Influence of the Kind of the Tin Precursor on the Properties of Pt/Sn-Al2O3-Cl Heptane Reforming Catalysts

被引：1

作者：

Tregubenko, V. Yu. ^{[1
]}

Gulyaeva, T. I. ^{[1
]}

Belyi, A. S. ^{[1
]}

机构：

[1] Russian Acad Sci, Boreskov Inst Catalysis, Ctr New Chem Technol, Siberian Branch, Omsk 644040, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2022年 / 95卷 / 10期

关键词：

heptane reforming; Pt; Sn-Al2O3-Cl catalysts; tin(IV) chloride; tin(IV) hydroxide; PLATINUM;

D O I：

10.1134/S107042722210007X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The influence exerted by the kind of the tin precursor [SnCl(4)Greek ano teleia5H(2)O or H2Sn(OH)(6)] and by the Cl- content (0.86-0.97 wt %) on the adsorption and catalytic properties of Pt sites in Pt/Sn-Al2O3-Cl heptane reforming catalysts was studied. The kind of the Sn precursor does not significantly influence the dispersity of the Pt particles. Among Pt sites, electron-deficient Pt forms prevail in the presence of Sn and at increased Cl- content. The acidity of the surface of the Pt/Al2O3-Cl catalyst increases on introducing Sn and with an increase in the Cl- content owing to strong acid sites. The catalyst containing 0.2 wt % Sn from H2Sn(OH)(6) and 0.86 wt % Cl- exhibits the highest selectivity of the heptane aromatization and slightly increased selectivity of the C1-4 gas formation.

引用

页码：1564 / 1572

页数：9

共 26 条

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