FCC catalyst attrition behavior at high temperatures
Publish place: Journal of Particle Science & Technology، Vol: 5، Issue: 4
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JPST-5-4_002
تاریخ نمایه سازی: 5 اردیبهشت 1400
Abstract:
In this work, high temperature attrition was studied in a standard attrition set-up to mimic the FCC regenerator environment with mechanical attrition. Operating conditions were modified in this pilot due to the application of high temperatures. Two parameters, i.e., time and temperature in the ranges of ۱ to ۵h and ۶۷۳-۹۷۳K, were surveyed, respectively. The behavior of attrition and mass loss was then modeled and validated. At higher temperatures mass loss response sensitivity became larger. Finally, PSD and SEM tests were used to investigate the attrition mechanism. In the ambient tests, abrasion was significant while at higher temperatures, fragmentation was considerable. PSD plots shifted into larger particles and SEM images showed those changes as well. In addition, significant reshaping in the PSD curves indicated particle cracking at high temperatures.
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Authors
Saba Foroutan Ghazvini
Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran
Ali Afshar Ebrahimi
Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran
Seyed Hadi Jafarnia
RFCC Senior Process Engineer, Process Engineering Department, Arak Oil Refinery, Arak, Iran
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