Elucidation of Pd modification effect on catalytic behaviors of γ-Al2O3-P catalysts toward ethanol dehydration and dehydrogenation

被引：22

作者：

Autthanit, Chaowat ^{[1
]}

Khaochartchai, Chakkrit ^{[1
]}

Praserthdam, Piyasan ^{[1
]}

Jongsomjit, Bunjerd ^{[1
]}

机构：

[1] Chulalongkorn Univ, Fac Engn, Ctr Excellence Catalysis & Catalyt React Engn, Dept Chem Engn, Bangkok 10330, Thailand

来源：

CATALYSIS COMMUNICATIONS | 2021年 / 148卷 / 148期

关键词：

Ethanol dehydration; Diethyl ether; Ethylene; Alumina; Phosphorous; Palladium; DIETHYL-ETHER; ALUMINA CATALYSTS; ETHYLENE; PALLADIUM; ACID; PERFORMANCE; OXIDATION; ZEOLITE;

D O I：

10.1016/j.catcom.2020.106169

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic ethanol dehydration and dehydrogenation over gamma-Al2O3-P catalysts with Pd modification were investigated. The Al2O3-P is promising to obtain the highest yield of diethyl ether (ca. 38.4%) at 350 degrees C attributing to increased portion of weak/moderate to strong acid site. Further investigation was conducted with Pd modification on this catalyst. It revealed that the 0.5Pd/Al2O3-P catalyst produced diethyl ether yield of ca. 33.3% at 350 degrees C with significant amount of acetaldehyde at low temperature. Increased reaction temperature to 400 degrees C obtained the highest ethylene yield (ca. 43.7%) with this catalyst because of both acid site and Pd site.

引用

页数：7

共 35 条

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