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采用了一种不同于一般方法的断流脉冲微反技术。它可以只让反应器中某一段时间内的反应产物进入色谱分离柱,因此适合于考察反应物与产物在催化剂床层上均有强吸附而造成色谱分析中严重拖尾的催化反应体系。应用此技术考察了氧化镁催化剂上,苯酚-甲醇体系的选择性烷基化反应。并以酸性和碱性吸附质对催化剂进行预处理后,再进行活性的比较。根据实验结果对表面反应可能的机理进行了讨论。
Using a different from the general method of pulse pulsed micro-anti-technology. It allows the reaction product in the reactor to enter the chromatographic column only for a certain period of time. Therefore, it is suitable for examining the catalytic reaction system in which the reactant and the product strongly adsorb on the catalyst bed to cause severe tailing in the chromatographic analysis. This technique was used to investigate the selective alkylation of phenol-methanol systems over magnesia catalysts. And the acidic and basic adsorbent on the catalyst pretreatment, then the activity of comparison. The possible mechanism of surface reaction is discussed based on the experimental results.