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Prediction of residue coke content and operating modes of regenerator in the catalytic cracking technology
Petroleum Science and Technology ( IF 1.5 ) Pub Date : 2020-09-30 , DOI: 10.1080/10916466.2020.1825966
Galina Nazarova 1 , Elena Ivashkina 1 , Tatyana Shafran 1 , Alexandra Oreshina 1 , Gaini Seitenova 2
Affiliation  

Abstract This work is aimed at predicting the amount of residue coke and the temperature of operating mode of the regenerator, depending on the initial technological conditions of the process during regeneration of catalyst coked at various degrees (0.4–0.6% wt.). Numerical studies were performed using a mathematical model that takes into account the physicochemical regularities of the regeneration process for zeolite-containing catalysts and making it possible to predict not only the amount of the residual coke and the flue gas composition of regeneration, but also the temperature in the regeneration zone. It has been stated that when changing the amount of coke on the coked catalyst from 0.4 to 0.6% wt., the regeneration temperature must be maintained in the range of 673.8–712.8 C to achieve the degree of coke conversion at the level of 92% and to prevent the irreversible deactivation of the catalyst.

中文翻译:

催化裂化技术中渣焦含量及再生器运行方式的预测

摘要 本工作旨在根据不同焦化程度(0.4-0.6% wt.)催化剂再生过程中的初始工艺条件,预测残焦量和再生器运行模式的温度。使用数学模型进行了数值研究,该模型考虑了含沸石催化剂再生过程的物理化学规律,不仅可以预测残留焦炭的量和再生的烟气成分,还可以预测温度在再生区。据说当焦化催化剂上的焦炭量从 0.4% 改变到 0.6% wt. 时,再生温度必须保持在 673.8-712 的范围内。
更新日期:2020-09-30
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