کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6684685 | 501865 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large scale experimental evaluation to methane hydrate dissociation below quadruple point in sandy sediment
ترجمه فارسی عنوان
ارزیابی تجربی در مقیاس بزرگ به تفکیک هیدرات متان زیر نقطه چهار برابر در رسوبات شنی
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کلمات کلیدی
هیدرات متان، انحلال، مقیاس بزرگ، کاهش فشار، نقطه چهارم، رسوب شنی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The Pilot-Scale Hydrate Simulator (PHS), a three-dimensional 117.8Â L pressure vessel, is applied to study the methane hydrate dissociation below the quadruple point in the sandy sediment in this work. The hydrate dissociation behaviors below and above the quadruple point are compared. The influences of the production pressure, the initial reservoir temperature, and the water saturation on the hydrate dissociation below the quadruple point by depressurization are investigated. The results indicate that methane hydrate dissociation below the quadruple point causes ice formation, which can strongly enhance the dissociation rate of the hydrate. The water generated from hydrate dissociation below the quadruple point may immediately form ice and the pore water in the reservoir turns into ice at the same time. Meanwhile, the hydrate dissociation below the quadruple point consumes the latent heat released by ice formation. The lower production pressure causes the higher driving force for hydrate dissociation and ice formation, which results in the higher dissociation rate of the hydrate. In addition, when the production pressure is lower than the quadruple point, a lower initial reservoir temperature is favorable for ice formation, which leads to the higher hydrate dissociation rate. The experimental results from hydrate dissociation in the 'water-saturated' reservoir and 'gas-saturated' reservoir indicate that the rate of ice formation is slower in the 'water-saturated' reservoir.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 162, 15 January 2016, Pages 372-381
Journal: Applied Energy - Volume 162, 15 January 2016, Pages 372-381
نویسندگان
Yi Wang, Jing-Chun Feng, Xiao-Sen Li, Yu Zhang, Gang Li,