| 摘要 |
PURPOSE: To supply reaction heat by combustion of CH4 and utilize all of CO2 and H2 O of combustion reaction product so as to produce H2 and CO by carrying out catalytic reaction of CH4 with O2 in the presence of a specific catalyst. CONSTITUTION: Al2 O3 is applied to the surface of a nonwoven fabric-like carrier made of ceramics and having proper porosity and Rh is supported thereon and then Pt is supported and further, Ni and CeO2 are simultaneously supported to afford a Rh-modified (Ni-CeO2 )-Pt catalyst having compositions whose weight ratio of Rh:Ni:CeO2 :Pt is (0.05-0.5):(3.0-10.0):(2.0-8.0):(0.3-5.0). The catalyst is vertically packed into a quartz pipe in a heatable reacting furnace. A raw material gas mixture of CH4 and O2 is as necessary diluted with N2 and the gas is fed to the catalyst in the quartz pipe under high flow rate condition from the heated pipe and catalytic reaction of CH4 with O2 is carried out while keeping catalyst temperature to 350-800 deg.C. |
