کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
624973 1455413 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of subcooling and amount of hydrate former on formation of cyclopentane hydrates in brine
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Effect of subcooling and amount of hydrate former on formation of cyclopentane hydrates in brine
چکیده انگلیسی

As a concept for a new water desalination technology, the use of gas hydrates is under development. In support of this work, experiments have been conducted to observe the behavior of cyclopentane hydrates and to provide data on thermodynamics, kinetics, the effective hydrate number and the purity of the water recovered from the hydrates. The cyclopentane hydrate formation experiments are performed at subcooling temperatures of 5.6 K and 3.6 K at atmospheric pressure. The brine used is 3 wt.% NaCl. The results show that the kinetics of hydrate formation at a subcooling of 3.6 K is significantly slower than the kinetics for a subcooling of 5.6 K. The effective hydrate number seems to be a function of the subcooling temperature, with 3.6 K subcooling giving a number close to the theoretical value. The quality of the desalinated water is strongly dependent on the experimental procedure and the general observation is that subcooling at 5.6 K provides better purification of the water.

Research highlights
► Effect of cyclopentane concentration and subcooling on hydrate formation.
► 5.6 K subcooling gives faster hydrate formation.
► Higher purity of the recovered water and larger hydrate amount at 3.6 K subcooling.
► Effective hydrate numbers are function of subcooling.
► Cyclopentane concentration influences hydrate formation in a minor degree.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 278, Issues 1–3, 1 September 2011, Pages 268–274
نویسندگان
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