Combined dry reforming and partial oxidation of methane to synthesis gas on noble metal catalysts

被引：186
|
作者：
Nematollahi, Behzad [1 ]
Rezaei, Mehran [1 ,2 ]
Khajenoori, Majid [1 ]
机构：
[1] Univ Kashan, Fac Engn, Dept Chem Engn, Catalyst & Adv Mat Res Lab, Kashan, Iran
[2] Univ Kashan, Inst Nanosci & Nanotechnol, Kashan, Iran
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 04期
关键词：
Combined reforming; Dry reforming; Partial oxidation; Noble metal catalysts; Syngas; CARBON-DIOXIDE; SYNGAS PRODUCTION; NATURAL-GAS;
D O I：
10.1016/j.ijhydene.2010.12.007
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 paper CO2 reforming of methane combined with partial oxidation of methane to syngas over noble metal catalysts (Rh, Ru, Pt, Pd, Ir) supported on alumina-stabilized magnesia has been studied. The catalysts were characterized by using BET, XRD, SEM, TEM, TPR, TPH and H2S chemisorption techniques. The H2S chemisorption analysis showed an active metal crystallite size in the range of 1.8-4.24 nm for the prepared catalysts. The obtained results revealed that the Rh and Ru catalysts showed the highest activity in combined reforming and both the dry reforming and partial oxidation of methane. The obtained results also showed a high catalytic stability without any decrease in methane conversion up to 50 h of reaction. In addition, the H-2/CO ratio was around 2 and 0.7 over different catalysts for catalytic partial oxidation and dry reforming, respectively. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：2969 / 2978
页数：10
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