二氧化碳吸收劑(醇胺水溶液及極低共熔溶劑水溶液)及混合溶劑除濕液(乙二醇/氯化鎂/水)之蒸氣壓量測研究

Measurements of Vapor Pressure of Carbon Dioxide Absorbents (Aqueous Alkanolamines Solutions and Deep Eutectic Solvents) and Viscosity of Mixed-Solvent Desiccant (Glycols/ MgCl2/ H2O)

吳昇鴻(Sheng-Hong Wu)

指導教授 ： 李夢輝

中原大學/工學院/化學工程研究所/碩士(2011年)

https://doi.org/10.6840/cycu201100476

摘要

本篇研究主要為量測新型的二氧化碳吸收劑(極低共熔溶劑 + 水 )與醇胺混合水溶液(醇胺 + 水)及(醇胺 + 醇胺 + 水)之蒸汽壓及新型混合溶劑除濕液(醇類 + 水 + 鹽類)系統之黏度，系統如下：
極低共熔溶劑水溶液為Reline、Maline、Glyceline及Ethaline (20, 40, 60 and 80 wt%)；雙成分醇胺水溶液為monoethanolamine (MEA)、diethanolamine (DEA)、triethanolamine (TEA)、methyldiethanolamine (MDEA)及2-amino-2-methyl-1-propanol (AMP) (30 wt%)，三成分混合醇胺水溶液為PZ、MEA、DEA (20 wt%) + TEA, MDEA, AMP (10 wt%)；混合除濕液為二醇類diethylene glycol (DEG)、tetraethylene gloycol (T4EG)、dipropylene glycol (DPG)及tripropylene glycol (TPG) (4.0, 9.0 and 16.0 wt%) +氯化鎂(magnesium chloride) (40 wt%)，量測溫度範圍為(303.15 - 343.15) K。
醇類水溶液之黏度採用過剩動黏度之關係式來回歸計算，混合溶劑部分則採用Söhnel等學者(1985; 1988)提出的經驗式加以改良來進行回歸；蒸氣壓部分則是利用安東尼方程式(Antoine equation)及Vogel-Tamman-Fulcher type 方程式回歸計算，描述系統蒸氣壓數值、溫度與濃度之間的關係。其實驗數據所得之結果有相當好的符合性。

關鍵字

極低共熔溶劑 ； 黏度 ； 蒸氣壓 ； 二氧化碳吸收劑

並列摘要

This study presented experimental data on vapor pressures of carbon dioxide absorbents at temperatures from (303.15 to 343.15) K. The CO2 absorbents used were deep eutectic solvents (DESs) + water systems at concentrations (20, 40, 60 and 80 wt%); 30 wt% alkanolamine + water systems; and mixed alkanolamines + water systems at 30 wt% total amine concentration. The DESs considered were choline chloride + urea (Reline), choline chloride + malonic acid (Maline), choline chloride + glycerol (Glyceline) and choline chloride + ethylene glycol (Ethaline) while the alkanolamines were monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), methyldiethanolamine (MDEA), 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ). In addition, the viscosities of mixed-solvent desiccant systems (glycol + water + MgCl2) were measured in the same temperature range and at (4.0, 9.0 and 16.0 wt%) MgCl2 + 40 wt% glycol (diethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol) concentrations.
Vapor pressures and viscosities were reported as functions of temperature and composition. The temperature and composition were correlated with the vapor pressure data using the Antoine equation and with the viscosity using a modified Vogel-Tamman-Fulcher equation. The applied correlations were found to yield satisfactory results.

並列關鍵字

viscosity ； carbon dioxide absorbents ； vapor pressure ； deep eutectic solvent

參考文獻

Abbott, A. P., Cullis, P. M., Gibson, M. J., "Extraction of Glycerol from Biodiesel into a Eutectic Based Ionic Liquid," Green Chem. 2007, 9 868-872.

Abbott, A. P., McKenzie, K. J., "Application of Ionic Liquids to the Electrodeposition of Metals," Phys. Chem. Chem. Phys. 2006, 8 4265-4279.

Astarita, G., Savage, D. W., Bisio, A., Gas Treating with Chemical Solvents. New York, 1983.

Bahadori, A., Vuthaluru, H. B., "Prediction of Methanol Loss in Vapor Phase During Gas Hydrate Inhibition Using Arrhenius-Type Functions," J. Loss Prev. Pro. Ind. 2010, 23 379-384.

Baltus, R. E., Culbertson, B. H., Dai, S., "Low-Pressure Solubility of Carbon Dioxide in Room-Temperature Ionic Liquids Measured with a Quartz Crystal Microbalance," J. Phys. Chem. 2004, 108 (2) 721-727.