【摘要】 通过建立CO2散装填料(玻璃弹簧)吸收系统,以乙醇胺(Monoethanolamine)溶液为吸收剂,考察了MEA浓度、CO2分压和液气吸收比等对模拟烟气中CO2传质过程的影响。研究结果表明:在实验条件下,随着液气比的增大,CO2脱除率不断增大;液气比过大,将降低吸收液利用率,液气比过小,将导致CO2脱除率太低。此外,在试验条件下,对填料塔气相总体积传质系数KGav进行了分析,试验结果为实际燃煤CO2吸收填料塔的设计及优化提供必要的理论支撑。更多还原

【Abstract】 This article mainly investigates the effects of the MEA(Monoethanolamine) concentration,CO2 partial pressure and liquid gas absorption ration in the process of simulated flue gas CO2 Mass Transfer.The study established random packing(glass spring) system which uses MEA as the absorbent.The results show that: under our experimental conditions,with the increase of the liquid-gas ratio,CO2 removal rate is increasing;but we find that if the liquid-gas ratio is too large,the utilization of absorption liquid will be wasted,if the liquid-gas ratio is too small,the removal of CO2 rate is too low.In addition,under the test conditions,we also analyze the total volumetric overall mass transfer coefficient KGav of gas phase in the packed column,the test results will provide necessary theoretical support for design and optimization of the actual coal-fired CO2 absorption packed tower.更多还原