期刊論文
| 學年 | 91 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2003-03-01 |
| 作品名稱 | Applying the E2-Function to Determine the Pyrolysis Kinetics of calcium Oxalate |
| 作品名稱（其他語言） | 應用E2特殊函數求取草酸鈣之熱裂動力學參數 |
| 著者 | Chen, Hsi-jen; Lai, K. M.; Lin, Y. C. |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | 臺北市：中國化學工程學會 |
| 著錄名稱、卷期、頁數 | Journal of the Chinese institute of chemical engineers=中國化學工程學會會誌 34(2), pp.247-254 |
| 摘要 | A new method, which uses exact formula involving the E2-function, is proposed for the determination of the kinetic parameters of calcium oxalate from non-isothermal thermogravimetric analysis (TGA) data. There are three consecutive pyrolyzed stages in the decomposition of calcium oxalate. In the first stage of the reaction (splitting water), we obtained the possible domain of reaction orders ranging from 0.7 to 0.9. It was observed that the kinetic reaction model best fit a 0.7-order reaction model, and the activation energy was found to be 77.1-119.0 kJ/mole. In the second stage of the reaction (splitting carbon monoxide), among reaction orders ranging from 0.35 to 0.5, the best fit was an order of 0.5, and the activation energy was found to be 203.5-218.9 kJ/mole. In the third stage of the reaction (splitting carbon dioxide), among reaction orders ranging from 0.45 to 0.6, the best fit was an order of 0.45, and the activation energy was found to be 167.6-199.8 kJ/mole. The results were somewhat lower than the data obtained in similar studies reported in the literature. We believe that the proposed methodology has the merits of both accuracy in calculation and simplicity in formulation. 本文提出一個新的方法，即應用由正確解得到的特殊函數E2，從非恆溫熱重分析數據中，求得草酸鈣熱裂的動力學參數。草酸鈣分解有三個階段：第一階段反應分離出水，我們得到其反應冪次範圍在0.7~0.9。我們觀察其反應冪次為0.7時最符合我們的動力學模式，而活化能為77.1~119.0 kJ/mole。第二階段反應分離出一氧化碳，我們得到其反應冪次範圍在0.35~0.5。我們觀察其反應冪次為0.5時最符合我們的動力學模式，而活化能為203.5~218.9 kJ/mole。第三階段反應分離出二氧化碳，我們得到其反應冪次範圍在0.45~0.6。我們觀察其反應冪次為0.45時最符合我們的動力學模式，而活化能為167.6~199.8 kJ/mole。本研究所得之結果稍微低於文獻，我們相信此法較為精確與簡便。 |
| 關鍵字 | pyrolysis kinetics;thermogravimetric analysis (TGA);arrhenius equation;E-2-function |
| 語言 | en_US |
| ISSN | 0368-1653 |
| 期刊性質 | 國內 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/44334 ) |