The influence of Y-zeolite unit cell size on the performance of FCC catalysts during gas oil catalytic cracking

被引：53

作者：

Al-Khattaf, S ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

来源：

APPLIED CATALYSIS A-GENERAL | 2002年 / 231卷 / 1-2期

关键词：

FCC catalysts; Y-zeolite; deactivation; unit cell sized; dynamic activity;

D O I：

10.1016/S0926-860X(02)00071-6

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：

FCC catalysts were prepared from Y-zeolite with different unit cell size (UCS). The matrix of the catalysts composed of kaolin filler and silica sol binder, The experimental data clearly show that UCS controls the product distribution of VGO cracking with Y-zeolite catalysts. Coke model was presented to predict coke formation as a function of VGO conversion and catalyst UCS. Gasoline yield was slightly higher at low UCS range (lower than 24.36 Angstrom) while, coke, LPG, and dry gas yields were higher at high UCS range (higher than 24.36 Angstrom). The effect of UCS on hydrogen transfer and isomerization reactions was also investigated. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：293 / 306

页数：14

共 32 条

[1] Activity and selectivity of fluidized catalytic cracking catalysts in a riser simulator: The role of Y-zeolite crystal size [J].

Al-Khattaf, S ;

de Lasa, H .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (04) :1350-1356

[2] Catalytic cracking of cumene in a riser simulator: A catalyst activity decay model [J].

Al-Khattaf, S ;

de Lasa, H .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2001, 40 (23) :5398-5404

[3] Diffusion and reactivity of gas oil in FCC catalysts [J].

Al-Khattaf, S ;

de Lasa, HI .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2001, 79 (03) :341-348

[4]

ALKHATTAF S, 2001, THESIS U W ONTARIO C

[5]

ALKHATTAF S, 2001, SUDIES SURFACE SCI C, V134

[6] INFLUENCE OF FRAMEWORK ALUMINUM GRADIENTS ON THE CATALYTIC ACTIVITY OF Y-ZEOLITES - CRACKING OF GAS-OIL ON Y-ZEOLITES DEALUMINATED BY DIFFERENT PROCEDURES [J].

ARRIBAS, J ;

CORMA, A ;

FORNES, V ;

MELO, F .

JOURNAL OF CATALYSIS, 1987, 108 (01) :135-142

[7] RECENT PROCESS-RELATED AND CATALYST-RELATED DEVELOPMENTS IN FLUID CATALYTIC CRACKING [J].

BISWAS, J ;

MAXWELL, IE .

APPLIED CATALYSIS, 1990, 63 (02) :197-258

[8] The role of pore topology on the behaviour of FCC zeolite additives [J].

Corma, A ;

González-Alfaro, V ;

Orchillés, AV .

APPLIED CATALYSIS A-GENERAL, 1999, 187 (02) :245-254

[9] Hydrogen transfer, coke formation, and catalyst decay and their role in the chain mechanism of catalytic cracking [J].

Cumming, KA ;

Wojciechowski, BW .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1996, 38 (01) :101-157

[10]

DEJONG JI, 1988, P AKZ CAT S, V1

← 1 2 3 4 →