کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10272018 461157 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Methane hydrate nucleation and growth from the bulk phase: Further insights into their mechanisms
ترجمه فارسی عنوان
هسته ی هیدرات متان و رشد از فاز فله: بینش بیشتر در مورد مکانیزم های آن
کلمات کلیدی
هیدراتهای متان، هسته، رشد راکتور خنثی، اثر حافظه،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Moreover, video monitoring has been performed for most of the hydrate formation/dissociation cycles and pictures were taken at different steps of the hydrate formation. The analysis of the results allowed a better understanding of the hydrate nucleation and growth. Two different mechanisms have been observed according to the initial pressure. At initial pressure around 10 MPa, a thick layer of hydrates was created within a couple seconds at the water-gas interface. This layer hinders the gas diffusion and considerably slows down their growth. At 19.5 MPa, the hydrate formation occurs within a larger volume of the bulk phase, and still close to the water-gas interface. The small hydrate crystals are rather dispersed, allowing the diffusion of gas and enhancing the hydrate growth until the formation of a hard layer at the interface of both phases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 117, Part A, 30 January 2014, Pages 442-449
نویسندگان
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