Hamid Reza Homayonfar, H. A. Ebrahim, M. Azarhoosh
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引用次数: 0
摘要
本研究包括四个主要部分。首先,开发了一个异相反应器模型,用于模拟催化剂失活的柴油加氢脱硫(HDS)反应器。其次,研究了运行条件。第三,利用响应面法和人工神经网络(ANN)对第一部分的模拟结果进行建模,以缩短温度路径优化时间。在不同的建模方法中,采用贝叶斯正则化(BR)训练方法的前馈式人工神经网络方法(隐层有 10 个神经元)精度最高。最后,对涓流床反应器的温度路径进行了优化。使用最有效的 ANN 方法作为拟合函数,绘制了硫含量与温度和催化剂运行时间的三维曲线。当硫含量达到欧 6 要求时,温度路径与催化剂工作时间的关系得到优化。
Determining the Optimum Temperature Path Versus the Catalyst Working Time in a Trickle Bed Diesel Hydrodesulfurization Reactor
This study consists of four main parts. First, a heterogeneous reactor model was developed to simulate a diesel hydrodesulfurization (HDS) reactor with catalyst deactivation. Second, operating conditions were investigated. Third, the simulation results from the first part were modeled using the response surface method and artificial neural networks (ANNs) to shorten the temperature path optimization time. Among the different modeling methods, the feed-forward ANN method employing the Bayesian Regularization (BR) training method with 10 neurons in the hidden layer demonstrated the highest accuracy. Finally, the temperature path of the trickle bed reactor was optimized. A three-dimensional curve depicting sulfur output content versus temperature and catalyst operation time was plotted using the most effective ANN approach as a fitness function. When the sulfur content met the Euro-6 requirement, the temperature path versus catalyst working period was optimized.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.