FLUID CATALYTIC CRACKING CATALYST FOR REFORMULATED GASOLINES - KINETIC MODELING

被引：62

作者：

GIANETTO, A ^{[1
]}

FARAG, HI ^{[1
]}

BLASETTI, AP ^{[1
]}

DELASA, HI ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,FAC ENGN SCI,CTR CHEM REACTOR ENGN,LONDON N6A 5B9,ON,CANADA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1994年 / 33卷 / 12期

关键词：

D O I：

10.1021/ie00036a021

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Changes of the relative importance of intradiffusion on USY zeolite crystals were studied as a way of affecting selectivity of catalytic cracking reactions. Zeolite crystals were synthesized (Si/Al = 2.4), activated and stabilized using ion exchange and steam calcination to obtain USSY (Ultra Stable Submicron Y) zeolites. After the activation the zeolites were pelletized (45-60 mu m particles). USSYs were tested in a novel Riser Simulator. Results obtained show that total aromatics (BTX), benzene, C-4 olefins, and coke were significantly affected with the change of zeolite crystal sizes. Gasolines produced with USSY zeolites contain less aromatics and particularly lower benzene levels. Experimental results were analyzed with a model including several lumps: unconverted gas oil, gasoline, light gases, and coke. This model also accounts for catalyst deactivation as a function of coke on catalyst. Various kinetic parameters were determined with their corresponding spans for the 95% level of confidence.

引用

页码：3053 / 3062

页数：10

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