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叙述了用“601”碳分子筛作托卡马克废气排出气的收集、纯化和低温热色谱的进样单元,以5A分子筛柱在液氮(LN2)温度下吸附氕、氘,氚,随后把柱温回升至室温(20℃~30℃),为了提高分离效率、缩短分离时间和分离柱总长度,在两根分离柱间添加了HD、HT等歧化平衡器,经过四根分离柱组成的级联分离柱后氕、氘、氚获得了清晰分离。该装置的单次进样量为5标准升,日处理量为120~180标准升,流程气体总回收率>97%,氘丰度>99.9%时,氘、氚损失量(不计加热300℃活化再生分离柱回收的氘、氚)<5%,除氕效率>98%。
Described is the use of “601” carbon molecular sieve for tokamak exhaust gas collection, purification and low temperature thermochromatography of the sample unit to 5A molecular sieve column at liquid nitrogen (LN2) temperature adsorption, deuterium, tritium, and then the column Temperature rise to room temperature (20 ℃ ~ 30 ℃), in order to improve the separation efficiency, shorten the separation time and the total length of the separation column, added between the two separation columns HD, HT disproportionation balancer, after four separation column level After the separation column column 氕, deuterium, tritium obtained a clear separation. The single injection volume of the device is 5 standard liters, the daily processing capacity is 120-180 standard liters, the total recovery rate of the process gas is> 97% and the deuterium abundance> 99.9%, the deuterium and tritium loss amount 300 ℃ activated regeneration separation column recovered deuterium, tritium) <5%, in addition to 氕 efficiency> 98%.