Size-controlled Pd Nanoparticles Supported on α-Al2O3 as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene

被引：11

作者：

Zhang Huoli ^{[1
]}

Yang Yuanyi ^{[1
,2
]}

Dai Wei ^{[2
]}

Lu Shuliang ^{[2
]}

Yu Haibo ^{[2
]}

Ji Yuanyuan ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Dept Chem Engn, Beijing 100029, Peoples R China

[2] Sinopec Beijing Res Inst Chem Ind, Beijing 100013, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2014年 / 22卷 / 05期

关键词：

Pd nanoparticles; sodium carboxymethyl cellulose; acetylene hydrogenation; PALLADIUM NANOPARTICLES; AG; PERFORMANCE; AL2O3; MODEL;

D O I：

10.1016/S1004-9541(14)60070-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Size-controlled Pd nanoparticles (PdNPs) were synthesized in aqueous solution, using sodium carboxymethyl cellulose as the stabilizer. Size-controlled PdNPs were supported on alpha-Al2O3 by the incipient wetness impregnation method. The PdNPs on alpha-Al2O3 support were in a narrow particle size distribution in the range of 1-6 nm. A series of PdNPs/alpha-Al2O3 catalysts were used for the selective hydrogenation of acetylene in ethylene-rich stream. The results show that PdNPs/alpha-Al2O3 catalyst with 0.03% (by mass) Pd loading is a very effective and stable catalyst. With promoter Ag added, ethylene selectivity is increased from 41.0% to 63.8% at 100 degrees C. Comparing with conventional Pd-Ag/alpha-Al2O3 catalyst, PdNPs-Ag/alpha-Al2O3 catalyst has better catalytic performance in acetylene hydrogenation and shows good prospects for industrial application.

引用

页码：516 / 521

页数：6