Experimental Study on Hydrogen Isotopic Deuterium and Tritium From Gas Phase to Liquid Phase by Hydrogen-Water Exchange
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摘要: 采用Pt-SDB疏水催化剂和亲水填料混装进行含氘、氚氢气与水的液相催化交换实验，研究反应温度、气体流量和液体流量对D、T转化率以及H-D、H-T的总传质系数Kya的影响。研究结果表明：在相同操作条件下，T的转化率η(H-T)比D的转化率η(H-T)高，H-T的总传质系数比H-D的高；从D、T转化率随气体流量和液体流量的变化趋势可知，气体流量对D、T转化率的影响较大；选择合适的反应温度即可获得较佳的转化率和总传质系数。在实际工艺中，反应温度选为45 ℃较适宜。Abstract: The hydrogen isotopic deuterium and tritium from gas phase to liquid phase by hydrogen-water exchange were experimentally researched with mixture of hydrophobic catalyst and hydrophillic packing in catalytic bed. The transformation rate and volume transfer coefficient of D and T were determined at various temperature, gas and liquid flow rates．The results show that the transformation rate η(H-T) of T is higher than η(H-D) of D, and the volume transfer coefficient Kya(H-T) of H-T is higher than Kya(H-T) of H-D, the preferable transformation rate and volume transfer coefficient can be obtained by choosing suitable operational temperature. 45 ℃ is the suitable operational temperature in practical technique．
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