Dealkylation of alkyl polycyclic aromatic hydrocarbon over silica monolayer solid acid catalyst

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• 作者：Naonobu Katada^a ; ^{katada@chem.tottori-u.ac.jp} ; Yusuke Kawaguchi^a ; Kazuki Takeda^a ; Taku Matsuoka^a ; Naoki Uozumi^a ; Kazuki Kanai^a ; Shohei Fujiwara^a ; Keisuke Kinugasa^a ; Koshiro Nakamura^a ; Satoshi Suganuma^b ; Masato Nanjo^a
• 关键词：Alkyl polycyclic aromatic hydrocarbons dealkylation ; Silica monolayer solid acid catalyst ; Vacuum gas oil
• 刊名：Applied Catalysis A: General
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：530
• 期：Complete
• 页码：93-101
• 全文大小：1239 K
• 卷排序：530

文摘

Dealkylation of alkylnaphthalene was found to proceed on a silica monolayer catalyst loaded on alumina with high activity and selectivity (without cracking of alkyl part). The activity was generated by deposition of silica with generating Brønsted acidity, and both the activity and Brønsted acid amount showed the maximum at ca. 10 Si nm‐2 where the monolayer covered the surface. The activity of silica monolayer was observed even after calcination at 973–1173 K, while amorphous silica-alumina lost more quickly the activity.