Ms5Å分子筛填充柱

名称：填充柱

固定相：分子筛

规格：4m*3mm，60-80目

型号：Ms5Å

应用：氢气，O2, N2 CH4，CO的分离


5A分子筛表现出了高结晶度、较完整的晶型和大小均匀、规整的晶粒,并且5A分子筛对氮气的吸附解吸速率优于甲烷,更适合于柱式分离法,同时5A分子筛价格低廉,更具有经济效益。其次,使用氦气作为载气,通过改变柱分离过程中的条件参数(如定量环体积、填充柱温度和气体浓度),对低浓度瓦斯混合气体在5A分子筛填充柱中的分离情况进行实验及过程机理分析。实验结果表明,在只改变定量环体积,其他条件不变的情况下,随体积的不断增大,氮气和甲烷的分离界限趋向于不明显,甲烷的谱峰完全被氮气峰盖住,可以得到在此条件下欲使气体浓度加倍单次能够分离的大气体量。同样,通过改变温度,得到优化的提纯分离条件。此外,实验还记录了CH_4/He和He/N_2的色谱图,拟合两个色谱图里的曲线与CH_4/N_2实际测得的曲线结果相差不大。

浩瀚色谱（山东）应用技术开发有限公司,利用气相色谱吸附分离分析的原理,设计了一种用于极低浓度抽采瓦斯的甲烷吸附浓缩系统,为工业上矿井低浓度抽采瓦斯的浓缩提纯提供了一种思路。


Ms5Å分子筛填充柱 测试谱图：




Ms5Å molecular sieve packed column
Ms5Å molecular sieve packed column Details:

Name: Packed column

Stationary phase: molecular sieve

Specification: 4m*3mm, 60-80 mesh

Model: Ms5Å

Application: separation of hydrogen, O2, N2, CH4, CO


5A molecular sieve exhibits high crystallinity, relatively complete crystal form and uniform and regular crystal grains, and the adsorption and desorption rate of 5A molecular sieve for nitrogen is better than methane, which is more suitable for column separation method. At the same time, 5A molecular sieve is cheap. More economical. Secondly, using helium gas as the carrier gas, by changing the condition parameters in the column separation process (such as the volume of the quantitative loop, the temperature of the packed column, and the gas concentration), the separation of the low-concentration gas mixture in the 5A molecular sieve packed column was tested and tested. Process mechanism analysis. The experimental results show that when only the volume of the quantitative loop is changed and other conditions remain unchanged, with the continuous increase of the volume, the separation limit of nitrogen and methane tends to be insignificant, until the peak of methane is completely covered by the nitrogen peak, it can be Obtain the maximum amount of gas that can be separated in a single time to double the gas concentration under this condition. Similarly, by changing the temperature, the optimal purification and separation conditions can be obtained. In addition, the experiment also recorded the chromatograms of CH_4/He and He/N_2, and the curves in the two chromatograms are not much different from the actual measured curves of CH_4/N_2.

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd., using the principle of gas chromatography adsorption separation and analysis, designed a methane adsorption and concentration system for extremely low concentration gas extraction, which is used for the concentration and purification of low concentration gas extraction in industrial mines. Provides an idea.


Ms5Å molecular sieve packed column test spectrum: