| 用于氢-水同位素交换的Pt-PTFE类憎水催化剂的研制 |
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| 引用本文： | 李俊华,康艺,韩延德,阮皓,窦勤成,胡石林.用于氢-水同位素交换的Pt-PTFE类憎水催化剂的研制[J].核化学与放射化学,2001,23(4):224-229. |
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| 作者姓名： | 李俊华 康艺 韩延德 阮皓 窦勤成 胡石林 |
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| 作者单位： | 0253-9950(2001)04-0224-06 |
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| 摘 要： | 研制了以铂为活性成分，聚四氟乙烯（PTFE）为憎水材料，活性炭、二氧化硅等作载体的憎水催化剂。在滴流床上，进行了氢-水气液逆流氢同位素交换反应，讨论了载体、铂含量及PTEF量对催化剂活性的影响。结果表明，以活性炭为载体，聚四氟乙烯与Pt-C粉的质量比在1-2时，Pt-C-PTFE催化剂的活性高；交换反应的总体积传质系数随反应温度和氢气流量的增加而增大。
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| 关 键 词： | 憎水催化剂 氢同位素 同位素交换 |
| 文章编号： | 0253-9950(2001)04-0224-06 |
| 修稿时间： | 2001年6月5日 |
PREPARATION OF Pt-PTFE HYDROPHOBIC CATALYST FOR HYDROGEN-WATER ISOTOPE EXCHANGE |
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| LI Jun hua,KANG Yi,HAN Yan de,RUAN Hao,DOU Qin cheng,HU Shi lin.PREPARATION OF Pt-PTFE HYDROPHOBIC CATALYST FOR HYDROGEN-WATER ISOTOPE EXCHANGE[J].Journal of Nuclear and Radiochemistry,2001,23(4):224-229. |
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| Authors: | LI Jun hua KANG Yi HAN Yan de RUAN Hao DOU Qin cheng HU Shi lin |
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| Affiliation: | LI Jun hua, KANG Yi, HAN Yan de, RUAN Hao, DOU Qin cheng, HU Shi lin(China Institute of Atomic Energy, P. O. Box 275(53), Beijing 102413, China) |
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| Abstract: | The hydrophobic catalyst used in the hydrogen water isotope exchange is prepared with Pt as the active metal, PTFE as the hydrophobic material, active carbon or silicon dioxide as the support. The isotope catalytic exchange reaction between hydrogen and water is carried out in the trickle bed and the effects of different carriers, mass fraction of Pt and PTFE on the catalytic activity are discussed. The experimental results show that the activity of Pt C PTFE hydrophobic catalyst with the ratio between PTFE and Pt C from 1 to 2 is higher than other kinds of catalysts and the overall volume transfer coefficient is increased with the increase of the hydrogen flow rate and reaction temperature. |
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| Keywords: | hydrophobic catalyst hydrogen isotope H 2 H 2O isotope exchange |
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