Steam reforming and oxidative steam reforming of ethanol over PtKCo/CeO2 catalyst

被引：36
作者：
Greluk, Magdalena [1 ]
Slowik, Grzegorz [1 ]
Rotko, Marek [1 ]
Machocki, Andrzej [1 ]
机构：
[1] Marie Curie Sklodowska Univ, Fac Chem, Dept Chem Technol, Maria Curie Sklodowska Sq 3, PL-20031 Lublin, Poland
来源：
FUEL | 2016年 / 183卷
关键词：
Hydrogen production; Ethanol steam reforming; Ethanol oxidative steam reforming; Carbonaceous deposit formation; Cobalt-based catalyst; SUPPORTED COBALT CATALYSTS; FISCHER-TROPSCH SYNTHESIS; HYDROGEN-PRODUCTION; BIO-ETHANOL; CO/AL2O3; CATALYSTS; FUEL-CELLS; THERMODYNAMIC ANALYSIS; NI/AL2O3; PRODUCE HYDROGEN; NI;
D O I：
10.1016/j.fuel.2016.06.068
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The PtKCo/CeO2 catalyst obtained by impregnation of high-surface CeO2 (S-BET = 42.5 m(2)/g) with the citrate complex of cobalt and doubly promoted with potassium and platinum was used in the steam reforming of ethanol (SRE - H2O/C2H5OH = 9/1) and oxidative steam reforming of ethanol (OSRE - H2O/C2H5OH/O-2 = 9/1/0.7) processes. Platinum promotion of KCo/CeO2 catalyst improves cobalt dispersion and reduction of cobalt oxides. However, despite physicochemical differences in the properties of KCo/CeO2 and PtKCo/CeO2 catalysts, their behaviour under the SRE and OSRE conditions remains very similar. Probably the addition of platinum (0.22%) is insufficient. The temperature of 540 degrees C is sufficient to achieve complete conversion of ethanol and high selectivity towards hydrogen over the PtKCo/CeO2 catalyst. The presence of oxygen in the feed decreases the deactivation rate of the catalyst but also it decreases selectivity of ethanol conversion to hydrogen. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：518 / 530
页数：13
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