Kinetics on the Integration of Methanol Aromatization with Raffinate Oil over ZSM-5/ZSM-11 Zeolite,Industrial & Engineering Chemistry Research

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Kinetics on the Integration of Methanol Aromatization with Raffinate Oil over ZSM-5/ZSM-11 Zeolite
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-12-09 , DOI: 10.1021/acs.iecr.1c03354
Shumei Wei _{1,

2} , Yarong Xu ₂ , Xiang Ge ₁ , Xuedong Zhu ₁ , Jigang Zhao _{1,

3} , Jichang Liu ₁ , Hui Sun ₁ , Benxian Shen ₁

Affiliation

Facing the rapid growth of the demand for aromatic hydrocarbons, combined with China’s energy development status of “coal-rich, lean oil, and low gas”, the methanol-to-aromatics (MTA) process has good development prospects. In this paper, the influence of reaction temperature, space velocity, and other conditions on the reaction performance of methanol-coupled light hydrocarbons to aromatics was investigated and then a lumped reaction kinetics study was carried out. The results of the study are: To investigate the composition and distribution of the products obtained by the reaction, according to the needs of lumped reaction kinetics research, six lumped mixed raw materials, C1, olefin alkanes, and aromatic hydrocarbons classified by different categories were constructed; based on the MTA reaction mechanism, assuming each reaction series, the reaction network and lumped kinetic equations were established; simplex algorithm and the Levenberg–Marquardt optimization method were used to fit the regression to obtain the kinetic model parameters; through the statistical test calculation of the model, each set of the overall decisive indicators are all greater than 90% and F > 10F_0.05, so the established kinetic model of methanol-coupled light hydrocarbon to aromatics is suitable.

中文翻译：

甲醇芳构化与残油在ZSM-5/ZSM-11沸石上的整合动力学

面对芳烃需求的快速增长，结合我国“富煤、贫油、低气”的能源发展现状，甲醇制芳烃（MTA）工艺具有良好的发展前景。本文研究了反应温度、空速等条件对甲醇偶联轻烃制芳烃反应性能的影响，并进行了集中反应动力学研究。研究结果为：为考察反应所得产物的组成和分布，根据集总反应动力学研究的需要，将C1、烯烃烷烃、芳烃按不同类别分类的六种集总混合原料分别为建造; 基于MTA反应机理，假设每个反应系列，建立了反应网络和集总动力学方程；使用单纯形算法和Levenberg-Marquardt优化方法拟合回归得到动力学模型参数；通过模型的统计检验计算，每组整体决定性指标均大于90%，且F > 10 F _0.05，因此建立的甲醇偶联轻烃与芳烃的动力学模型是合适的。

更新日期：2021-12-22

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