Ring Opening of Decalin Over Zeolite-Supported Iridium Catalysts

被引：36
|
作者：
Kubicka, David [1 ]
Kangas, Matias [2 ]
Kumar, Narendra [2 ]
Tiitta, Marja [3 ]
Lindblad, Marina [3 ]
Murzin, Dmitry Yu. [2 ]
机构：
[1] VUANCH, Dept Refinery & Petrochem Res, AS, Litvinov 43670, Czech Republic
[2] Abo Akad Univ, Proc Chem Ctr, Lab Ind Chem, SF-20500 Turku, Finland
[3] Neste Oil Oy, Porvoo 06101, Finland
来源：
TOPICS IN CATALYSIS | 2010年 / 53卷 / 19-20期
关键词：
Ring opening; Decalin; Iridium; Platinum; Zeolites; COUPLED HYDROGENATION; TETRALIN; SELECTIVITY; MOLECULES; ACIDITY; RH;
D O I：
10.1007/s11244-010-9604-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Selective ring opening of decalin was investigated over various metal-modified zeolites in order to shed light on the key parameters affecting the selectivity to ring-opening products at low extent of cracking reactions. Ir-modified zeolites H-Y and H-Beta having different concentration and strength of acid sites were studied in a batch reactor at 250-310 A degrees C and 20-60 bar H(2) and their performance was compared with that of Pt-modified zeolites. The concentration of Bronsted acid sites, reaction temperature and hydrogen pressure were shown to be the crucial reaction parameters. To obtain high selectivity to formation of ring-opening products from decalin, mildly acidic Ir-modified Beta was the best choice when the reaction was carried out at temperature of 270 A degrees C or lower and at H(2) pressure of 60 bar. Under these conditions the selectivity and yield of ring-opening products exceeded 65 and 60%, respectively.
引用
收藏
页码：1438 / 1445
页数：8
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