| 摘要 |
PURPOSE:To fix carbon dioxide without affecting environment by using quartzite to fix the carbon dioxide separated from a waste combustion gas as a carbon dioxide clathracyl. CONSTITUTION:Carbon dioxide 1, sodium silicate 5 and hydrochloric acid 4 are charged into a carbon dioxide clathracyl producing device 13, and an agitator 14 is driven by a motor 15. The device is kept at <= about 200kg/cm<2> pressure and <= about 200 deg.C, and a carbon dioxide clathracyl 3 and water 9 are formed by the reaction in the device. The mixture is separated by a solid-liq. separator 19 into the carbon dioxide clathracyl 3, salt and water 9. Meanwhile, quartzite 2 is charged into a sodium silicate producing device 16 along with sodium hydroxide 6 to produce sodium silicate 5 and water, and the sodium silicate 5 is introduced into the device 13. Further, brine 10 is electrolyzed by a brine electrolyzer 17 to form gaseous chlorine, gaseous hydrogen 9 and sodium hydoxide 6, and the sodium hydroxide 6 is supplied to the device 16. Besides, gaseous chlorine and gaseous hydrogen 7 are converted into hydrochloric acid 4 which is fed to the device 13. |
