SILICOALUMINOPHOSPHATE NUMBER-18 (SAPO-18) - A NEW MICROPOROUS SOLID ACID CATALYST

被引：89

作者：

CHEN, JS

THOMAS, JM

WRIGHT, PA

TOWNSEND, RP

机构：

[1] UCL ROYAL INST GREAT BRITAIN, DAVY FARADAY RES LAB, 21 ALBEMARLE ST, LONDON W1X 4BS, ENGLAND

[2] UNILEVER PLC, RES, PORT SUNLIGHT LAB, WIRRAL L63 3JW, ENGLAND

来源：

CATALYSIS LETTERS | 1994年 / 28卷 / 2-4期

基金：

欧盟地平线“2020”;

关键词：

COKE; ZEOLITES; CATALYST REGENERATION; OXIDATION;

D O I：

10.1007/BF00806053

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：

SAPO-18, which has a microporous framework structure related to, but crystallographically distinct from, that of the solid acid catalyst SAPO-34, was synthesized hydrothermally from a silicoaluminophosphate gel containing N,N-diisopropylethylamine as a structure-directing template. Although both materials have similar Si/(Si + Al + P) ratios, the content of Bronsted acid sites in SAPO-18 is considerably less than that in SAPO-34. As catalysts for methanol conversion to light olefins, SAPO-18 and SAPO-34 have closely similar initial activity and selectivity, but the lifetime of SAPO-18 is distinctly superior to that of SAPO-34.

引用

页码：241 / 248

页数：8

共 21 条

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[2]

CHEN J, 1993, Patent No. 93186443

[3]

CHEN J, UNPUB J PHYS CHEM

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