A high performance multi-walled carbon nanotube-supported palladium catalyst in selective hydrogenation of acetylene-ethylene mixtures

被引：35

作者：

Bazzazzadegan, H. ^{[1
]}

Kazemeini, M. ^{[1
]}

Rashidi, A. M. ^{[2
]}

机构：

[1] Sharif Univ Technol, Dept Chem & Petr Engn, Tehran 113659465, Iran

[2] RIPI, Nanotechnol Res Ctr, Tehran, Iran

来源：

APPLIED CATALYSIS A-GENERAL | 2011年 / 399卷 / 1-2期

关键词：

Selective hydrogenation; Ethylene yield; Nanocatalyst; Multi-walled carbon nanotube; PD CATALYSTS; HYDRODESULFURIZATION ACTIVITY; PD/SIO2; CATALYSTS; ALUMINA; ETHYNE; COKE; FEEDSTOCKS; PLATINUM; KINETICS; BEHAVIOR;

D O I：

10.1016/j.apcata.2011.03.055

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：

In this research, a palladium nanocatalyst was synthesised over a multi-walled carbon nanotube (MWCNT) support and then applied for selective hydrogenation of acetylene in an ethylene-richflow stream. This material displayed a very promising selectivity toward ethylene production with increasing temperature, and also suppressed oligomer formation during acetylene hydrogenation. New operating conditions for selective hydrogenation of acetylene in an ethylene-richflow were introduced. This nanocatalyst gave a considerably higher yield, as high as 93%, than that previously obtained for ethylene production. It was postulated that the governing mechanism for acetylene hydrogenation over 0.5 wt.% Pd/MWCNT was hydrogen transfer. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：184 / 190

页数：7

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