Impact of iron contaminated species on FCC catalyst

PETR 72

Yuxia Zhu, zhuyuxia@ripp-sinopec.com1, Quangsheng Du, duqs@ripp-sinopec.com2, Wei Lin, linwei@ripp-sinopec.com1, Liwen Tang1, and Jun Long1. (1) 14th Research Group, Research Institute of Petroleum Processing, SINOPEC, China, Beijing, 100083, China, (2) ChangZhou Petroleum,SINOPEC, ChangZhou, 061000, China
Commercial FCC catalysts are selected to be manually contaminated by iron species from different sources such as iron chloridize, iron oxalic acid and iron naphthenic acids. The contaminated samples are characterized and their activities are evaluated in this paper. It was found that different iron contamination sources show great difference on FCC activity. Iron species with macromolecule such as iron naphthenic acids greatly deactivates the catalysts, while small molecular iron sources hardly affect the catalysts. It is proved that the macromolecular irons are the mainly sources that cause the poisoning of FCC catalysts. Detailed characterization of the iron contaminated catalysts shows that the iron content singly can't count for the influence, whereas its distribution on catalyst is the key factors, which is determined by the iron source species.
 

7th International Symposium on Advances in Fluid Cracking Catalysts (FCCs)
1:30 PM-5:30 PM, Monday, 11 September 2006 Palace -- Telegraph Hill, Oral

Division of Petroleum Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006