摘要
采用Pt-SDB疏水催化剂与亲水填料按1:4混装进行氘从气相到液相的催化交换实验,研究影响传质单元数及氘转化率的因素.结果表明:为获得较大的传质单元数,需选择合适的操作温度及交换气流速;液体流量增加,转化率提高,但液体流量达到一定程度时,氘转化率几乎不再变化;催化柱长度对氘转化率有较大影响,交换气流速2 m3/h、液体流量1～2 kg/h、45℃时,4 m柱长下的氘转化率达到90%.
The experimental studies on hydrogen isotopic deuterium from gas to liquid phase were completed by mixed ratio 1:4 of Pt-SDB hydrophobia catalyst and hydrophillic packing. The influencing factors on number of transfer units (NTU) and transformation efficiencies of deuterium were researched. The results show that preferable NTU can be obtained by choosing suitable operational temperature and flux of exchange gas. The transformation rate increases with increasing liquid flux, but it cannot obviously be improved when liquid flux attains some level. The length of catalytic column has an obvious influence on transformation rate and 90% of transformation rate is obtained by 4 m column length at gas flux with 2 m3/h, liquid flux with 1-2 kg/h and 45°C.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2005年第1期49-52,共4页
Atomic Energy Science and Technology
