1-Methylpyrrolidinium Trifiuoromethanesulfonate [BmPyrr][OTf] at various operating temperatures (303.15K-333.15K), pressures (500psi - 700 psi) with 0-10wt% concentration of ILs and 30-40wt% of DEA concentration. 1-Butyl-1- Methylpyrrolidinium Dicyanamide [BmPyrr][DCA] and 1-Butyl-1- Methylpyrrolidinium Trifiuoromethanesulfonate [BmPyrr][OTf] were selected as physical absorbents for capturing CO2. The absorption performance was investigated by conducting the experiment using high pressure reactor. The absorption capacities were calculated based on pressure change until the equilibrium phase were achieved by the system. The results of CO2 solubility in liquid are expressed as Dto2 (mol CCVmol amine) for all the experimental. From the results of this research, it was found that the CO2 solubility performance reduced when [BmPyrr][DCA] is added to the aqueous DEA solution at all temperatures measured and with addition of [BmPyrr][OTfJ at temperatures of 303.15K and 313.15K. However, the absorption capacities for aqueous DEA-[BmPyrr][OTf] mixture exhibits good absorption performance at temperature condition of 323.15K-333.15K. Similar reducing trend of CO2 absorption was observed for aqueous DEA for all measured temperatures. This shows that DEA-[BmPyrr][OTfJ system has better performance compared to DEA-[BmPyrr][DCA], indicating that OTf anion has great potential for capturing CO2 in future application. In term of pressure, the CO2 absorption increases as pressure increases for both DEA-[BmPyrr][DCA] and DEA-[BmPyrr][OTfJ systems. A solubility model was developed to predict the CO2 solubility data as a function operating variables in the studied range in aqueous blends of DEA and ILs. There is an acceptable degree of agreement between experimental data and prediction by Jou and Mather model with an average absolute deviation of 5.165%. Therefore, it can be concluded that this work has achieved the objectives of this research. 2019 Thesis https://ir.uitm.edu.my/id/eprint/79248/ https://ir.uitm.edu.my/id/eprint/79248/1/79248.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Chemical Engineering Mohd Salleh, Ruzitah
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Mohd Salleh, Ruzitah
topic	Carbon Activated
spellingShingle	Carbon Activated Jamaludin, Siti Nabihah Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin
description	Removing of CO2 gases is very important process in many chemical industries today. Alkanolamines are mature in technology for efficiently capturing CO2. However, even if the reaction between CO2 and these amines is significantly fast, their potential application in CO2 capture encounters several drawbacks. Alternatively, ionic liquids (ILs) seem very attractive with a great advantage. However, gas dissolution into ILs is a physical phenomenon with no chemical reaction and the absorption rate is quite slow. To achieve better performance, some special groups were introduced to the anion. In recent years, the mixed solutions consisted of amine and ILs have received particular interest. Generally, CO2 capture with amine-ILs mixture have been reported having low capability of CO2 loading. However, by tuning the ILs may increase the capacity of CO2 absorption. Hence, the studies on the potential of different types of ionic liquid toward CO2 absorption performance is necessary. Most of CO2 capture with amine-ILs mixture also focused on absorption ability at ambient pressures, while seldom research was concerned at high pressure. This not only limits the CO2 absorption application at high pressure, but also the determination of the operation condition. This work mainly reported CO2 solubilities in aqueous Diethanolamine (DEA) mixed with pyrrolidinium based ILs; 1 -Butyl-1-Methylpyrrolidinium Dicyanamide [BmPyrr][DCA] and 1-Butyl 1-Methylpyrrolidinium Trifiuoromethanesulfonate [BmPyrr][OTf] at various operating temperatures (303.15K-333.15K), pressures (500psi - 700 psi) with 0-10wt% concentration of ILs and 30-40wt% of DEA concentration. 1-Butyl-1- Methylpyrrolidinium Dicyanamide [BmPyrr][DCA] and 1-Butyl-1- Methylpyrrolidinium Trifiuoromethanesulfonate [BmPyrr][OTf] were selected as physical absorbents for capturing CO2. The absorption performance was investigated by conducting the experiment using high pressure reactor. The absorption capacities were calculated based on pressure change until the equilibrium phase were achieved by the system. The results of CO2 solubility in liquid are expressed as Dto2 (mol CCVmol amine) for all the experimental. From the results of this research, it was found that the CO2 solubility performance reduced when [BmPyrr][DCA] is added to the aqueous DEA solution at all temperatures measured and with addition of [BmPyrr][OTfJ at temperatures of 303.15K and 313.15K. However, the absorption capacities for aqueous DEA-[BmPyrr][OTf] mixture exhibits good absorption performance at temperature condition of 323.15K-333.15K. Similar reducing trend of CO2 absorption was observed for aqueous DEA for all measured temperatures. This shows that DEA-[BmPyrr][OTfJ system has better performance compared to DEA-[BmPyrr][DCA], indicating that OTf anion has great potential for capturing CO2 in future application. In term of pressure, the CO2 absorption increases as pressure increases for both DEA-[BmPyrr][DCA] and DEA-[BmPyrr][OTfJ systems. A solubility model was developed to predict the CO2 solubility data as a function operating variables in the studied range in aqueous blends of DEA and ILs. There is an acceptable degree of agreement between experimental data and prediction by Jou and Mather model with an average absolute deviation of 5.165%. Therefore, it can be concluded that this work has achieved the objectives of this research.
format	Thesis
qualification_level	Master's degree
author	Jamaludin, Siti Nabihah
author_facet	Jamaludin, Siti Nabihah
author_sort	Jamaludin, Siti Nabihah
title	Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin
title_short	Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin
title_full	Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin
title_fullStr	Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin
title_full_unstemmed	Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin
title_sort	solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / siti nabihah jamaludin
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Chemical Engineering
publishDate	2019
url	https://ir.uitm.edu.my/id/eprint/79248/1/79248.pdf
_version_	1783736269291913216

Solubility of carbon dioxide in aqueous diethanolamine blended with 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate at high pressure / Siti Nabihah Jamaludin

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