Phase Equilibrium Data of Tetrabutylphosphonium Bromide Plus Carbon Dioxide or Nitrogen Semiclathrate Hydrates

被引：45

作者：

Shi, Ling-Li ^{[1
,2
]}

Liang, De-Qing ^{[1
]}

Li, Dong-Liang ^{[1
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2013年 / 58卷 / 07期

基金：

中国国家自然科学基金;

关键词：

AQUEOUS-SOLUTION SYSTEMS; SEMI-CLATHRATE HYDRATE; HYDROGEN STORAGE; THERMODYNAMIC STABILITY; COLD-STORAGE; CO2; GAS; METHANE; CHLORIDE; CH4;

D O I：

10.1021/je400452f

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, phase equilibrium data of tetrabutylphosphonium bromide (TBPB) + CO2, + N-2 semiclathrate hydrates were measured by employing an isochoric pressure-search method. The experimental temperature, pressure, and mass fraction of TBPB ranged from (282.2 to 292.0) K, from (1.32 to 16.86) MPa, and from (0.050 to 0.600), respectively. The results demonstrated that at a given pressure, the temperature required to form mixed TBPB + CO2, + N-2 hydrates was significantly higher than that required for forming pure Co-2 or N-2 hydrates. In addition, the application of TBPB at 0.371 mass fraction, responding to TBPB center dot 32H(2)O, showed the strongest stabilization effect.

引用

页码：2125 / 2130

页数：6

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