CAJ | 학술논문

系统分析了弱电解质水溶液 NH3-CO2-H2S-H2O 四元体系汽液平衡理论,建立了本体系汽液相平衡计算模型,为炼油厂酸性水储罐小呼吸排放气量的计算提供了依据.并在此基础上,研究了弱电解质溶液中组分浓度、H2S/NH3摩尔比和温度对酸性水溶液NH3-H2S-H2O-空气平衡体系的影响,研究表明弱电解质溶液中组分浓度和H2S/NH3摩尔比的增加以及温度的升高,均能导致体系汽相分压增加,增大酸性气体排放量.
계통분석료약전해질수용액 NH3-CO2-H2S-H2O 사원체계기액평형이론,건립료본체계기액상평형계산모형,위련유엄산성수저관소호흡배방기량적계산제공료의거.병재차기출상,연구료약전해질용액중조분농도、H2S/NH3마이비화온도대산성수용액NH3-H2S-H2O-공기평형체계적영향,연구표명약전해질용액중조분농도화H2S/NH3마이비적증가이급온도적승고,균능도치체계기상분압증가,증대산성기체배방량.
The vapor-liquid equilibrium (VLE) of NH3-CO2-H2S-H2O system was analyzed comprehensively. The calculating model for the vapor-liquid equilibrium was established, which can provide a base for calculating the small breathing emission from sour water tanks in the refinery. Based on the model, effects of concentration of weak electrolyte, H2S/NH3 molar ratio and temperature on the VLE of NH3-H2S-H2O system were investigated. Results indicate that the increase of the concentration of weak electrolyte, H2S/NH3 molar ratio and temperature can all contribute to the increase of the vapor pressure, thus promote the emission of sour gas.