期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 43, 期 26, 页码 11731-11744出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.11.140
关键词
Structured catalyst; Platinum/rhodium/nickel; Solution combustion synthesis; Mechanical strength; Durability
资金
- Italian Ministry of Education, University and Research (MIUR, Progetti di Ricerca Scientifica di Rilevante Interesse Nazionale) [2010XFT2BB]
In this study, the syngas production by steam reforming (SR) and oxy-steam reforming (OSR) of clean biogas over cordierite monoliths (400 cpsi) lined with Ni, Rh, or Pt on CeO2 catalyst was deeply investigated. Structured catalysts were prepared by using an alternative method to traditional washcoating based on the combination of the solution combustion synthesis (SCS) with the wetness impregnation (WI) technique. TEM and SEM analysis were used to study the morphology of the catalytic layer and to determine its thickness, while the quality of the coating in terms of adhesion on the monolith was evaluated by ultrasonic treatment in isopropyl alcohol solution. The performance and the stability of the structured catalysts were investigated at different process parameters, namely temperature (700-900 degrees C), steam-to-carbon (S/C = 1-5) and oxygen-to-carbon (O/C = 0.1-0.2) molar ratios, and weight space velocity (WSV = 30,000-250,000 NmL g(cat)(-1) h(-1)). The SCS + WI deposition method allowed obtaining a uniform and thin coated layer with high mechanical strength. The following order of activity was exploited: Rh > Pt > Ni for biogas SR and Rh > Pt = Ni for biogas OSR. The Rh-based catalyst exhibited higher activity and long-lasting stability towards biogas SR and OSR reactions for syngas production. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据