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使用 1L搅拌釜 ,在温度 80～ 1 60℃ ,压力 0 5～ 5 0MPa范围内 ,实测了H2 和CO在间二甲苯中的溶解度和体积传质系数。结果表明 ,两者均随温度和压力的升高而增大。实验结果与基于正规溶液理论Prausnitz-Shair法计算的气体溶解度比较相符。在相同温度、压力条件下 ,CO的溶解度和体积传质系数比H2 大。相同温度、压力下不同液相介质中H2 和CO的体积传质系数排序如下 :(kLa) MEF>(kLa) MeOH>(kLa) m -xylene>(kLa) paraffin。此外 ,在实验范围内获得了亨利系数 ,偏摩尔体积和溶解热等数据。
The solubility and mass transfer coefficient of H2 and CO in meta-xylene were measured using a 1-L stirred tank at a temperature of 80-160 ° C and a pressure of 0-5-500 MPa. The results show that both increase with temperature and pressure. The experimental results are in good agreement with the gas solubility calculations based on the Prausnitz-Shair method for normal solution theory. Under the same temperature and pressure conditions, the solubility and mass transfer coefficient of CO are greater than H2. The volumetric mass transfer coefficients of H2 and CO in different liquid media under the same temperature and pressure are listed as follows: (kLa) MEF> (kLa) MeOH> (kLa) m-xylene> (kLa) paraffin. In addition, data such as Henry’s coefficient, partial molar volume and heat of solution were obtained within the experimental range.