利用氨吸收电厂烟道气中的CO_2及对大气减排CO_2的分析

Analysis on the absorption of CO_2 in flue gas from powerplant with ammonia for CO_2 sequestration

对以氨吸收电厂烟道气中CO2生产碳酸氢铵的技术可行性进行了分析,并从氨的来源、各种合成氨工艺的能源消耗、附带CO2排放情况和碳酸氢铵在土壤中被植物吸收情况等方面进行了综合分析。结果表明,由于以天然气为原料合成氨生产过程中附带CO2排放相对较少,用于吸收电厂烟道气中CO2生产碳酸氢铵肥料,在碳酸氢铵能够有效被植物吸收的前提下能够达到减排CO2的综合效果。

The analysis was given on the absorption of CO2 in flue gas with ammonia to produce ammonium bicarbonate, including the source of ammonia, the supplementary CO2 discharge during the production of ammonia, and the absorption of ammonium bicarbonate by plants in the soil. The results show that the drop of CO2 discharge may be realized if the ammonia is produced from natural gas because of less supplementary discharge of CO2 during production process, and ammonium bicarbonate may be effectively absorbed by plants.