抄録
We tested the use of Ba2TiO4 to remove CO2 from steam reforming gas of CH4 and thereby increase the concentration of H2 in the gas. The results of passing reforming gas through a reactor filled with a CO2 absorbent based on Li4SiO4 ceramics at 600 to 700°C demonstrated that the concentrations of CO2 and CO were reduced, while the H2 concentration was increased to about 95%, by the progression of the water shift reaction. At a temperature of 650°C or less, or a space velocity of 250 h–1 or less, the use of a shift reactor might not be necessary after the reforming because the CO concentration was less than 2000 ppm.
