Hydrate-containing phase equilibria for mixed guests of carbon dioxide and nitrogen

被引：20

作者：

Kim, Sun Hyung ^{[1
]}

Do Seo, Myoung ^{[1
]}

Kang, Jeong Won ^{[1
]}

Lee, Chul Soo ^{[1
]}

机构：

[1] Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea

来源：

FLUID PHASE EQUILIBRIA | 2011年 / 306卷 / 02期

关键词：

Hydrate-containing equilibrium; Three-phase equilibrium; Four-phase equilibrium; MIXTURES; N-2;

D O I：

10.1016/j.fluid.2011.04.011

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Hydrate-containing phase equilibria for mixtures composed of carbon dioxide, nitrogen and water are of potential importance for the flow assurance in the transportation of captured carbon dioxide. Literature data for such mixture tend to be reported on water free basis. In this study three- and four-phase equilibria were experimentally studied at the pressure ranging from 5 to 20 MPa. Isobaric dissolution temperatures of formed hydrates were measured and reported for accurately determined loading compositions. Complex phase behaviors composed of two-, three- and four- phases were observed and they were analyzed by comparing with calculations using GSMGem program developed by Sloan and Koh [1]. Phase equilibria were found to be sensitive to water contents in water dominating mixtures. CSMGem and HYSYS (version 7.1) from AspenTech calculations were found in general agreements with present and literature data. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：229 / 233

页数：5

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