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

Minjun Cha; Kyuchul Shin; Juneyoung Kim; Daejun Chang; Yutaek Seo; Huen Lee; Seong Pil Kang

doi:10.1016/j.ces.2013.05.060

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

Minjun Cha, Kyuchul Shin, Juneyoung Kim, Daejun Chang, Yutaek Seo, Huen Lee, Seong Pil Kang

Research output: Contribution to journal › Article › peer-review

157 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	184-190
Number of pages	7
Journal	Chemical Engineering Science
Volume	99
DOIs	https://doi.org/10.1016/j.ces.2013.05.060
State	Published - 9 Aug 2013

Keywords

Gas hydrates
Hydrate equilibrium
Kinetic hydrate inhibition
Mono-ethylene glycol

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title = "Thermodynamic and kinetic hydrate inhibition performance of aqueous ethylene glycol solutions for natural gas",

abstract = "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.",

keywords = "Gas hydrates, Hydrate equilibrium, Kinetic hydrate inhibition, Mono-ethylene glycol",

author = "Minjun Cha and Kyuchul Shin and Juneyoung Kim and Daejun Chang and Yutaek Seo and Huen Lee and Kang, \{Seong Pil\}",

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doi = "10.1016/j.ces.2013.05.060",

language = "English",

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journal = "Chemical Engineering Science",

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TY - JOUR

T1 - Thermodynamic and kinetic hydrate inhibition performance of aqueous ethylene glycol solutions for natural gas

AU - Cha, Minjun

AU - Shin, Kyuchul

AU - Kim, Juneyoung

AU - Chang, Daejun

AU - Seo, Yutaek

AU - Lee, Huen

AU - Kang, Seong Pil

PY - 2013/8/9

Y1 - 2013/8/9

N2 - 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.

AB - 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.

KW - Gas hydrates

KW - Hydrate equilibrium

KW - Kinetic hydrate inhibition

KW - Mono-ethylene glycol

UR - https://www.scopus.com/pages/publications/84879539493

U2 - 10.1016/j.ces.2013.05.060

DO - 10.1016/j.ces.2013.05.060

M3 - Article

AN - SCOPUS:84879539493

SN - 0009-2509

VL - 99

SP - 184

EP - 190

JO - Chemical Engineering Science

JF - Chemical Engineering Science

ER -

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

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Keywords

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