Antiagglomerants Affect Gas Hydrate Growth

被引：47

作者：

Bui, Tai ^{[1
]}

Sicard, Francois ^{[1
]}

Monteiro, Deepak ^{[2
]}

Lan, Qiang ^{[2
]}

Ceglio, Mark ^{[2
]}

Burress, Charlotte ^{[2
]}

Striolo, Alberto ^{[1
]}

机构：

[1] UCL, Dept Chem Engn, London WC1 E7JE, England

[2] Halliburton, Houston, TX 77032 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2018年 / 9卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

CARBON-DIOXIDE; FILM GROWTH; SURFACTANTS; INTERFACES; METHANE; PERFORMANCE; INHIBITOR; STORAGE; FORCES; WATER;

D O I：

10.1021/acs.jpclett.8b01180

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In gas clathrate hydrates, inclusion gas molecules stabilize crystalline water structures. In addition to being fundamentally interesting, gas hydrates attract significant practical attention because of their possible application in various high-tech technologies. However, gas hydrates pose health, safety, and environmental risks when they form within oil and gas pipelines, as well as within hydrocarbon-producing and treatment facilities. Among available strategies to control and sometimes prevent hydrate plug formation is the use of surface-active low-molecular-weight compounds, known as antiagglomerants (AAs). AAs prevent the agglomeration of small hydrate particles into large plugs. It is not clear whether AAs promote or frustrate hydrate growth. We present two molecular mechanisms by which AAs promote and frustrate, respectively, hydrate growth. Our results could lead to innovative methodologies for managing hydrates in high-tech applications, as well as for securing the safety of oil and gas operations.

引用

页码：3491 / 3496

页数：11

共 35 条

[1] Interfacial phenomena in gas hydrate systems [J].