Thermodynamic and kinetic hydrate inhibition performance of aqueous ethylene glycol solutions for natural gas

被引：137

作者：

Cha, Minjun ^{[1
,2
]}

Shin, Kyuchul ^{[3
]}

Kim, Juneyoung ^{[3
]}

Chang, Daejun ^{[3
]}

Seo, Yutaek ^{[3
]}

Lee, Huen ^{[1
,2
]}

Kang, Seong-Pil ^{[4
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Program BK21, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Grad Sch EEWS, Taejon 305701, South Korea

[3] Korea Adv Inst Sci & Technol, Ocean Syst Engn Div, Taejon 305701, South Korea

[4] Korea Inst Energy Res, Climate Change Res Div, Taejon 305343, South Korea

来源：

CHEMICAL ENGINEERING SCIENCE | 2013年 / 99卷

基金：

新加坡国家研究基金会;

关键词：

Gas hydrates; Kinetic hydrate inhibition; Hydrate equilibrium; Mono-ethylene glycol; PRE-COMBUSTION CAPTURE; METHANE HYDRATE; CARBON-DIOXIDE; CO2;

D O I：

10.1016/j.ces.2013.05.060

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Hydrate formation characteristics have been investigated with synthetic natural gas at different mono-ethylene glycol (MEG) concentrations by measuring hydrate onset time and subcooling temperature. MEG is well known thermodynamic hydrate inhibitor (THI), however there have been little works studying its effect on hydrate formation kinetics. In this paper, we report the hydrate onset is delayed and crystal growth is suppressed significantly at the MEG concentration of 30.0 wt%. We also investigate the hydrate formation in the presence of both MEG and poly-vinyl pyrrolidone (PVP). Hydrate onset time is further delayed due to synergistic inhibition effect of two inhibitors. These results suggest that it might be feasible to incorporate the kinetic inhibition performance of MEG into current hydrate inhibition strategy to manage the hydrate risk. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：184 / 190

页数：7

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