Prediction of physical properties for non-polar compounds, petroleum and coal liquid fractions

Voulgaris, M; Stamatakis, S; Magoulas, K; Tassios, D

dc.contributor.author	Voulgaris, M	en
dc.contributor.author	Stamatakis, S	en
dc.contributor.author	Magoulas, K	en
dc.contributor.author	Tassios, D	en
dc.date.accessioned	2014-03-01T01:08:29Z
dc.date.available	2014-03-01T01:08:29Z
dc.date.issued	1991	en
dc.identifier.issn	0378-3812	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10530
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026174279&partnerID=40&md5=6b8a473ab63cef7ef0155697a41bd599	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Hydrocarbons	en
dc.subject.other	Physical Properties	en
dc.subject.other	Prediction	en
dc.subject.other	VLE Properties	en
dc.subject.other	Aromatic Compounds--Physical Properties	en
dc.subject.other	Coal Byproducts--Physical Properties	en
dc.subject.other	Equations Of State	en
dc.subject.other	Paraffins--Physical Properties	en
dc.subject.other	Average Absolute Deviation Percent	en
dc.subject.other	Coal Liquid Fractions	en
dc.subject.other	Peng-Robinson Equation of State	en
dc.subject.other	Riazi-Daubert Method	en
dc.subject.other	Saturated Liquid Volumes	en
dc.subject.other	Van Der Waals Equation Of State	en
dc.subject.other	Petroleum Products	en
dc.title	Prediction of physical properties for non-polar compounds, petroleum and coal liquid fractions	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	Several correlations for the prediction of critical properties (Tc, Pc) and acentric factor (omega) for pure compounds and undefined petroleum and coal liquid fractions are tested directly, using a large critical properties' databank for such systems; and indirectly, using the obtained Tc, Pc and omega values to predict vapor pressures (P(s)) and saturated liquid volumes (V1) with the translated Peng-Robinson (t-PR) and van der Waals (t-vdW) Equations of State. Best overall results are obtained with a revised Riazi-Daubert method that uses the normal boiling point (Tb) and the specific gravity at 15-degrees-C (SG15). For heavy fractions, where low vapor pressure data, but not the normal boiling point (Tb) and densities at higher than 15-degrees-C temperature are available, a modification also of the Riazi-Daubert method is proposed that employs the saturation temperature at 10 mmHg (T10) and SG at 25-degrees-C (SG25), thus avoiding the uncertainty involved in obtaining Tb and SG15 by extrapolation. The obtained results are very satisfactory, with typical average absolute errors in P(s) and V1 5-10% and 5-15% respectively.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Fluid Phase Equilibria	en
dc.identifier.isi	ISI:A1991FV99700006	en
dc.identifier.volume	64	en
dc.identifier.issue	C	en
dc.identifier.spage	73	en
dc.identifier.epage	106	en