The Direct Synthesis of Aromatic Hydrocarbons from Syngas over Bifunctional MgZrOx/HZSM-5 Catalysts

Autor:	Dong Ma, Laizhi Sun, Lei Chen, Shuangxia Yang, Xinping Xie, Hongyu Si, Baofeng Zhao, Dongliang Hua
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	syngas direct synthesis aromatics Mg-modified ZrO2 catalyst Chemical technology TP1-1185 Chemistry QD1-999
Zdroj:	Catalysts, Vol 13, Iss 6, p 997 (2023)
Druh dokumentu:	article
ISSN:	2073-4344
DOI:	10.3390/catal13060997
Popis:	ZrO2 and catalysts were prepared by a co-precipitate method and coupled with a HZSM-5 zeolite catalyst through a mechanical mixing method; these were applied to the direct synthesis of aromatic hydrocarbons from syngas through an oxygen-containing intermediate route. The physical and chemical properties of the catalysts were characterized by XRD, H2-TPR, CO2-TPD, and SEM methods. The comparative catalytic effects of ZrO2 and MgZrOx catalysts were discussed under different reaction conditions. The reaction results showed that the addition of Mg to a ZrO2 catalyst reduced the selectivity of CO2 by inhibiting the water–gas conversion reaction, and increased the selectivity of aromatics and the proportion of BTX in aromatic products.
Databáze:	Directory of Open Access Journals
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