论文部分内容阅读
以管径为900μm的圆形微通道反应器内2-乙基四氢蒽氢醌(THEAQH2)的氧化反应为研究对象,研究了反应过程中气液两相的流动形态,考察了反应温度、反应压力、液体流速ULS、气液比rAS等因素对THEAQH2氧化反应的影响。研究表明,圆形微通道反应器内进行THEAQH2的氧化反应时可得到较高的气液两相接触比表面积;氧化反应随温度升高、压力增大和液体流速ULS的增加而显著加快;THEAQH2的氧化反应在圆形微通道反应器内进行可得到较高的过氧化氢时空收率YSTY(Space-Time Yield),在温度50℃、压力0.29 MPa、液体流速0.052 m/s时,YSTY可达1 790 kg/(m3.h),高出常规反应器1～2个数量级。
The oxidation reaction of 2-ethyltetrahydroanthraquinone (THEAQH2) in a circular microchannel reactor with a diameter of 900 μm was investigated. The gas-liquid two-phase flow pattern was investigated. The effects of reaction temperature, Reaction pressure, liquid flow rate ULS, gas-liquid ratio rAS and other factors on the oxidation of THEAQH2. The results show that the BET surface area of gas-liquid two-phase can be obtained when THEAQH2 is oxidized in a circular microchannel reactor. The oxidation reaction accelerates remarkably with the increase of temperature and pressure and the increase of liquid flow rate ULS. THEAQH2 YSTY (Space-Time Yield) was obtained when the oxidation reaction was carried out in a circular microchannel reactor at a temperature of 50 ° C, a pressure of 0.29 MPa and a liquid flow rate of 0.052 m / s 1 790 kg / (m3.h), higher than the conventional reactor 1 to 2 orders of magnitude.