CHARACTERIZATION OF THE POROUS STRUCTURE AND CRACKING ACTIVITY OF AL-PILLARED SAPONITES

被引：40

作者：

CHEVALIER, S ^{[1
]}

FRANCK, R ^{[1
]}

LAMBERT, JF ^{[1
]}

BARTHOMEUF, D ^{[1
]}

SUQUET, H ^{[1
]}

机构：

[1] UNIV P & M CURIE,REACTIVITE SURFACE LAB,CNRS,URA 1106,CASIER 178,4 PL JUSSIEU,F-75252 PARIS 05,FRANCE

来源：

APPLIED CATALYSIS A-GENERAL | 1994年 / 110卷 / 02期

关键词：

ADSORPTION; AGING; ALUMINUM-SAPONITES; COKING; CRACKING; FCC; PILLARED CLAYS; SAPONITES; SURFACE AREA;

D O I：

10.1016/0926-860X(94)80192-4

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：

A well-characterized saponite was intercalated with [Al13] polyoxo aluminium cations. Its surface area was studied by nitrogen and ethylene glycol adsorption: the relative validity of both techniques in the case of pillared clays was assessed and compared to the theoretically expected value. The structural stability was investigated both in high-temperature treatments and upon aging under air at room temperature. The catalytic properties for cracking of a heavy petroleum feedstock were compared with those of a commercial FCC catalyst and with results from the literature concerning similar systems. Pillared Al-saponites present several interesting properties: thermally stable porous structure and low coking. Their study seems promising in understanding the transformation of the pillars during calcination owing to the location of the aluminium only in the tetrahedral sheets.

引用

页码：153 / 165

页数：13

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