Rh-based catalysts for syngas production via SCT-CPO reactors

被引：7
|
作者：
Specchia, S. [1 ]
Vella, L. D. [1 ]
De Rogatis, L. [2 ,3 ]
Montini, T. [2 ,3 ,4 ]
Specchia, V. [1 ]
Fornasiero, P. [2 ,3 ,4 ]
机构：
[1] Politecn Torino, Dipartimento Sci Mat & Ingn Chim, I-10129 Turin, Italy
[2] Univ Trieste, Dipartimento Sci Chim, I-34127 Trieste, Italy
[3] Univ Trieste, INSTM Trieste, I-34127 Trieste, Italy
[4] ICCOM CNR, Unita Ric Trieste, I-34127 Trieste, Italy
来源：
CATALYSIS TODAY | 2010年 / 155卷 / 1-2期
关键词：
Syngas production; Methane catalytic partial oxidation; Short time contact; Fixed bed reactor; Rhodium catalyst; Alumina carrier; Egg-shell/egg-yolk catalyst type; METHANE PARTIAL OXIDATION; SUPPORTED RHODIUM CATALYSTS; SYNTHESIS GAS; CARBON-MONOXIDE; NATURAL-GAS; CONVERSION; CH4; NANOPARTICLES; HYDROGEN; DIOXIDE;
D O I：
10.1016/j.cattod.2009.04.008
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Short contact time catalytic partial oxidation (SCT-CPO) of natural gas is a promising technology for syngas production, representing an appealing alternative to existing processes. This process is likely to become more important in the future due to its advantages in thermodynamics, mildly exothermic overall reaction, H-2/CO ratio of 2, ideal for downstream processes. The present work refers to an experimental study of syngas production from CH4 and O-2 via a SCT-CPO reactor made of a fixed bed of Rh/Al2O3 spheres, with Rh deposited in egg-shell or egg-yolk configuration. In the WHSV range from 120 to 470 Nl h (1) g(cat) (1), five different fixed bed structures were investigated. The best performances in term of CH4 conversion and H-2 selectivity, together with no coke formation, were obtained with an physical mixture of egg-shell and egg-yolk catalysts at WHSV values of 150-300 Nl h (1) g(cat) (1). (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：101 / 107
页数：7
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