کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
230102 1427373 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of critical properties for binary and ternary mixtures of short chain alcohols and alkanes using a flow apparatus
ترجمه فارسی عنوان
تعیین خصوصیات بحرانی برای مخلوط های دوتایی و سه حلقه ای از الکل ها و آلکان های زنجیره کوتاه با استفاده از دستگاه جریان
کلمات کلیدی
حواس بحرانی، پارامترهای بحرانی، داده های تجربی، افزودنی بنزین
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Critical properties of four binary systems and two ternary systems were measured.
• All binary systems show non-ideal behavior especially for mixtures with ethanol.
• All data of binary systems were fitted well with Redlich–Kister equation.
• Critical surfaces of ternary systems were plotted using the Cibulka's expressions.

The critical temperatures and pressures of four binary systems and two ternary systems containing gasoline additives (ethanol + cyclohexane, ethanol + octane, 2-propanol + octane, 2-propanol + decane, ethanol + cyclohexane + octane and 2-propanol + octane + decane) were measured with a low-residence time flow apparatus. The critical properties were determined by observing critical opalescence and phase changes in a quartz glass tube. The expanded uncertainties of critical temperature and pressure were estimated to be less than ±0.4 K and ±0.01 MPa, respectively. The four binary systems show non-ideal behavior especially for ethanol + cyclohexane and ethanol + octane systems. The experimental data of all binary mixtures could be correlated to within 0.06% with the Redlich–Kister equations. Ternary mixtures are newly reported in this work and were correlated with Cibulka's and Singh's expressions.

Experimental critical temperatures for the ethanol (1) + cyclohexane (2) + octane (3) system.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 104, September 2015, Pages 19–28
نویسندگان
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