کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6637235 | 461140 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Liquid-liquid equilibrium data for systems containing Brazil nut biodiesel + methanol + glycerin at 303.15 K and 323.15 K
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Liquid-liquid equilibrium data for systems containing Brazil nut biodiesel + methanol + glycerin at 303.15 K and 323.15 K Liquid-liquid equilibrium data for systems containing Brazil nut biodiesel + methanol + glycerin at 303.15 K and 323.15 K](/preview/png/6637235.png)
چکیده انگلیسی
Due to the amount of compounds involved in the biodiesel production, liquid-liquid equilibrium data are essential in order to predict the proportions in which these compounds exist and subsequently proceed with a more efficient purification and aid in the design of the reactor and ponds. In this study, biodiesel was obtained through the basic transesterification of Brazil nut (Bertholletia excelsa) oil with methanol. Afterwards, the phase equilibrium behavior of this Brazil nut biodiesel + methanol + glycerol system was determined at T = 303.15 and 323.15 K and atmospheric pressure. The solubility curves were determined by the cloud-point method in isothermal conditions. The liquid-phases compositions were measured by determining their refractive index and densities. The Othmer-Tobias correlation was used to ascertain the quality of the experimental tie-lines. The results were correlated with the NRTL and UNIQUAC activity coefficient models. The calculated data showed good agreement with the experimental results, yielding a mean quadratic deviation in the composition of 1.49% and 1.18% using NRTL at 303.15 and 323.15 K, respectively, and 1.85% and 1.97% using UNIQUAC at 303.15 and 323.15 K, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 133, 1 October 2014, Pages 292-298
Journal: Fuel - Volume 133, 1 October 2014, Pages 292-298
نویسندگان
Jefferson D. Gonçalves, MartÃn Aznar, Geormenny R. Santos,