Abstract The synthesis of hydrocarbons from dimethyl ether in an atmosphere of synthesis gas, over a Pd-Zn-HZSM-5/Al2O3 catalyst, under flow-circulation conditions, at a pressure of 10.0 MPa, was investigated. It was found that the resulting hydrocarbon fractions were characterized by a low concentration of aromatic compounds and high concentrations of iso- and cycloalkanes. The dependence of the yields of the main groups of products and individual components on the contact time was explained in terms of the occurrence of methylation, oligomerization, hydrogenation, H-transfer, and hydroisomerization reactions. The role of Pd and Zn in the formation of the products was evaluated.

中文翻译：

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Pd-Zn-HZSM-5/Al2O3催化剂上二甲醚合成烃的初级和次级反应

摘要 研究了在合成气气氛下，在 Pd-Zn-HZSM-5/Al2O3 催化剂上，在流动循环条件下，在 10.0 MPa 压力下，由二甲醚合成烃类。发现所得烃馏分的特征在于低浓度的芳族化合物和高浓度的异烷烃和环烷烃。从甲基化、低聚、氢化、氢转移和加氢异构化反应的发生来解释主要产品组和单个组分的产率对接触时间的依赖性。评价了 Pd 和 Zn 在产物形成中的作用。