Deactivation mechanism of Ni supported on Mg-Al spinel during autothermal reforming of model biogas
详细信息 查看全文
- 作者：Mathilde Luneau ; Elia Gianotti ; Fré ; dé ; ric C. Meunier ; Claude Mirodatos ; Eric Puzenat ; Yves Schuurman ; Nolven Guilhaume ; Nolven.Guilhaume@ircelyon.univ-lyon1.fr
- 关键词：Biogas ; Autothermal reforming ; Syngas ; Ni catalyst ; Deactivation ; UV&ndash ; vis-DRS
- 刊名：Applied Catalysis B: Environmental
- 出版年：2017
- 出版时间：April 2017
- 年：2017
- 卷：203
- 期：Complete
- 页码：289-299
- 全文大小：2941 K
- 卷排序：203
文摘
The deactivation process of Ni/MgAlOx spinel during ATR of model biogas is assessed. A methane combustion zone creates a hot spot and leads to NiO formation. NiO reacts with the support at high temperature forming inactive NiAl2O4 spinel. The Mg/Al ratio in the support strongly affects the Ni deactivation rate. A dual catalytic bed prevents Ni oxidation and deactivation.