کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
231536 1427439 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement and correlation of the solid–liquid–gas equilibria for carbon dioxide + normal chain saturated aliphatic hydrocarbon systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Measurement and correlation of the solid–liquid–gas equilibria for carbon dioxide + normal chain saturated aliphatic hydrocarbon systems
چکیده انگلیسی

The pressure p–temperature T projections of solid–liquid–gas (S–L–G) three-phase coexistence lines for the carbon dioxide + tetradecanoic acid (C14H28O2) system, the carbon dioxide + hexadecanoic acid (C16H32O2) system, and the carbon dioxide + 1-hexadecanol (C16H34O) were measured by the first melting point method in which the initial appearance of the liquid phase was observed. The profiles of the p–T projections of the S–L–G lines for the carbon dioxide + acid systems are similar to each other, the S–L–G equilibria for the carbon dioxide + acid systems are, however, different from that for the carbon dioxide + 1-hexadecanol systems. The experimental p–T projections of the S–L–G lines were also correlated by the Peng–Robinson equation of state and the van der Waals type mixing rules with two binary interaction parameters introduced into attraction term and size terms, respectively. The present model gave good correlation results for all of the experimental S–L–G lines with maximum average absolute relative deviations of 0.075% for the carbon dioxide + tetradecanoic acid system, 0.14% for the carbon dioxide + hexadecanoic acid system and 0.28% for the carbon dioxide + 1-hexadecanol system, respectively.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 51, Issue 2, December 2009, Pages 136–141
نویسندگان
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