Application of Mesoporous SiO2 Carriers in Methane Carbon Dioxide Reforming
The methane and carbon dioxide reforming(DRM)reaction can simultaneously convert two main greenhouse gases into synthetic gas with a molar ratio of H2/CO close to 1.Ni has become the most commonly used catalyst for DRM reactions due to its low cost,high performance,and abundant resource reserves,but its application is limited by the deactivation problem caused by carbon deposition.The properties of the carrier material have a significant impact on the comprehensive performance of Ni based catalysts in DRM.Mesoporous SiO2 nanomaterials have ordered and controllable pore structure,high specific surface area,and stable physicochemical properties,which have broad application prospects in the catalytic field,and have become a research hotspot in this field in recent years.In this article,application of mesoporous SiO2 materials such as MCM-41 and SBA-15 in DRM reactions was reviewed Many researchers have used various methods to improve the temperature controlled preparation or second metal doping of catalysts based on mesoporous SiO2 as a carrier,in order to have better catalytic activity.The improvement of mesoporous SiO2 pore structure and the development of large-scale production methods are still important research directions in the future.
NETL
NSTL
万方数据
