| 用于LPCE的有序床催化剂催化活性研究 |
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| 引用本文： | 钟正坤,傅中华,王昌斌.用于LPCE的有序床催化剂催化活性研究[J].核化学与放射化学,2015,37(6):425-428. |
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| 作者姓名： | 钟正坤 傅中华 王昌斌 |
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| 作者单位： | 中国工程物理研究院 核物理与化学研究所，四川 绵阳621900 |
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| 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H_2(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1.12m~3(STP)/(s·m~3)(50mol/(m~3·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。
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| 关 键 词： | 氢同位素交换 Pt/C/PTFE催化剂 有序床 催化活性 |
Catalytic Activity of Ordered-Bed Catalyst for LPCE |
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| ZHONG Zheng-kun,FU Zhong-hua,WANG Chang-bin.Catalytic Activity of Ordered-Bed Catalyst for LPCE[J].Journal of Nuclear and Radiochemistry,2015,37(6):425-428. |
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| Authors: | ZHONG Zheng-kun FU Zhong-hua WANG Chang-bin |
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| Affiliation: | China Academy of Engineering Physics, P. O. Box 919(216), Mianyang 621900, China |
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| 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 Kya values for two kinds of the Pt/C/PTFE ordered-bed catalysts tested are more than 1.12 m3 (STP)/(s?m3) (50 mol/(m3?s)). Flooding mode was not observed when gas flow rate is equivalent to linear velocities of 1.0 m/s and the mole gas to liquid rate ratio is 1. |
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| Keywords: | hydrogen isotopic exchange reaction Pt/C/PTFE catalyst ordered-bed catalytic activity |
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