SYNTHESIS OF SAPO-41 AND SAPO-44 AND THEIR PERFORMANCE AS ACIDIC CATALYSTS IN THE CONVERSION OF METHANOL TO HYDROCARBONS

被引：25

作者：

CHEN, JS

THOMAS, JM

机构：

[1] Davy Faraday Research Laboratory, The Royal Institution of Great Britain, London, W1X 4BS

来源：

CATALYSIS LETTERS | 1991年 / 11卷 / 02期

关键词：

SILICON-ALUMINOPHOSPHATES; MOLECULAR SIEVES; SOLID CATALYSTS; METHANOL CONVERSION; OLEFINS;

D O I：

10.1007/BF00764086

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：

Crystalline samples of medium-pore SAPO-41 and small-pore SAPO-44 have been prepared by respective use of diethylamine and cyclohexylamine as templates. They were characterized using X-ray powder diffraction, DTA-TGA and diffuse reflectance infra-red Fourier transform (DRIFT) spectroscopy. SAPO-44 has larger void volume and stronger framework acidity than SAPO-41. Whereas the products of methanol conversion on SAPO-41 are dominated by dimethylether, the main products on SAPO-44 are ethene and propene. Nevertheless, SAPO-44 is less active than SAPO-34 (which possesses a similar framework structure to SAPO-44) and suffers deactivation in about an hour at 450-degrees-C.

引用

页码：199 / 207

页数：9

共 17 条

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