产品名称：	HH-EDC 乙烯氧化制环氧乙烷原料气中微量二氯乙烷测定专用柱
产品型号：	HH-EDC
品牌：	1356
产品数量：
产品单价：	面议
日期:	2022-07-06

HH-EDC 乙烯氧化制环氧乙烷原料气中微量二氯乙烷测定专用柱的详细资料

乙烯氧化制环氧乙烷原料气中微量二氯乙烷测定专用柱
乙烯氧化制环氧乙烷原料气中微量二氯乙烷测定专用柱 详细信息：

名称：填充柱
固定相：专用
规格：2m*1/8
型号：HH-EDC

柱效高，分离好，无干扰

在Ag/α-Al2O3催化剂作用下,乙烯环氧化生产环氧乙烷,在原料气中添加微量1,2-二氯乙烷可抑制副反应,提高生成环氧乙烷的选择性。使用微反评价装置,模拟工业上环氧乙烷的生产条件,对银催化剂作用下乙烯环氧化制环氧乙烷过程中抑制剂1,2-二氯乙烷的作用机理进行了研究。实验结果表明,1,2-二氯乙烷在银催化剂上200℃时完全分解,在α-Al2O3载体上直到260℃仍不分解;1,2-二氯乙烷分解成吸附态氯改变了银催化剂的表面吸附性能,提高了目的产物的选择性;在乙烯环氧化制环氧乙烷的反应条件下,1,2-二氯乙烷分解是可逆反应。

浩瀚色谱（山东）应用技术开发有限公司采用专用柱测定微量二氯乙烷的分析方法,使该仪器能够对银催化剂实验装置入口反应气中的微量二氯乙烷进行准确的在线定量分析。


乙烯氧化制环氧乙烷原料气中微量二氯乙烷测定专用柱 测试谱图：



Special column for the determination of trace amounts of dichloroethane in feed gas from ethylene oxidation to ethylene oxide
Special column for the determination of trace amounts of dichloroethane in feed gas from ethylene oxidation to ethylene oxide Details:

Name: Packed Column
Stationary Phase: Dedicated
Specifications: 2m*1/8
Model: HH-EDC

High column efficiency, good separation, no interference

Under the action of Ag/α-Al2O3 catalyst, ethylene oxide is produced by epoxidation of ethylene. Adding a small amount of 1,2-dichloroethane to the feed gas can inhibit the side reaction and improve the selectivity of ethylene oxide. Using a micro-reaction evaluation device to simulate the industrial production conditions of ethylene oxide, the mechanism of action of the inhibitor 1,2-dichloroethane in the process of ethylene epoxidation to ethylene oxide under the action of silver catalyst was studied. The experimental results show that 1,2-dichloroethane is completely decomposed on silver catalyst at 200 ℃, and does not decompose on α-Al2O3 support until 260 ℃; 1,2-dichloroethane decomposes into adsorbed chlorine, which changes The surface adsorption performance of silver catalyst improves the selectivity of the target product; under the reaction conditions of ethylene epoxidation to ethylene oxide, the decomposition of 1,2-dichloroethane is a reversible reaction.



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses a special column to determine the analytical method of trace dichloroethane, which enables the instrument to perform accurate online quantitative analysis of trace dichloroethane in the reaction gas at the inlet of the silver catalyst experimental device.


Special column for the determination of trace amounts of dichloroethane in feed gas from ethylene oxidation to ethylene oxide Test spectrum: