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

页码：1438 / 1445

页数：8

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