【摘要】 采用气-液逆流方式研究了Pt/C/PTFE有序床疏水催化剂对H₂（g）/HDO（l）体系中同位素交换的催化性能。结果表明:Pt/C/PTFE有序床催化剂不仅具有较高的催化活性和良好的疏水性,而且能够达到很高的气体流速;实验所用的两种Pt/C/PTFE的体积传质系数(K_ya)均达1.12m³（STP）/（s·m³）（50mol/（m³·s））以上,且用水浸泡35d后其催化活性无明显变化;在气液摩尔比为1∶1的条件下,气体空塔线速率达到1.0m/s时,两种填装的有序床Pt/C/PTFE均未发生液泛。更多还原

【Abstract】 The counter-flow method was used to study the catalytic performance of the Pt/C/PTFE ordered-bed catalysts for the isotopic exchange reactions between hydrogen gas and HDO water.The results show that the catalytic activity of Pt/C/PTFE ordered-bed catalysts is very high at high gas flow rate and the Pt/C/PTFE appeared good hydrophobic performance.The Kyavalues for two kinds of the Pt/C/PTFE ordered-bed catalysts tested are more than 1.12m~3(STP)/(s·m~3)(50mol/(m~3·s)).Flooding mode was not observed when gas flow rate is equivalent to linear velocities of 1.0m/s and the mole gas to liquid rate ratio is 1.更多还原