Effect of different activated carbon support on CH4-CO2 reforming over Co-based catalysts

被引：32

作者：

Sun, Yinghui ^{[1
]}

Zhang, Guojie ^{[1
,2
]}

Liu, Jiwei ^{[1
]}

Zhao, Peiyu ^{[1
]}

Hou, Peng ^{[1
]}

Xu, Ying ^{[1
]}

Zhang, Riguang ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China

[2] State Key Lab Coal & CBM Comin, Jincheng 048012, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 03期

关键词：

Activated carbon; Support; Co-based catalysts; CO2; reforming; Catalytic activity; SYNTHESIS GAS; SYNGAS PRODUCTION; OXYGEN REDUCTION; COBALT CATALYST; CO3O4; CATALYST; RICH HYDROGEN; METHANE; DIOXIDE; NI; PERFORMANCE;

D O I：

10.1016/j.ijhydene.2017.11.170

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：

CH4-CO2 reforming to syngas was investigated over three different activated carbon catalysts. To better understand the influence of the supports on the catalytic properties, catalysts were analyzed by some characterization methods, such as nitrogen adsorption desorption isotherms, XRD, H-2-TPR, NH3-TPD, CO2-TPD, FTIR, TEM and EDX. The results showed that the catalyst with AC(2) as the support provided the best catalytic activity. The CH4 conversion and CO2 conversion were 92% and 98% at 900 degrees C, respectively; best selectivity with the H-2/CO ratio was close to 1 among the three supports used. It also showed a better stability at 900 degrees C. H-2-TPR analysis showed that Co species in Co/AC(2) catalyst were strong interaction with the support. It was observed that active metals were well dispersed on the AC(2) support by the TEM. In addition, the ratio of CH4/CO2 also had great influence on the CH4 and CO2 conversion. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1497 / 1507

页数：11

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