| 第 31 卷第 3 期 |  | Vol. 31 No. 3 | | 2001 年 6 月 | Jun 2001 |
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所屬欄目：分析與測試
溶液中固體催化劑表面酸量的氣相色譜分析 |
| 郭建平; 尹篤林; 毛麗秋;(婁底師范專(zhuān)科學(xué)校; 湖南師范大學(xué);) |
| 摘 要：建立了一種新的定量測定固體酸催化劑表面酸量的方法。以無(wú)水乙醇作溶劑 ,環(huán)己酮作內標 ,吡啶和 2 ,6 二甲基吡啶作吸附質(zhì) ,用氣相色譜定量分析脫鋁超穩Y沸石(DUSY ,硅鋁比為 9 6 8)吸附前后的溶液濃度 ,測出B酸量和L酸量。結果表明 ,該方法簡(jiǎn)單、實(shí)用 ,定性定量結果可靠 |
| 關(guān)鍵詞：脫鋁超穩Y沸石; 固體酸; 氣相色譜; |
| 中圖分類(lèi)號：O658 文獻標識碼：A 文章編號：1009-9212(2001)03-0047-02 |
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| Determination of Surface Acid Amount of DUSY Catalyst by Gas Chromatography |
| GUO Jian ping 1; YUN Du lin 2; MAO Li qiu 2 （1. Loudi Normal School; Loudi 417001; China; 2. Hunan Normal University; Changsha 410081; China）; |
| Abstract：A new method for quantitatively measuring the surface acid amount of solid acid catalyst was set up. the surface acid amount of dealuminated USY zeolite with SiO 2/Al 2O 3 ratio for 9.68 was measured by gas chromatography with pyridine and 2,6 dimethyl pyridine as adsorbates and cyclohexane as internal standard in the presence of anhydrous ethanol solvent and The Brnsted acid amount and Lweis acid amount of dealuminated USY were obtained through GC analysis. The new method is very convenient and applic... |
| Key words：dealuminated USY catalyst; solid acid; gas chromatography; |
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基金項目：國家自然科學(xué)基金資助項目(29772011)
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收稿日期：2001-03-28
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