Effect of the zeolite modulus of Pt/MOR/Al2O3 catalysts on the n-heptane isomerization reaction

被引：2
|
作者：
Smolikov M.D. [1 ,2 ]
Shkurenok V.A. [1 ]
Yablokova S.S. [1 ]
Kir’yanov D.I. [1 ]
Doronin V.P. [1 ]
Sorokina T.P. [1 ]
Bikmetova L.I. [1 ]
Gulyaeva T.I. [1 ]
Paukshtis E.A. [3 ]
Belyi A.S. [1 ,2 ]
机构：
[1] Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk
[2] Omsk State Technical University, Omsk
[3] Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk
来源：
Catalysis in Industry | 2016年 / 8卷 / 2期
关键词：
mordenite; n-heptane isomerization; platinum catalysts;
D O I：
10.1134/S2070050416020112
中图分类号：
学科分类号：
摘要：
The effect of the mordenite acidic modulus (SiO2/Al2O3, 20 and 30) of Pt/MOR/Al2O3 catalysts on the heptane isomerization reaction is investigated. The content of zeolite in the catalysts is varied from 10 to 50 wt %, with platinum applied to the samples from solutions of different precursors: H2PtCl6 and [Pt(NH3)4]Cl2. It is established via the TPD of ammonia and FTIR spectroscopy (the adsorption of NH3 and СО) that the total acidity of zeolite falls as the modulus grows: the number of Brønsted (BAC) and Lewis (LAC) acidic sites is reduced, accompanied by an increase in the strength of their acidity. The catalysts are tested in the n-heptane isomerization reaction. It is shown that the selectivity of n-heptane isomerization falls substantially when the acidic mordenite modulus is increased from 20 to 30. © 2016, Pleiades Publishing, Ltd.
引用
收藏
页码：121 / 127
页数：6
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