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Component analysis of enriched oxygen gas from a small-size PSA medical oxygen generator

机译：小型PSA医用制氧机中富氧气体的成分分析

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This paper studied on the component of enriched oxygen gas from a self-developed small-size PSA medical oxygen generator. Through gas chromatography each concentration group of oxygen, nitrogen, argon, carbon dioxide and total hydrocarbon with different outlet flow was investigated, and the fluctuation of each group during continuous operation of 48 h was also measured. The result showed that the key factor to constrain the increase of oxygen purity was micro argon in the air, which can reach to 5.1101% in oxygen-rich gas and didn't change with the variation of zeolite utilization or the increase of operating time, indicating the invalid of current molecular sieve materials. Another major gas nitrogen declined significantly with the improvement of the molecular sieve utilization, which was only account for 0.4643%. Other trace amount of impurity gas such as total hydrocarbon and carbon dioxide were only in ppm level.
机译：本文研究了自行开发的小型PSA医用制氧机中富氧气体的成分。通过气相色谱法研究了不同出口流量下的氧气，氮气，氩气，二氧化碳和总烃的每个浓度组，并测量了连续运行48 h时各组的波动。结果表明，限制氧气纯度增加的关键因素是空气中的微氩，其在富氧气体中可达到5.1101％，并且不会随沸石利用率的变化或操作时间的增加而变化，表示当前分子筛材料无效。随着分子筛利用率的提高，另一种主要的气体氮含量显着下降，仅为0.4643％。其他痕量的杂质气体（例如总烃和二氧化碳）仅为ppm级。

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