کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8128713 | 1523007 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sustainability of hollow silica matrix for clathrate hydrate recycling
ترجمه فارسی عنوان
پایداری ماتریس سیلیکا توخالی برای بازیافت هیدرات کلاتهات
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کلمات کلیدی
هیدراتهای گاز، متان، دی اکسید کربن، سینتیک تشکیل بازیافت،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
Storage and transportation of greenhouse gases such as methane (CH4) and carbon dioxide (CO2) are of current interest and converting them into hydrates a priori is a workable option. Bottlenecks such as sluggish and inefficient hydrate conversions can be defeated with the help of suitable porous materials. However, reusability of the porous material is a crucial issue. The present study reports the sustainability of low density silica (SiO2), as matrix material, for a number of freezing - thawing cycles without significant loss in hydrate fractions. The experiments on CH4 and CO2 hydrates were conducted respectively at 7.3-7.6Â MPa and 3.6-3.8Â MPa; in the temperature range of 270-300Â K. The faster formation kinetics (t90 < 2Â h, where t90 is the time taken for 90% of total hydrate conversion) and the overall hydrate conversions (â¼75%) are attractive features. Thus, the hydrate system consisting of SiO2 - H2O - CH4/CO2 is suitable for gas storage and transportation applications; and possesses features such as rapid and high convertibility to hydrate and also high recyclability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Natural Gas Science and Engineering - Volume 34, August 2016, Pages 585-589
Journal: Journal of Natural Gas Science and Engineering - Volume 34, August 2016, Pages 585-589
نویسندگان
Kandadai Sowjanya, Pinnelli S.R. Prasad,