Synthesis of Anodic Alumina Nickel Catalysts and Deactivation Studies over Them for Methane Steam Reforming under Accelerated Degradation Testing

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Masayuki Yagi¹  Yi Yao¹  Yu Guo¹  Jian Chen¹  Lu Zhou¹  Makoto Sakurai¹  Huabo Li¹  Jun Hatakeyama¹  Hideo Kameyama¹ 

[1] Department of Chemical Engineering, Tokyo University of Agriculture and Technology

关键词: Anodic Alumina Support;    CH4;    Nickel Catalyst;    Steam Reforming;    Spinel;   

DOI  :  10.1252/jcej.08we192

来源: Maruzen Company Ltd

【 摘 要 】

References(29)Cited-By(7)An anodic alumina supported 17.9 wt% Ni catalyst shows an excellent catalytic performance during steam reforming of methane at 700°C under W/F = 6.33 × 10–3 g-cat·h/L, even when compared with some commercial Ni and Ru reforming catalysts. This is considered to be the result of the existence of an interfacial NiAl2O4 layer, which could anchor the top metallic nickel particles to prevent them from reacting with the alumina support and sintering, thereby, effectively suppressing carbon deposition. Nevertheless, for the industrialization of anodic nickel catalysts, some effort should be made to alleviate the deterioration of anodic supports, because when subjected to a higher W/F as 1.27 × 10–3 g-cat·h/L, the catalyst shows irreversible deactivation, and little improvement is seen by increasing nickel spinel content and metal loading or modifying the impregnation solution pH.

【 授权许可】

Unknown