Abstract In this study, an attrition device was applied to generate experimental data for two fresh FCC catalyst samples named I and II. The behavior of mass loss of fine particles due to the attrition was studied using the application of Response Surface Methodology (RSM) in Central Composite Design (CCD). Response surface linear model and response surface quadratic model were proposed for catalyst I and II respectively. In the next step, attrition parameters i.e. time and air jet flow rate were selected, 2D contour plots and 3D response surfaces were generated consequently. For catalyst I, the parameters did not effect on each other in fine production while the air jet flow rate was more effective. Interactive term (the effect of time and air jet flow rate on each other) had a great role in attrition processing of catalyst II so that the air jet flow rate became more effective by the progress of time. Those results are helpful to estimate the attrition behavior especially fines particle production in the industrial scale which directly affects the FCC economy.

中文翻译：

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通过 2D/3D 等高线图和响应面模型对 FCC 催化剂进行实验磨损研究

摘要 在本研究中，使用磨损装置生成两种新鲜 FCC 催化剂样品 I 和 II 的实验数据。使用响应面方法 (RSM) 在中心复合设计 (CCD) 中的应用研究了由于磨损导致的细颗粒质量损失的行为。针对催化剂Ⅰ和Ⅱ分别提出了响应面线性模型和响应面二次模型。在下一步中，选择磨损参数，即时间和空气射流流速，从而生成 2D 等高线图和 3D 响应面。对于催化剂Ⅰ，在精细生产中参数不相互影响，而空气喷射流量更有效。交互作用项（时间和空气射流速度相互影响）对催化剂II的磨损处理有很大作用，因此随着时间的推移，空气射流速度变得更加有效。这些结果有助于估计直接影响 FCC 经济性的工业规模的磨损行为，尤其是细颗粒生产。