【作者】 夏修龙；

【Author】 XIA Xiulong (China Academy of Engineering Physics, P .O .Box 919-214, Mianyang 621900, China)

【机构】 中国工程物理研究院核物理与化学研究所；

【摘要】 在氢同位素分离中,通常采用多柱级联工艺实现微量氘或氚的浓集。提出了双柱级联分离H2/HD的设计工艺和操作模式,获得了两根精馏柱的分离行为。在合适的操作模式下,双柱级联将HD浓缩了20×20倍,表明采用多柱级联可以非常有效的浓缩微量组分。进一步研究了压力和回流比等因素对分离性能的影响。压力从0.6atm增加到1.5atm,脱氘率从99.79%降到99.44%。回流比从3增长到5,脱氘率从99.67%升到99.81%更多还原

【Abstract】 Multi-column interlinking is an effective separation method adopted for enrichment of trace deuterium and tritium. Conceptual design and proper operating mode were proposed for separation of H2/HD by cryogenic distillation with two interlinking columns,and separation performance were obtained.Enrichment of 20×20 achieved with proper operating mode indicating multi-column interlinking is specially suitable for trace composition enrichment.Pressure and reflux ratio’ effect on separation performance were also investigated.As pressure increased from 0.6atm to1.5atm,deuterium stripping efficiency dropped from 99.79% to 99.44%;As reflux ratio increased from 3 to 5, deuterium stripping efficiency increased from 99.67%升到 99.81%.更多还原