Wuqiang Si, Xuangan Liu, Zhiren Xu, Shuyao Chen, Shunli Kou, Xiaomei Zhang, Su Yao, Weiguo Huang, Chuang Xing, Jian Sun
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引用次数: 0
Abstract
γ‐Butyrolactone (GBL) is an important product of the hydrogenation reaction of maleic anhydride (MA). In this study, Cu@Silicalite‐1 (Cu@S1) catalyst with 20% Cu loading was synthesized using a combination of impregnation & solid‐phase synthesis. The effect of Cu and Silicalite‐1 zeolite binding methods on the MA hydrogenation was investigated methodically. MA conversion reached 96.2% and GBL selectivity reached 27.6% at 240 °C, with maintained catalytic activity after propionic acid corrosion for 150 h on the Cu@S1 catalyst. S1 zeolite as a critical factor for significant effect on MA selective hydrogenation raction over Cu‐based catalysts, it was conducive to improving GBL selectivity and reducing the generation of propionic acid (PA) by‐products. The encapsulation of Cu particles by S1 zeolite promoted metal dispersion, increased the hydrogenation activity and promoted the adsorption of reactants, which provided a reference for improving the acid and water resistance of the catalysts
γ-丁内酯（GBL）是马来酸酐（MA）加氢反应的重要产物。本研究采用浸渍&和固相合成相结合的方法合成了含 20% Cu 的 Cu@Silicalite-1 (Cu@S1) 催化剂。研究了 Cu 和 Silicalite-1 沸石结合方法对 MA 加氢反应的影响。Cu@S1 催化剂在 240 ℃ 下的 MA 转化率达到 96.2%，GBL 选择性达到 27.6%，丙酸腐蚀 150 h 后催化活性保持不变。S1 沸石是 Cu 基催化剂对 MA 选择性加氢牵引产生显著效果的关键因素，它有利于提高 GBL 选择性并减少丙酸（PA）副产物的生成。S1 沸石对 Cu 颗粒的包裹促进了金属的分散，提高了氢化活性，促进了反应物的吸附，为提高催化剂的耐酸性和耐水性提供了参考。
期刊介绍：
With an impact factor of 4.495 (2018), ChemCatChem is one of the premier journals in the field of catalysis. The journal provides primary research papers and critical secondary information on heterogeneous, homogeneous and bio- and nanocatalysis. The journal is well placed to strengthen cross-communication within between these communities. Its authors and readers come from academia, the chemical industry, and government laboratories across the world. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies, and is supported by the German Catalysis Society.
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