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

页码：121 / 127

页数：6

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