H2-production from CO2-assisted ethanol steam reforming: The regeneration of Ni-based catalysts

被引：28
作者：
Bednarczuk, Lukasz [1 ,2 ]
Ramirez de la Piscina, Pilar [1 ,2 ]
Homs, Narcis [1 ,2 ,3 ]
机构：
[1] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain
[2] Univ Barcelona, Inst Nanociencia & Nanotecnol, E-08028 Barcelona, Spain
[3] Catalonia Inst Energy Res IREC, Barcelona 08930, Spain
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 15期
关键词：
H-2 from ethanol; Ethanol steam reforming; CO2-assisted ethanol steam reforming; CDESR; CO2 as mild oxidant; CO2-regeneration of Ni catalysts; HYDROGEN-PRODUCTION; PRODUCE HYDROGEN; BIOMASS; REFORMATION; SUPPORT; OXIDE;
D O I：
10.1016/j.ijhydene.2015.01.061
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：
Al2O3-, MgO-, Y2O3-, La2O3- and ZrO2-supported Ni catalysts were prepared using supports obtained by precipitation in the presence of active carbon as a ternplating agent. The effect of CO2 introduction as reactant on the ethanol steam reforming (ESR) was analysed as a function of the characteristics of the catalysts using H2O/ethanol = 1.6. The catalysts were characterized before and after their use in the CO2-assisted ethanol steam reforming (CDESR, ethanol/H2O/CO2 = 1/1.6/1.6 mol ratio). For Ni/La2O3 poorer structured carbon deposits were found after CDESR. Moreover, for Ni/Y2O3 and Ni/La2O3 the regeneration by CO2-treatment during ESR was studied. The CO2 treatment partially restored their catalytic performance, CO2 can act as a mild oxidant removing part of the carbonaceous deposits; this behaviour is related with the basic characteristics of the catalysts. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：5256 / 5263
页数：8
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