Effect of montmorillonite on hydrate-based methane separation from mine gas

被引：12

作者：

Zhang Qiang ^{[1
,2
,3
]}

Wu Qiang ^{[2
,3
]}

Zhang Hui ^{[1
]}

Zhang Bao-yong ^{[2
,3
]}

Xia Ting ^{[3
]}

机构：

[1] Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150080, Heilongjiang, Peoples R China

[2] Heilongjiang Univ Sci & Technol, Dept Safety Engn, Harbin 150022, Heilongjiang, Peoples R China

[3] Natl Cent Lab Hydrocarbon Gas Transportat Pipelin, Harbin 150022, Heilongjiang, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2018年 / 25卷 / 01期

基金：

中国国家自然科学基金;

关键词：

mine gas; hydrate; montmorillonite; separation effect; partition coefficient; separation factor; recovery rate; selection factor; CLATHRATE HYDRATE; GROWTH; SURFACTANT; COMPLEXES; KINETICS; CLAY;

D O I：

10.1007/s11771-018-3715-x

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Three types of mine gas samples were used in the solutions of tetrahydrofuran (THF), sodium dodecyl sulfate (SDS) and THF-SDS with/without MMT respectively to investigate the effect of montmorillonite (MMT) on separation characteristics of methane recovered from mine gas based on hydrate method. The partition coefficient, separation factor and recovery rate were used to evaluate the effects of MMT, and the selection factor was primarily proposed to define the selectivity of mine gas hydrate in the relative target gases. The experimental results indicate that MMT could improve the following factors including hydration separation factor, the selection factor, the partition coefficient, and the recovery rate. Furthermore, the effect of SDS on the function of MMT is analyzed in the process of hydration separation. Finally, due to the results of the experiment, it is concluded that MMT hydration mechanism explores the effect of MMT enrichment methane from mine gas.

引用

页码：38 / 50

页数：13

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