The synthesis and physicochemical and catalytic properties of SHS zeolites

被引：5
|
作者：
Velichkina, L. M. [1 ]
Korobitsyna, L. L. [1 ]
Vosmerikov, A. V. [1 ]
Radomskaya, V. I. [2 ]
机构：
[1] Russian Acad Sci, Inst Petr Chem, Siberian Branch, Tomsk 634055, Russia
[2] Russian Acad Sci, Far E Div, Inst Geol & Nat Management, Blagoveshchensk, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2007年 / 81卷 / 10期
关键词：
Zeolites;
D O I：
10.1134/S0036024407100135
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Superhigh-silica ZSM-type zeolites with silica moduli of 100-220 were synthesized using hexamethylenediamine as a structure-forming additive. Physicochemical methods were used to identify them as ZSM-5-type zeolites, determine their degree of crystallinity, specific surface areas, and morphology of crystals, and study the phase and elemental composition. The strength and concentration of acid centers were found to decrease as the silica modulus grew. The zeolites obtained can be used as the main component of catalysts for refining low-octane gasoline fractions and methanol conversion into hydrocarbons.
引用
收藏
页码：1618 / 1622
页数：5
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