Effect of coke deposition on the remaining activity of FCC catalysts during gas oil and residue cracking

被引：15
|
作者：
Song Haitao [1 ]
Da Zhijian [1 ]
Zhu Yuxia [1 ]
Tian Huiping [1 ]
机构：
[1] SINOPEC, Res Inst Petr Proc, Beijing 100083, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2011年 / 16卷 / 01期
关键词：
Catalytic cracking; FCC catalyst; Feedstock; Coke deposition; Remaining activity; FLUID; DEACTIVATION; ZEOLITES; MIXTURES; COKING;
D O I：
10.1016/j.catcom.2011.09.001
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：
Coked catalysts with proper remaining activity play a crucial role in the operation of several novel FCC technologies. To investigate the influence of feedstocks on coke deposition and deactivation of FCC catalysts, cracking reactions were performed with gas oil and residue feedstocks. The coked catalysts were tested for remaining activity and characterized by N-2 adsorption, XPS and pyridine adsorption FT-IR analysis. At similar coke content, remaining activity of coked catalysts derived from gas oil cracking was much lower than from residue cracking. The characteristic of coke deposition and its influence on remaining activity of deactivated catalysts were discussed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：70 / 74
页数：5
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