Investigating the effect of key factors, their interactions and optimization of naphtha steam cracking by statistical design of experiments
Investigating the effect of key factors, their interactions and optimization of naphtha steam cracking by statistical design of experiments
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DOI：
10.1016/j.jaap.2009.12.007
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发表时间：
2010-03-01
影响因子：
6
通讯作者：
Mohamadalizadeh, A.
中科院分区：
文献类型：
--
作者：
Keyvanloo, K.;Towfighi, J.;Mohamadalizadeh, A.
考察了石脑油蒸汽裂解过程中温度、汽油比、停留时间及其二次和三次交互作用对乙烯和丙烯产率的影响。温度、蒸汽与石脑油的比率和停留时间分别在1053-1153 K、0.5-0.9 g/g和0.15-0.4 s的范围内变化。在实验结果的基础上，采用统计实验设计（DoE）对石脑油蒸汽裂解进行了模拟。同时还报道了石脑油蒸汽裂解多目标优化的结果。新开发的模型用于优化目的。解决了两个MOO问题;这些问题涉及乙烯、丙烯和选择性的最大化和严重性的最小化。由三个最显著的参数定义的响应从全因子设计中获得，并找到了最佳的参数set. The的DoE方法的优越性，比传统的改变一个单独的因素，在一个时间的方法是由这样一个事实，我们能够研究更高的相互作用和优化三个单独的因素，只有27个运行。(C)2010 Elsevier B. V.保留所有权利。
The effect of temperature, steam-to-naphtha ratio, and residence time and their quadratic and cubic interactions on the yield of light olefins (ethylene and propylene) in naphtha steam cracking has been investigated. The temperature, steam-to-naphtha ratio, and residence time were varied in the range 1053-1153 K, 0.5-0.9 g/g, and 0.15-0.4 s, respectively. Based on the experimental results, naphtha steam cracking was modeled by use of statistical design of experiments (DoE). The results for the successful multiobjective optimization (MOO) of the naphtha steam cracking have also been reported. The new developed model is employed for the optimization purposes. Two MOO problems are solved; these problems involved maximization of ethylene, propylene and selectivity and minimization of severity. The response defined by the three most significant parameters was obtained from full factorial design and the optimal parameter set was found. The superiority of the DoE method over the conventional change one separate factor at a time approach is shown by the fact that we were able to study the higher interactions and optimize three individual factors with only 27 runs. (C) 2010 Elsevier B.V. All rights reserved.