Sulfonate Ionic Liquid as a Stable and Active Catalyst for Levoglucosenone Production from Saccharides via Catalytic Pyrolysis
Sulfonate Ionic Liquid as a Stable and Active Catalyst for Levoglucosenone Production from Saccharides via Catalytic Pyrolysis
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DOI：
10.3390/catal3040757
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发表时间：
2013-12-01
期刊：
影响因子：
3.9
通讯作者：
Hayashi, Jun-ichiro
中科院分区：
文献类型：
--
作者：
Kudo, Shinji;Zhou, Zhenwei;Hayashi, Jun-ichiro
在本研究中，研究了不同类型的离子液体（ILs）在纤维素热解生产左旋葡萄糖酮中的催化活性，左旋葡萄糖酮是一种有价值且用途广泛的化合物，可用于合成多种新化合物。纤维素简单地与il混合，并进行热解，通常在300℃下，产生挥发性产物，包括左旋葡萄糖酮，从il相分离。IL阴离子的类型对催化作用有显著影响，使用负载IL的磺酸阴离子可显著提高左旋葡萄糖酮的收率和IL的回收利用率。详细的热重分析和对其性质的讨论揭示了磺酸盐类化合物的活性和热稳定性。这些il的催化热解应用于葡萄糖分子组成的其他糖类的转化，导致左旋葡萄糖酮的优先形成，但与纤维素相比产率低。
In this study, various types of ionic liquids (ILs) were examined for catalytic activity in the pyrolysis of cellulose for the production of levoglucosenone, which is a valuable and versatile compound for the synthesis of a variety of novel compounds. Cellulose was simply mixed with the ILs and subjected for the pyrolysis, typically at 300 C, to produce volatile products, including levoglucosenone, separated from the ILs phase. The type of IL anion significantly affected the catalysis, and the use of ILs bearing sulfonate anion resulted in distinguished yields of levoglucosenone and IL recoveries for the reutilization. Detailed thermogravimetric analysis and discussion on properties of ILs revealed the active and thermally stable nature of the sulfonate ILs. Catalytic pyrolysis with those ILs was applied to the conversion of other saccharides composed of glucose molecules, resulting in a preferential formation of levoglucosenone but at low yields as compared to that from cellulose.