名稱：填充柱

固定相：分子篩

規(guī)格：4m*3mm，60-80目

型號：Ms5?

應(yīng)用：氫氣，O2, N2 CH4，CO的分離


5A分子篩表現(xiàn)出了高結(jié)晶度、較完整的晶型和大小均勻、規(guī)整的晶粒,并且5A分子篩對氮氣的吸附解吸速率優(yōu)于甲烷,更適合于柱式分離法,同時5A分子篩價格低廉,更具有經(jīng)濟效益。其次,使用氦氣作為載氣,通過改變柱分離過程中的條件參數(shù)(如定量環(huán)體積、填充柱溫度和氣體濃度),對低濃度瓦斯混合氣體在5A分子篩填充柱中的分離情況進(jìn)行實驗及過程機理分析。實驗結(jié)果表明,在只改變定量環(huán)體積,其他條件不變的情況下,隨體積的不斷增大,氮氣和甲烷的分離界限趨向于不明顯,甲烷的譜峰完全被氮氣峰蓋住,可以得到在此條件下欲使氣體濃度加倍單次能夠分離的大氣體量。同樣,通過改變溫度,得到優(yōu)化的提純分離條件。此外,實驗還記錄了CH_4/He和He/N_2的色譜圖,擬合兩個色譜圖里的曲線與CH_4/N_2實際測得的曲線結(jié)果相差不大。

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司,利用氣相色譜吸附分離分析的原理,設(shè)計了一種用于極低濃度抽采瓦斯的甲烷吸附濃縮系統(tǒng),為工業(yè)上礦井低濃度抽采瓦斯的濃縮提純提供了一種思路。


Ms5?分子篩填充柱 測試譜圖：




Ms5? molecular sieve packed column
Ms5? molecular sieve packed column Details:

Name: Packed column

Stationary phase: molecular sieve

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

Model: Ms5?

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.


Ms5? molecular sieve packed column test spectrum: