气相色谱在线分析变压吸附法制纯氢中的总碳  

Analysis by Gas Chromatography of Total Carbon in Pure Hydrogen from PSA

作　　者：杜进祥[1] 王凤贵[2] 刘正启[2] 向东 

机构地区：[1]化学工业出版社,北京100029 [2]北京化工四厂中心化验室,北京102400 [3]北京东方绿原科技发展有限公司,北京100101

出　　处：《石油化工》2002年第7期566-568,共3页Petrochemical Technology

摘　　要：利用带镍加氢转化炉的气相色谱仪 ,在线分析变压吸附法制纯氢中的总碳。该法用变压吸附法制的纯氢作燃气 ,在检测器前端将氢气中的CO和CO2 转化为CH4,然后用氢火焰离子化检测器检测 ,直接以检测器的信号 (mV)进行定量。当氢气中总碳体积分数在 1 9～ 5 0 0 μl/L时 ,FID信号值与总碳体积分数有良好的线性关系。方法回收率为 99 90 %～ 10 1 9%,相对标准偏差 <1%。An on-line analytical method of gas chromatography for determination of total carbon in pure hydrogen produced by PSA was studied.The method utilized the pure hydrogen produced by PSA as fuel gas,and transforms carbon monoxide?carbon dioxide into methane which were then detected with a FID,and directly, quantified by the signal of FID.Regression equations revealed a linear relationship between the concentration of total carbon of pure hydrogen and the signal detected by FID in the range of 1.9～50.0 μl/L. The results showed a recovery of 98.90%～101.9% and a relative standard deviation of below 1%.

关 键 词：气相色谱 在线分析 变压吸附法 纯氢 总碳 制备 

分 类 号：TQ116.2[化学工程—无机化工]