天然氣采出后通過人工注入乙二醇作為水合物抑制劑，以預(yù)防設(shè)備和管道的堵塞。建立可行有效的天然氣中微量乙二醇取樣測定方法，有利于對乙二醇加注量的指導(dǎo)。

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司采用溶劑解吸型硅膠在管輸壓力下富集天然氣中微量的乙二醇，再通過液體解吸后進行氣相色譜分析。在現(xiàn)場取樣體積10 m3、用10 mL解吸液處理的條件下，乙二醇的檢測限可達到0．05 mg／m3。

名稱：毛細管柱
規(guī)格：30m*0.32mm
型號：HH-INNOWAX


天然氣中微量乙二醇的取樣測定 測試譜圖：

Sampling and determination of trace glycol in natural gas
Sampling and determination of trace glycol in natural gas

After natural gas is extracted, ethylene glycol is injected artificially as a hydrate inhibitor to prevent blockage of equipment and pipelines. The establishment of a feasible and effective sampling and determination method of trace glycol in natural gas is beneficial to the guidance of the amount of glycol injection.



Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. uses solvent-desorption silica gel to enrich trace amounts of ethylene glycol in natural gas under pipeline pressure, and then conducts gas chromatographic analysis after liquid desorption. Under the condition of a sampling volume of 10 m3 on site and treatment with 10 mL of desorption solution, the detection limit of ethylene glycol can reach 0.05 mg/m3.



Name: Capillary Column
Specification: 30m*0.32mm
Model: HH-INNOWAX


Sampling and determination of trace glycol in natural gas Test spectrum: