Equilibrium Conditions for Semiclathrate Hydrates Formed in the CH4 + N2 + O2 + Tetra-n-butyl Ammonium Bromide Systems

被引：39
|
作者：
Zhong, Dong-Liang [1 ]
Ye, Yang
Yang, Chen
机构：
[1] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2011年 / 56卷 / 06期
基金：
中国国家自然科学基金;
关键词：
BUTYL AMMONIUM BROMIDE; SEMI-CLATHRATE HYDRATE; GAS HYDRATE; NATURAL-GAS; FLUE-GAS; POLYETHYLENE OXIDE; METHANE SEPARATION; HYDROGEN CLUSTERS; PHASE-EQUILIBRIUM; CO2;
D O I：
10.1021/je200088f
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In the present work, phase equilibrium conditions for tetra-n-butyl ammonium bromide (TBAB) semiclathrate hydrates formed with the gas mixture (29.95 % CH4 + 60.0 % N-2 + 10.05 % O-2 in mole fraction) were measured. The experimental temperature, pressure, and mass fraction of TBAB ranged from (282 to 290) K, from (0.99 to 6.56) MPa, and from (0.05 to 0.20), respectively. For the gas mixture used in this work, the experimental results showed that at a given temperature, the pressure required to form TBAB semiclathrate hydrates is significantly lower than that required for forming gas hydrates from the same gas mixture. The formation pressure of TBAB semiclathrates formed with the gas mixture is reduced as TBAB concentration is increased in the solution at a given temperature.
引用
收藏
页码：2899 / 2903
页数：5
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