乙烷水合物在水,MEG和TMAB半硫酸盐体系中的相平衡

IF 2.1 3区 工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY
Dariush Mardomi, Mehdi Ardjmand*, Hassan Pahlavanzadeh* and Ferial Nosratinia, 
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引用次数: 0

摘要

石油和天然气行业可以通过精确了解热力学条件或防止其在天然气输送管道中形成来管理笼形水合物气体,从而从储存笼形水合物气体的潜力中受益。在本研究中,尽管确定了MEG对乙烷水合物形成的热力学抑制特性,但在水和MEG存在的情况下,TMAB对乙烷水合物稳定性或分解的影响首次在6个不同的实验体系中进行了研究,分别采用1、2、3和5 wt %的季铵盐组TMAB组合。各系统反应器压力范围为0.5 ~ 3.5 MPa。实验确定了最大笼形物水合物形成的最低温度为272 K。所得数据表明,乙烷水合物的平衡图从1 wt %转变为5 wt %,有利于缓蚀稳定性和缓蚀性能的变化。在MEG和水以接近化学计量比的组合存在时,观察到TMAB对乙烷水合物的最大抑制作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Ethane Hydrate Phase Equilibria in WATER, MEG, and TMAB Semiclathrate System

Ethane Hydrate Phase Equilibria in WATER, MEG, and TMAB Semiclathrate System

The oil and gas industries can benefit from the potential of storing clathrate hydrate gas by managing it with precise knowledge of thermodynamic conditions or preventing its formation in gas transmission lines. In this study, despite the assurance of the thermodynamic inhibition property of MEG on the formation of ethane hydrate, the effect of TMAB on the stability or decomposition of ethane hydrate in the presence of water and MEG was investigated for the first time across six different experimental systems with combinations of 1, 2, 3, and 5 wt % of TMAB from the group of quaternary ammonium salts. The reactor pressure in each system ranged from 0.5 to 3.5 MPa. The minimum temperature of the experiments for maximum clathrate hydrate formation was determined to be 272 K. According to the obtained data, the shift of the equilibrium diagram of ethane hydrate from 1 to 5 wt % changes in favor of the inhibition of stability and inhibition performance. The maximum inhibition of TMAB on ethane hydrate was observed in the presence of MEG and water in combinations close to stoichiometric ratios.

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来源期刊
Journal of Chemical & Engineering Data
Journal of Chemical & Engineering Data 工程技术-工程:化工
CiteScore
5.20
自引率
19.20%
发文量
324
审稿时长
2.2 months
期刊介绍: The Journal of Chemical & Engineering Data is a monthly journal devoted to the publication of data obtained from both experiment and computation, which are viewed as complementary. It is the only American Chemical Society journal primarily concerned with articles containing data on the phase behavior and the physical, thermodynamic, and transport properties of well-defined materials, including complex mixtures of known compositions. While environmental and biological samples are of interest, their compositions must be known and reproducible. As a result, adsorption on natural product materials does not generally fit within the scope of Journal of Chemical & Engineering Data.
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