Hydrogenation of Condensed Aromatic Compounds over Mesoporous Bifunctional Catalysts Following a Diels-Alder Adduct Pathway
作者:Pham Thanh Huyen、Marko Krivec、Marijan Kočevar、Ioana C. Bucur、Cristina Rizescu、Vasile I. Parvulescu
DOI:10.1002/cctc.201501295
日期:2016.3.18
activity. Both catalysts exhibited a strong Lewis acidity associated with the presence of the Al extra‐framework species. The acidity of these catalysts afforded the esterification of the reaction byproduct, that is, succinic anhydride, with methanol or ethanol, and the hydrocracking/decyclization of one hydrogenated ring to lead to 1,2,3,4‐tetrahydronaphthalene derivatives. A good correlation with the calculated
通过湿法浸渍制备了Pt(0.5 wt%)-Al-SBA-15和Pt(0.5 wt%)-Al-MCM-41双功能催化剂,并研究了蒽的氢化和一系列合成Diels的氢解/氢化–与蒽和蒽衍生物形成的加成物。所研究的催化剂的中孔结构允许这些底物的氢化程度很大。与Pt颗粒的大小直接相关,Pt-Al-SBA-15表现出更高的活性。两种催化剂均表现出强的路易斯酸度,这与铝骨架外物质的存在有关。这些催化剂的酸度使反应副产物(即琥珀酸酐)与甲醇或乙醇进行酯化反应,以及一个氢化环的加氢裂化/脱环反应生成1,2,3,4-四氢萘衍生物。已经证明该反应与吉布斯自由能的计算值具有良好的相关性。