4 mm Pt-SDB大粒径催化剂氢-水同位素交换工艺研究  

Process on Liquid Catalytic Isotopic Exchange of H_2-H_2O with 4 mm Pt-SDB Catalyst

作　　者：尹玉国[1] 黄登高[1] 张丽[1] 窦勤成[1] 吴栋[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《广东化工》2017年第17期76-77,71,共3页Guangdong Chemical Industry

摘　　要：液相催化交换是氢-水同位素交换工艺的重要技术。本工作采用自行研制的大粒径4 mm柱型Pt-SDB催化剂与4 mm Dixon填料,开展了氢-水交换工艺实验研究。研究结果表明,在填料与催化剂体积填装比为1∶1时,等板高度最低,氢-水交换分离效果最好;在50℃到70℃之间,随着催化交换反应温度升高,等板高度降低,当温度大于70℃时,等板高度变化不大,最优反应温度为70℃;随着气液比的增加,等板高度增大,气体流速比改变液体喷淋密度对等板高度的影响大。Liquid phase catalytic exchange is an important technology of H2-H20 isotopic exchange process. The H2-H20 exchange experiment was studied by self-developed 4 mm Pt-SDB as hydrophobic catalyst and 4mm Dixon gauze rings. The results indicate that the packing and catalyst filling volume ratio was 1： 1. Between 50 ℃ and 80 ℃, the optimal reaction temperature is 70 ℃. The lowest height equivalent of theoretical plate （HETP） and exchange separation effect is the best. When the gas-liquid ratio increases, HETP increases as the gas flow rate ratio change the spray density and the influence of peer plate height.

关 键 词：氢-水交换 Pt-SDB催化剂 氢同位素 Dixon填料 HETP 

分 类 号：TQ914.1[化学工程]