第 31 卷第 3 期Vol. 31 No. 3
2001 年 6 月Jun 2001
所属栏目：分析与测试

溶液中固体催化剂表面酸量的气相色谱分析
郭建平; 尹笃林; 毛丽秋;(娄底师范专科学校; 湖南师范大学;)
摘　要：建立了一种新的定量测定固体酸催化剂表面酸量的方法。以无水乙醇作溶剂 ,环己酮作内标 ,吡啶和 2 ,6 二甲基吡啶作吸附质 ,用气相色谱定量分析脱铝超稳Y沸石(DUSY ,硅铝比为 9 6 8)吸附前后的溶液浓度 ,测出B酸量和L酸量。结果表明 ,该方法简单、实用 ,定性定量结果可靠
关键词：脱铝超稳Y沸石; 固体酸; 气相色谱;
中图分类号：O658　　文献标识码：A　　文章编号：1009-9212(2001)03-0047-02
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 Brnsted 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;
基金项目：国家自然科学基金资助项目(29772011)
收稿日期：2001-03-28
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