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空分装置中氧、氩混合气体的测定专用毛细管柱
空分装置中氧、氩混合气体的测定专用毛细管柱 详细信息：

空分装置在运行过程中需要准确分析出过冷器纯氮气、下塔压力氮气、上塔工艺氧气、液空纯度等工艺段中的各组分含量，这其中主要是含有氧、氩成分的混合气体。这对于及时掌握工艺设备生产状况、清楚了解物流的平衡参数，从而使装置安全平稳正常运行具有极其重要的意义。尽管氧氩混合气体的分析方法种类较多，而且根据待测组分含量的大小及杂质种类而选用不同的分析方法，一般可分为直接测定法和间接测定法。直接测定法为直接测定出氧气的含量；间接测定法为测定氧气中氩等组分的含量，再利用差减法计算出氧的含量。但是现有的这些分析方法均不够理想。对于含有氧氩组分混合气体的分析一般采取气相色谱法，以分子筛类吸附剂或高分子固定相为分离柱。但是由于氧氩极难分离，采用低温柱或增加柱长等方式分离氧氩也存在灵敏度低等一些问题。

浩瀚色谱（山东）应用技术开发有限公司研究专用毛细管柱在气相色谱法分析氧氩混合气体时其能与氧气发生反应从而达到的目的，并且建立气相色谱法分析含氧氩混合气体中氩组分含量的分析方法。

名称：专用毛细管柱
规格：30m
应用：氧/氩的分离



空分装置中氧、氩混合气体的测定专用毛细管柱   测试谱图：




Special capillary column for determination of oxygen and argon mixed gas in air separation plant
Dedicated capillary column for the determination of oxygen and argon mixed gas in an air separation unit Details:

During the operation of the air separation unit, it is necessary to accurately analyze the content of each component in the process section of the subcooler pure nitrogen, lower column pressure nitrogen, upper column process oxygen, and liquid air purity, among which are mainly oxygen and argon components. mixed composition. This is of great significance for timely grasp of the production status of process equipment and a clear understanding of the balance parameters of logistics, so as to ensure the safe, stable and normal operation of the device. Although there are many types of analysis methods for oxygen and argon mixed gases, and different analysis methods are selected according to the content of the components to be measured and the types of impurities, they can generally be divided into direct measurement methods and indirect measurement methods. Direct measurement method is to directly measure the content of oxygen; indirect measurement method is to measure the content of argon and other components in oxygen, and then use the subtraction method to calculate the oxygen content. However, these existing analysis methods are not ideal. For the analysis of mixed gases containing oxygen and argon components, gas chromatography is generally adopted, with molecular sieve adsorbents or polymer stationary phases as separation columns. However, because oxygen and argon are extremely difficult to separate, the use of low-temperature columns or increasing column length to separate oxygen and argon also has some problems such as low sensitivity.

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. researched a special capillary column that can react with oxygen to achieve high efficiency when analyzing oxygen-argon mixed gas by gas chromatography, and established gas chromatography to analyze the argon group in oxygen-containing argon mixed gas. Analysis method of sub-content.

Name: Dedicated capillary column
Specification: 30m
Application: separation of oxygen/argon



Dedicated capillary column for the determination of oxygen and argon mixed gas in an air separation unit Test spectrum: 


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