A bimetallic catalyst on a dual component support for low temperature total methane oxidation

被引：66

作者：

Osman, Ahmed I. ^{[1
,2
]}

Abu-Dahrieh, Jehad K. ^{[1
]}

Laffir, Fathima ^{[3
]}

Curtin, Teresa ^{[3
]}

Thompson, Jillian M. ^{[1
]}

Rooney, David W. ^{[1
]}

机构：

[1] Queens Univ Belfast, Sch Chem & Chem Engn, CenTACat, David Keir Bldg,Stranmillis Rd, Belfast BT9 5AG, Antrim, North Ireland

[2] South Valley Univ, Fac Sci Qena, Dept Chem, Qena 83523, Egypt

[3] Univ Limerick, Mat & Surface Sci Inst, Dept Chem & Environm Sci, Limerick, Ireland

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2016年 / 187卷

关键词：

Palladium; Platinum; Titania; Zeolite; Methane oxidation; PD-PT CATALYSTS; PALLADIUM CATALYSTS; PD/AL2O3; CATALYSTS; COMBUSTION; REDUCTION; BEHAVIOR; ZEOLITE; ALUMINA; STATE; CONVERSION;

D O I：

10.1016/j.apcatb.2016.01.017

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：

Palladium, platinum bimetallic catalysts supported on eta-Al2O3, ZSM-5(23) and ZSM-5(80), with and without the addition of TiO2, were prepared and used for low temperature total methane oxidation (TMO). The catalysts were tested under reaction temperatures of 200-500 degrees C with a GHSV of 100,000 mLg(-1) h(-1). It was found that all four components, palladium, platinum, an acidic support and oxygen carrier were needed to achieve a highly active and stable catalyst. The optimum support being 17.5% TiO2 on ZSM-5(80) where the T-10% was observed at only 200 degrees C. On addition of platinum, longer time on stream experiments showed no decrease in the catalyst activity over 50 h at 250 degrees C. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：408 / 418

页数：11

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[1] Kinetics of methane combustion over Pt and Pt-Pd catalysts [J].