FCC catalysts with different zeolite crystallite sizes: acidity, structural properties and reactivity

被引：113

作者：

Tonetto, G

Atias, J

de Lasa, H ^{[1
]}

机构：

[1] Univ Western Ontario, Fac Engn Sci, Chem Reactor Engn Ctr, London, ON N6A 5B9, Canada

[2] Univ Simon Bolivar, Dept Termodinam & Fenomenos Transferencia, Caracas, Venezuela

来源：

APPLIED CATALYSIS A-GENERAL | 2004年 / 270卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Y zeolite; FCC catalysts; nitrogen adsorption; ammonia TPD; surface area; porosity;

D O I：

10.1016/j.apcata.2004.03.042

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：

Two FCC catalysts with a 60 mum average size, prepared with different crystallite sizes (0.4 and 0.9 mum), are studied in terms of total acidity, energy of ammonia desorption, specific surface area, relative amount of Bronsted and Lewis acid sites, crystallite and particle size, and micropore size distribution. Characterization of these catalysts is relevant in view of their application to test the extent of intracrystallite diffusive transport influence on the overall catalytic cracking rates as developed, in separate studies [Ind. Eng. Chem. Res. 42 (2003) 4162] in a novel CREC Riser Simulator. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：9 / 25

页数：17

共 52 条

[1] Effect of HZSM-5 zeolite addition to a fluid catalytic cracking catalyst.: Study in a laboratory reactor operating under industrial conditions [J].