| 摘要 |
PURPOSE:To reduce the energy required for separating and recovering concd. CO by separating the reformed gas obtained by the reaction of hydrocarbons with steam and gaseous CO2 by pressure-swinging adsorptive separation. CONSTITUTION:The hydrocarbons 6 are introduced into a reforming furnace 1 along with a CO2-rich gas 7 as the by product, allowed to react with steam 8 in the presence of a reforming catalyst 3, and reformed to obtain the reformed gas 9 contg. H2, CO2, CO, CH4, etc. The reformed gas 9 is then introduced into a pressure-swinging adsorptive separator(PSA) device 4, and separated into the gas 7 and a gaseous mixture of CO and H2. The gas 7 is returned to the furnace 1, and the gaseous mixture is separated into high-purity gaseous CO 10 and an H2-rich gas 11. The gaseous CO 10 is recovered as a product, and a part of the gas 11 is supplied to the furnace 1 along with the air 12, burned, and used as the heat source necessary for the reforming reaction. The remainder is supplied to a gas-turbine generator 5, and used as the power source. |
