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.
出处
《广东化工》
CAS
2017年第17期76-77,71,共3页
Guangdong Chemical Industry
