Phase Equilibria and Formation Behaviors of Methane Hydrate with Ethylene Glycol and Salts

被引：2

作者：

Kim, Dong Hyun ^{[1
]}

Park, Ki Hun ^{[1
]}

Cha, Minjun ^{[1
]}

机构：

[1] Kangwon Natl Univ, Dept Energy & Resources Engn, 1 Kangwondaehak Gil, Chuncheon Si 24341, Gangwon Do, South Korea

来源：

KOREAN CHEMICAL ENGINEERING RESEARCH | 2020年 / 58卷 / 04期

关键词：

Methane hydrate; thermodynamic inhibitor; ethylene glycol; salt; phase equilibria; formation behaviors; SUPPRESSION TEMPERATURE; UNIVERSAL CORRELATION; CARBON-DIOXIDE; SYSTEMS; DISSOCIATION; KINETICS; NACL; KCL;

D O I：

10.9713/kcer.2020.58.4.635

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, phase equilibria and formation behaviors of methane hydrate containing mono-ethylene glycol (MEG) and salts (sodium chloride, NaCl; sodium bromide, NaBr; sodium iodide, NaI) are investigated. Equilibrium conditions of methane hydrate containing MEG and salts are measured in a temperature range 272 similar to 283 K and a pressure range 3.5 similar to 11 MPa. Hydrate inhibition performance in the presence of additives can be summarized as follows: methane hydrate containing (5 wt% NaCl + 10 wt% MEG) > (5 wt% NaBr + 10 wt% MEG) > (5 wt% NaI + 10 wt% MEG). Formation behaviors of methane hydrate with MEG and salts are investigated for analyzing the induction time, gas consumption amount and growth rate of methane hydrates. There are no significant changes in the induction time during methane hydrate formation, but the addition of MEG and salts solution during hydrate formation can affect the gas consumption amount and growth rate.

引用

页码：635 / 641

页数：7