加温加压条件下气液固三相鼓泡塔体积传质系数的测定

气液固三相鼓泡塔反应器被广泛地应用于化工、石油化工、煤化工、化工冶金、环境工程等领域,如石油馏分的加氢、煤的脱硫与脱氮、对二甲苯氧化、费托合成、甲醇合成、二甲醚合成以及含有机物废水的湿式氧化等工业过程[1.2].

Experimental study on volumetric gas-liquid mass transfer coefficients in slurry bubble columns under elevated pressure and temperature

Volumetric gas - liquid mass transfer coefficients were investigated in slurry bubble columns under elevated pressure and elevated temperature using a dynamic absorption method. The effects of system temperature, pressure, superficial gas velocity, concentration of solid on the volumetric mass transfer coefficients were discussed. The experimental results show that the system pressure, superficial gas velocity and concentration of solid are major factors affecting the mass transfer. The mass transfer coefficient increases with the increase of system pressure, temperature and superficial gas velocity, and decreases with the increase of solid concentration. Based on the experimental data, a correlation for the volumetric gas -liquid mass transfer coefficient of H2, CO, CO2 is obtained.