乙二胺四乙酸二鈉鹽、乙二胺四乙酸鈣二鈉及L-半胱氨酸鹽酸鹽抗氧化劑於超臨界二氧化碳中溶解度的測量與分析

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Title:	乙二胺四乙酸二鈉鹽、乙二胺四乙酸鈣二鈉及L-半胱氨酸鹽酸鹽抗氧化劑於超臨界二氧化碳中溶解度的測量與分析
Authors:	謝欣霖
Contributors:	化學工程與材料工程學系
Keywords:	抗氧化劑 Antioxidant 溶解度 Solubility 超臨界二氧化碳 Supercritical carbon dioxide
Date:	2012
Issue Date:	2012-10-11 09:15:30 (UTC+8)
Abstract:	本研究利用半流動式超臨界流體實驗設備，對三種臺灣核准的抗氧化劑，乙二胺四乙酸二鈉鹽（EDTA Disodium Salt）、乙二胺四乙酸鈣二鈉（EDTA Calcium Disodium）以及L-半胱氨酸鹽酸鹽（L-cysteine Hydrochloride）進行溶解度實驗。乙二胺四乙酸二鈉鹽量測溫度為308.2到318.2K，壓力範圍為10到22 MPa。乙二胺四乙酸鈣二鈉量測溫度為308.2到318.2K，壓力範圍為12到24 MPa。L-半胱氨酸鹽酸鹽量測溫度為308.2到318.2K，壓力範圍為12到24 MPa。實驗結果顯示，三種抗氧化劑於超臨界二氧化碳中的溶解度莫耳分率均介於10-7到10-6 mol%之間。本研究也同時利用了兩條半經驗方程式Mendez-Santiago and Teja Model（MST Model）和Chrastil Model，進行溶解度數據回歸，並藉由平均絕對相對偏差（Average Absolute Relative Deviation AARD）來判斷本實驗結果之合理性。 The solubilities for three anti-oxidants permitted in Taiwan of EDTA Disodium Salt, EDTA Calcium Disodium and L-cysteine Hydrochloride in supercritical carbon dioxide were measured in this study using a semi-flow type apparatus. For EDTA Disodium Salt, the experiment data were taken at 308.2 to 318.2K and the pressure range from 10 to 22MPa; for EDTA Calcium Disodium, at 308.2 to 318.2K and the pressure range from 12 to 24MPa; for L-cysteine Hydrochloride, at 308.2 to 318.2K and the pressure range from 12 to 24MPa. According to the measured results, the solid solubilities of these three compounds in supercritical carbon dioxide were between 10-7 to 10-6 mol %.Meanwhile, the regression has been made by using using semi-empirical equation presented by Chrastil, and that presented by Mendez-Santiago and Teja(MST), and with the average absolute relative deviation (AARD), the result of this research could be determined.
Appears in Collections:	[Department of Chemical & Materials Engineering] thesis

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