Estimating density of supercritical carbon dioxide and methane using modified thermodynamic models. (19th March 2018)

• Record Type: Journal Article
• Authors: Zarei, Fariba; Baghban, Alireza
• Is Part Of: Petroleum science and technology. Volume 36:Number 6(2018)
• Page Start: 437
• Page End: 442
• Publication Date: 2018-03-19
• Subjects: density -- supercritical fluid -- carbon dioxide -- methane -- thermodynamic models; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2018.1428625
• Languages: English
• ISSNs: 1091-6466

Abstract

ABSTRACT: Since the density is an important thermodynamic property of the fluid in the wide field of experimental and theoretical studies, in this work, the density of CO2 and CH4, as prominent supercritical fluids in industrial processes was investigated. To that end, five equation of state (EOS) models were used to estimate density of aforementioned. Deviation of each EOS models is validated and then they were modified to achieve lower errors in density prediction. Accordingly, their adjusted correlations reduced the average absolute errors to lower than 5.6%.