کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6680036 | 1428065 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental and modeling study on controlling factor of methane hydrate formation in silica gels
ترجمه فارسی عنوان
بررسی تجربی و مدلسازی عوامل کنترل کننده تشکیل هیدرات متان در ژل سیلیکا
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کلمات کلیدی
هیدرات متان، تشکیل، ژل سیلیکا، اندازه منفذ، عامل کنترل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
In order to study the mechanism of methane hydrate formation in porous media, the formation experiments of methane hydrate in porous media at the constant pressure were performed in the temperature range of 274.15-276.15â¯K and the pressure range of 5-8â¯MPa. The silica gels with the average pore diameters of 129.5, 179.6, and 332â¯Ã
were used as the porous media for the experiments. The experimental results indicate that the final gas consumption increases with the increase of the formation pressure and the decrease of the formation temperature. Based on the shrinking core model, the reaction-controlled kinetic model and the diffusion-controlled kinetic model for hydrate formation in silica gels were built, respectively. The reaction-controlled kinetic model well fits the kinetic data in 129.5â¯Ã
and 179.6â¯Ã
silica gels, and the diffusion-controlled model well fits the kinetic data in 332â¯Ã
silica gels with a relatively high regression coefficient (R2â¯>â¯0.99). The formation rate of the methane hydrate is controlled by the gas diffusion process in 129.5â¯Ã
and 179.6â¯Ã
silica gels, and is controlled by the reaction process in 332â¯Ã
silica gels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 225, 1 September 2018, Pages 827-834
Journal: Applied Energy - Volume 225, 1 September 2018, Pages 827-834
نویسندگان
Yu Zhang, Xiao-Sen Li, Zhao-Yang Chen, Zhi-Ming Xia, Yi Wang, Gang Li,