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題 名 | Effect of Physical Carbonization and Activation Methods on the Preparation of Activated Carbon from Corn Cob=物理活化及碳化方法對以玉米穗軸製造活性碳程序的影響 |
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作 者 | 張瓊芬; 張慶源; 李世龍; 王旭淵; 蔣本基; 曾四恭; 蔡文田; | 書刊名 | 中國環境工程學刊 |
卷 期 | 8:3 1998.09[民87.09] |
頁 次 | 頁227-232 |
分類號 | 445.463 |
關鍵詞 | 活性碳; 物理活化; 碳化; 玉米穗軸; Activated carbon; Physical activation; Carbonization; Corn cob; |
語 文 | 英文(English) |
中文摘要 | 本研究選用農業廢棄物玉米穗軸為原料,探討製造活性碳程序中操作參數對活性 碳產物之吸附性質的影響,例如碳化及活化氣體 (例如 CO �� -N �� )、熱裂解溫度及酸洗 。 研究結果顯示,物理活化製程中所得的活性碳,多為微孔結構。且根據 N �祖漣l脫附曲 線來判斷,孔洞體積中,中孔所佔的比例不容忽視。 改變活化氣體 N �粉P CO �砟夾洏峞A 會顯著影響所得活性碳之表面特性。酸洗可以去除阻塞孔洞的無機成分,有效的增加活性碳 的比表面積及孔洞體積。 |
英文摘要 | A laboratory investigation on the preparation of activated carbons from agrioultural waste corn cob was conducted to examine the effects of process parameters, such as the arbonization and activation agents of N �� and/or CO ��, the pyrolysis temperature, and the acid wash of carbon product, on the adsorptive properties of the resulting activated carbons.Experimental results revealed that the pore characteristics of the resulting activated carbons was mainly microporous, whereas the proportion of mesoprosity was nonnegligible from the incidence of hysteresis loop in the adsorption and desorption isotherms of N ��. The surface characteristics of the resulting activated carbons was significantly influenced by the variation of the activation gases of N �� and CO �� - It was also found that the BET surface areas and the total pore volumes of the carbon products without acid wash were low because of the chemical residues left in the carbon, blocking the pore entrances to the nitrogen molecules during the adsorption isotherm measurements. |
本系統中英文摘要資訊取自各篇刊載內容。