کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6588775 1423242 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurements of hydrocarbon bubble points in synthesized mesoporous siliceous monoliths
ترجمه فارسی عنوان
اندازه گیری نقاط حباب هیدروکربنی در مونولیت های سدیم سنتز شده
کلمات کلیدی
یکنواخت سیلیکون، فشار نقطه حباب، شیلس، رسانه های متخلخل،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Silica based crack-free monoliths having the same pore size range as the oil and gas producing north-american shales were synthesized using a new synthesis procedure. Crack-free monoliths were synthesized by controlling the evaporation rate. Evaporation rate of 0.4 g/cm2 was found optimal for making monoliths in cylindrical enclosures of different sizes for experimentation. The focus of this work was to understand the effects of nano-sized porous media on the saturation pressures of a hydrocarbon mixture of methane and decane. The physicochemical properties of the synthesized monoliths were measured using X-ray diffraction (XRD), nitrogen adsorption/desorption isotherm (BET), pore size distribution curve, transmission electron microscopy (TEM), and scanning electron microscopy (SEM). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) of decane in saturated monoliths revealed different boiling points in comparison to pure decane. The experimentally measured saturation pressures at two different temperatures of the bulk hydrocarbon mixture (decane-methane) matched well with the simulated results. The bubble point pressures of a hydrocarbon mixture in the nano-sized monolith were lower (about 18%) than those in the bulk.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 177, 23 February 2018, Pages 481-490
نویسندگان
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